Testing with a variety of ammunition proved the USP meets these high standards. Weight: Weapon approx. Customers with aftermarket extended barrels utilize this product as a barrel shroud. In addition, the USP Compact pistol can retain its external safety with the LEM trigger—making it the only modified double-action pistol with an external safety. First time at the range with my USP 45 and a new Jarvis 6" barrel and aluminum "Match" weight (not the OEM steel "Match" weight which can run up to $400 used). Also, the USP does not have a magazine lockout feature (also known as a magazine disconnector). Shooting my new HK USP Expert in 9mm The USP was originally built around the .40 S&W cartridge, but a 9×19mm Parabellum was introduced at the same time. •Provides expert medical/scientific input to the clinical development program ... •Ensure products and raw materials comply to FDA/USP regulations ... pre-weight at Cosway Company - … Other variants of the standard USP include the USP Tactical, USP Expert, USP Match, USP Elite and the standard sidearm of the German Arm… Safety testing exceeded the ANSI/SAAMI requirements adopted in May 1990. Made of steel or aluminum they can be used with any length barrel. It also reduces recoil effects on the pistol components. The USP is composed of a total of 54 parts and is broken down into 7 major components for maintenance and cleaning: the barrel, slide, recoil spring, recoil spring guide rod, the frame, slide stop and magazine. The USP Compact comes standard with a bobbed hammer equipped with a flat rubber external thumb grip. However, after the jet funnel is installed, only jet funnel magazines can be used. The gun was also subjected to NATO MIL-SPEC mud and rain tests; it passed without difficulty. Although longer, the Elite is slightly more accurate. The USP Compact series was introduced in 1996 and is available in 9 mm Parabellum, .40 S&W, .45 ACP, and, exclusively to the Compact model, .357 SIG. Magazine, 1101 Mason Circle Drive
Pevely, MO 63070
Mon-Fri 8:00am - 4:00pm CST, © 2021 Midwest Gun Works, Inc. - All Rights Reserved, Match Weight, USP Expert 9/40, Steel w/o Rail, CNC Machined with +/- .001 (mm) Tolerances, using State of the Art CNC Machines, Hardware Included (Screws, Lock Washers, and Allen Key). The USP has an accessory rail at the front of the frame for attachments of aftermarket equipment such as laser sights and weapon lights. The Expert has adjustable target sights similar to the USP Match, Elite, and Tactical, however the slide the rear sight seat is milled lower. On August 24, 2004, SIG Sauer and Heckler & Koch/HK Defense won major pistol contracts with the United States Department of Homeland Security. The USP Expert (9 mm Parabellum, .40 S&W, .45 ACP), was introduced in 1998, and includes all the features of the Tactical, with the exception of the threaded barrel. Hot Rolled A36 Steel compensator WITHOUT picatinny rail will add additional weight to the front of the gun to assist in reducing vertical recoil "bounce" which can lead to tigher grouping. Made in USA This version also is published in the 1st Supplement to USP 30–NF 25. This 12 oz. Heckler & Koch USP in stock! Almost identical to the standard USP, the Custom sport is aimed at target and practical shooting users. [11] Sound suppressors designed for the USP Tactical are available from Brügger & Thomet and Knight's Armament. On 9 mm and .40 caliber USPs, magazines are constructed of polymer reinforced with stainless steel. Fits Heckler and Koch USP expert pistols chambered in 9mm and .40 S&W. HK USP Expert Match Weight (Steel) $ 210.00 Buy Match Weight for HK45 series handgun from HK. This reduces possible snag from the hammer on a holster or clothing while the pistol is being drawn, but still allows the USP Compact to be cocked from a decocked position even in the absence of a spurred hammer. 770 g Magazine approx. This two piece matte black compensator for the H&K USP Expert attaches using two small screws and fully encompasses the frame and trigger guard to add rigidity and strength. The Expert may be used with an extended magazine well, or jet funnel, in 9 mm and .40 S&W calibers. When a cartridge is fired, pressures generated by the ignited powder drive the cartridge casing back against the breech face on the slide, driving back both the barrel and slide as they remain locked together in the manner described above. New duty pistols, the SIG Sauer Model P229 DAK, in .40 Caliber Smith & Wesson, were eventually issued to the HSI Special Agents after new pistol contracts were awarded by DHS.[21]. Standard flat floorplates are also available for the USP Compact magazines. To fit the Expert / Elite the mount must be modified. Standard USPC barrels do not feature the o-ring. $ 195.00 Buy Match Weight for P30 series handgun from HK. Due to the smaller size of the frame, magazines for the Compact variant may have a handgrip extension to better accommodate the shooter's hand. The USP Expert also retains the USP match trigger. It also features an extended steel slide, mostly hiding the longer O-ring barrel. The contract was valued at $26.2 million. The key to this improved accuracy was, according to Kimber, extensive hand fitting in the company’s Custom Shop. [12], The KSK of the German Army and the German Navy Kampfschwimmer use the USP Tactical under the designation "P12". The P8 has a traditional lands-and-grooves barrel instead of a polygonal barrel. The jet funnel magazine can be used without the jet funnel installed, and will protrude slightly from the bottom of the magazine well. Clarification of the performance specifications and prototype trials were carried out in close cooperation with national and international renowned target shooters. Available to the competitive American shooter in three calibers, … 53 g USP – CAL. Proof round firing resulted in no cracks, deformations, or increase in head space. This weight is said to provide a recoil counterbalance to aid in target tracking. Hildreth is currently a member of the USP's Adulteration Expert Panel (ADSDDA) and is the chair of the AOAC working group on chondroitin. The bobbed hammer was a factory option for the Expert if it was to be used in IPSC for the Standard Division because the original version "in its ready condition" did not fit the box for Standard division in IPSC. During testing, a bullet was deliberately lodged in a USP barrel. USP prototypes participated in rigorous testing alongside H&K's entry in the Offensive Handgun Weapon System (OHWS) program requested by the U.S. Special Operations Command (USSOCOM) and which would later result in the Mk 23 Mod 0. This can be done since decocking the weapon does not fully drop the hammer, leaving it in a somewhat "half-cocked" state. The USP can also be converted from one type of trigger/firing mode to another. [22] The HK pistol models chosen were the HK P2000 US, HK P2000 SK Subcompact, and the USP Compact/LEM (Law Enforcement Modification). The HK Parts USP 45 Comp Weight™ is the world’s first quick detach Comp Weight™, compensator that clamps effortlessly onto your pistol frame and locks into position in seconds. [3] Models offered include: USP 9MM FS, USP 9MM Expert, USP 40 Compact, USP 40 FS, USP 40 Expert, USP 45 Compact, USP 45 FS, USP 45 Expert, HK45, P30 9MM, P30L 9MM, and VP9. This rather conventional lock-up system has a large rectangular lug over the barrel's chamber that rides into and engages the ejection port cut-out in the slide. The rear of the USP grip is stepped, and combines well with the tapered magazine to allow for rapid reloading. The Gold Match Ten II was intended to be the most accurate of the five models that make up the Ten II series. The Jet Funnel magazines are clear plastic, and hold 18 rounds for 9mm, and 16 rounds for .40 S&W. .40S&W. Both the Expert and Elite accept high capacity magazines (18 rounds in 9mm). Heckler & Koch USP Expert V1 Pistol - The USP Expert achieves the highest levels of accuracy by combining features of the HK Tactical and Mark 23 pistols with a new slide design. Features include an extended threaded o-ring barrel with polygonal bore profile and taller sights enabling use of sound suppressors. Reduction of peak shock forces also contributes to softer recoil for the shooter, although these "felt recoil" values are subjective. The extended slide adds weight to help reduce muzzle flip and felt recoil. Designed primarily to buffer the slide and barrel and reduce recoil effects on the pistol components, the system also lowers the recoil forces felt by the shooter up to 30%[citation needed]. [3] The USP prototypes were then refined in 1992, based on input from the OHWS trials, and the design was finalized in December of the same year. The USP is a semi-automatic pistol with a mechanically locked breech using the short recoil method of operation. The USP Match (9 mm Parabellum, .40 S&W, .45 ACP) has the same features offered on the Expert, except for a barrel weight that replaces the elongated slide found on the Expert. Description: Match Weight, USP Expert 9/40, Steel w/o Rail. The USP was originally built around the .40 S&W cartridge, but a 9×19mm Parabellum was introduced at the same time. The standard USP magazines are too short to lock in place. [3], The USP45CT Compact Tactical is a .45 caliber handgun developed for U.S. special operations. [6] Using this same recoil reduction system, one of the related H&K Mk 23 .45 ACP pistols fired more than 30,000 high pressure (+P) cartridges and 6,000 proof loads without damage or excessive wear to any major components. The barrel is cold-forged from chromium steel for increased life. [16], The USP was developed at the same time as the SOCOM MK23, the pistol underwent much of the same testing. It combines features of the full-size USP45 Tactical pistol in a concealable package. In addition to the variants previously described for the full size USP, an ambidextrous safety is available from the manufacturer as a separate part. USP Compact models lack the mechanical recoil reduction system of the larger full sized USP pistols. The extended slide adds weight to help reduce muzzle flip and felt recoil. Hot Rolled A36 Steel compensator WITHOUT picatinny rail will add additional weight … This tapered surface produces a camming action which assists in positive lock-up in the presence of heavy fouling and debris. The LEM system supposedly also provides reliable primer ignition, since it uses a stronger hammer spring. Developed for the U.S. Special Operations System, this same recoil reduction system was tested and proven in the Mark 23 pistol. In 2004, after the I&NS's criminal investigations branch merged with the U.S. Customs Service's Office of Investigations into the U.S. Department of Homeland Security's Homeland Security Investigations, the former I&NS Special Agents continued to carry the USP Compact. USP Expert USP Elite USP Tactical USP Custom Sport Rifles HK243 S SAR HK243 S TAR USC MR223 A3 - 11" MR223 A3 - 14.5" MR223 A3 - 16.5" MR308 A3 - 13" MR308 A3 - 16.5" MR308 A3 - 20" MR308 A3-28-16,5" MR308 A3-28-20" G28 Z A spurred hammer, similar to the one that comes as standard on the P10, can be installed onto the USP Compact. The second bullet cleared the barrel, resulting in a barely-noticeable bulge. Standard Factory Length, Match Weight Length [Add $10.00], Match Weight Length & Ported [Add $120.00], Ported [Add $120.00] Barrel Fit: Drop In, Fitted – Slide Must Be Sent In [Add $45.00] Reviews There are no reviews yet. United States Department of Homeland Security, Canadian Special Operations Forces Command, Recherche Aéroportée et Actions Spécialisées, South African Police Service Special Task Force, "Heckler & Koch :: Product Overview - USP Elite", "Heckler & Koch USP (Universal Self-Loading Pistol) Semi-Automatic Pistol (1993)", "Heckler & Koch Universal Self-loading Pistol (USP)", "Department Of Homeland Security Awards Handgun Contracts", "SIGARMS and Heckler & Koch/HK Defense Win Major Pistol Contracts with DHS", "Individual Weapons - Combat Pistols: Poised for a Shift", "Estonian Army Replaces Pistol of Makarov", "Pistolet automatique - HK USP Compact Marine National", "RIEAS Research Institute for European and American Studies", "L'Unite d'Intervention de la Police Luxembourgeoise", "UPS Unidad Especial de la Policia Luxembourguesa", "//- Strona poświęcona Wojskowej Formacji Specjalnej GROM -//", "AFEGANISTÃO: UNIDADE DE PROTECÇÃO DA FORÇA EM OPERAÇÕES - Operacional", "Singapore Police Force - Police Life Monthly", "Web Del Grupo Especial De Operaciones (GEO)", "Heckler & Koch Defense Wins Transportation Security Administration Pistol Contract", "State Police: Maine State Police History", Current German infantry weapons and cartridges, https://en.wikipedia.org/w/index.php?title=Heckler_%26_Koch_USP&oldid=1008383458, Weapons and ammunition introduced in 1993, Articles with self-published sources from February 2015, Articles with dead external links from March 2017, Articles with permanently dead external links, Short description is different from Wikidata, Articles with unsourced statements from November 2017, Creative Commons Attribution-ShareAlike License, Patridge, "3-dot" type; adjustable rear on, This page was last edited on 23 February 2021, at 01:24. [17], Temperature testing required the USP be frozen to −42 °C and fired, frozen again, then be heated to 67 °C and fired. The USP Elite (9 mm Parabellum, .45 ACP) takes features found on the Tactical, Expert, and Match models, and combines them with a 6.02 in (153 mm) barrel[2] and hand-fitted 9.25 in (235 mm) extended slide. The primary benefit of low peak shock is a decrease in wear and tear on pistol components, a great concern with the +P cartridge in 9 mm, .40 S&W, and .45 ACP. Heckler & Koch Match Weight Aluminum & Steel Compensators. During the USP testing phase, the recoil-reduction system reduces the force on the USP grip to approximately 300 newtons (67 pounds-force). Unique ECL Technology Electronically Controlled Load (ECL) and USP Minimum Weight Standard. However, the operator could pull the trigger approximately halfway back in a dry-fired position to put the hammer in a half-cocked state, allowing the hammer to be fully cocked with the thumb. [19], The P10, adopted by many German State Police forces, is a USP Compact with the addition of a spurred hammer. Finger recesses in the grip frame also aid in magazine removal. The barrel was successfully cleared with only minor structural deformation and continued to produce consistent groups when test fired for accuracy. approx. These two features may limit the use of holsters designed for standard USPC pistols. The recoil spring assembly is held in place by the slide stop lever's axis pin and a round cut-out at the front of the slide. The USP was adopted in Germany by the Bundeswehr (German armed forces) as the P8 in 1994. A shaped lug on the underside of the barrel chamber comes into contact with a hooked locking block at the end of the steel recoil spring guide rod, lowering the rear end of the barrel and stopping the barrel's rearward movement. The USP Tactical (9mm Parabellum, .40 S&W, .45 ACP) incorporates an adjustable rear sight, a higher-profile front sight (as to be visible above the suppressor), an extended threaded barrel and O-ring, a match grade trigger, and an adjustable trigger stop (the 9mm model, referred to by HK as the "USP9SD (tactical)" does not have the match trigger with adjustable trigger stop, O-ring, and does not carry the "Tactical" marking on the slide of the USP40 and USP45 Tactical models, making it a standard-size USP9 with threaded barrel and raised & adjustable target sights; those features were added to it in 2015). Outside metal surfaces, such as the steel slide are protected by a proprietary "Hostile Environment" nitride finish. Enhanced versions of the USP, the USP Tactical models are designed for users who need the features found on the HK Mark 23, but in a more compact and lighter weight pistol. The USP was formally introduced in January 1993[3] with the USP40 model (the base version) chambered for the increasingly popular .40 S&W cartridge, followed soon by the USP9 (using the 9×19mm Parabellum cartridge), and in May 1995—the USP45 (caliber .45 ACP). The USP recoil reduction system is insensitive to ammunition types and does not require adjustment or maintenance. This months IDPA in Midland, TX. The compensator bolts onto your gun using two small screws, allen key included. The standard barrel produces the most downward force by directing the muzzle gases upward. It also features an extended steel slide, mostly hiding the longer O-ring barrel. Match Weight, USP Expert 9/40, Steel w/o Rail. The rail is of proprietary design (versus the common picatinny rail), so equipment options are limited compared to other tactical pistols. According to the company, the LEM trigger allows for faster follow-up shots (repeat shots) on target than a standard double-action-only system. After 3 mm (0.12 in) of unrestricted rearward travel, the projectile has left the barrel and gas pressures have dropped to a safe level. Be the first to review “HK USP EXPERT 9MM BARREL” Cancel reply. $ 175.00 Buy Match Weight … [15] In theory, since both companies' adapters use the semi-standard picatinny design, the adapters should accept any standard pistol mounted weapon light, but because the USP has such a large trigger guard and since there is no strict standard for rail placement, some lights may not be within finger reach of the operator. We are your HK USP 45 expert! The USP Expert was developed especially for target shooters. The result is a USP ideally suited to IPSC (International Practical Shooting Competition) and other practical target shooting applications. An extended slide release lever is positioned to allow easy operation without changing the grip of the shooting hand. It was discontinued in 1999. General: Calibre .40 S&W Operating principle Recoil-operated with modified Browning locking system Magazine capacity 14 rounds Sights 3-dot Dimensions: Length min./max. After installation, the USP Compact effectively becomes a right or left-handed firearm with respect to the decocker and manual safety functions. Magazines on the USP .45 are all-metal. These included dropping a USP with a primed cartridge and decocked hammer on a variety of hard surfaces without discharging. USP documentary standards for dietary supplements are supported by chemical Reference Standards, which are highly characterized specimens of dietary ingredients, impurities, and degradation products, as well as USP compendial reagents and performance calibrators that are specified for use when conducting official USP–NF tests and assays. [18] The P8 has minor differences from the standard USP model: translucent magazines, a reversed safety/decocker lever (on the P8, down indicates 'safe', and up indicates 'fire' — the opposite of the standard USP), and the 'S' and 'F' letters are printed onto the frame instead of onto the lever. There are nine commercially available modifications (called "variants" by HK). [19][20], In 1998, the H&K USP Compact with the LEM trigger action, in .40 Smith & Wesson, was adopted by the United States Immigration and Naturalization Service as the duty sidearm for its Special Agents and plain clothes officers. Peak force shock on competing .40 caliber polymer and metal framed pistols was around 5,000 newtons (1,100 pounds-force). The USP control lever, a combination safety and decocking lever, is frame mounted and quickly accessible, unlike the slide-mounted safeties common on many semi-automatic pistols. The Expert has adjustable target sights similar to the USP Match, Elite, and Tactical, however the slide the rear sight seat is milled lower. This 12 oz. Call (570)368-3920. Most USP Elite models are used as target pistols. [5][6], By using a modular approach to the internal components,[4] the control functions of the USP can be switched from the left to the right side of the pistol for left-handed shooters. It functions effectively in all USP models. [6] Internal metal parts, such as springs, are coated with a Dow Corning anti-corrosion chemical to reduce friction and wear.[8]. The Gold Match Ten II weighed in at 30 ounces, the same as the HK USP Expert 45. Water immersion and salt spray also presented no problems. Instead, a more compact recoil buffering system is composed of a polymer bushing, around the captive recoil spring, which is designed to absorb energy at the end of the slide's travel rearward. This polymer bushing, with an estimated lifespan of around 20,000 rounds, is used instead of the double spring/captive recoil spring/guide rod found in the full sized USP. This mount fits: USP Tactical 9mm USP Tactical .45 ACP USP 9mm USP 40 S&W USP .45 ACP USP Expert (with above mentioned modification) USP Elite (with above mentioned modification) The USP ELITE CUT does not work with bottom load batteries that do not have a tray (Vortex Venom). Attempts to fire the USP pistol with an unlocked breech proved unsuccessful. The pistol was then fired for accuracy, and the resulting group measured less than 4 inches at 25 meters. The LEM trigger can be installed on existing USP Compact pistols acquired before the LEM trigger came on the market—either by a certified gunsmith or by sending the pistol to Heckler & Koch. Putting some rounds through some of my favorite guns, the USPs Elite and Expert with Merkle Tuning weight additions. Abuse and function-testing of USPs have seen more than 20,000 rounds of .40 S&W fired without a component failure. In contrast to the ambitious and innovative P7, P9S, and VP70Z designs, the USP uses a more conventional Browning-style cam-locked action, similar to that used in the Hi-Power, but with a polymer frame.[3][4][5]. One of the unique features of the USP is the wide variety of the trigger styles available, which may be quickly swapped. The USP surpassed these commercial requirements, as well as German Army and police tests, including repeated drop tests from six feet (1.8 m), hammer first, onto a steel backed concrete slab. Match Weight compensators are engineered for a precision fit for each Heckler & Koch model. In one particular test, a bullet was deliberately lodged in the barrel and another bullet was fired to clear the obstruction. Other variants of the standard USP include the USP Tactical, USP Expert, USP Match, USP Elite and the standard sidearm of the German Armed Forces (Bundeswehr)—the P8. HK subsequently stretched the 9x19mm and .45 ACP variants of the Expert to create the USP Elite, which features a 6-inch barrel. Another cartridge was then fired into the obstructing bullet. The LEM trigger uses a two-piece "pre-cocked hammer" composed of a cocking piece and an external hammer. USP barrels after November 1994 use a polygonal profile; 1994 and earlier models use traditional 'land and grooves' rifling. All models have a variety of customization including right and left-hand threads for suppressor or compensator use, extended length, and ported for reduced muzzle rise. Works in the same matter on the tactical barrel just slightly less force. Heckler & Koch do not authorise caliber conversions, but a separate barrel for a .357 SIG or .40 S&W can be purchased from HK or from aftermarket companies. A unique feature of the USP Tactical is that the barrel is left-hand threaded (counter-clockwise to tighten), which makes the pistol incompatible with suppressors designed for the MK23 Mod 0. The slide is contoured in a distinctive fashion forward of the frame to reduce weight and improve balance. The USP 9/40 Comp Weight™ can be used with the standard length and tactical length barrels. Magazine, Heckler and Koch USP40 Expert .40 S&W 16 Rd. USP Expert USP Elite USP Tactical USP Custom Sport Rifles HK243 S SAR HK243 S TAR USC MR223 A3 - 11" MR223 A3 - 14.5" MR223 A3 - 16.5" MR308 A3 - 13" MR308 A3 - 16.5" MR308 A3 - 20" MR308 A3-28-16,5" MR308 A3-28-20" G28 Z This is done by retracting the slide back to align the slide stop axis pin with the disassembly notch on the left side of the slide and withdrawing the axis pin. Your email address will not be published. $ 195.00 Buy Match Weight for USP series handgun from HK. For instance, one of the few weapon lights compatible with the USP is the UTL (Universal Tactical Light) made by Insight Technology, and is only available through H&K dealers. The USP Compact cannot be cocked from a dry-fired position as the hammer will be flush to the back of the slide. The USP 45 is light among 0.45 ACP pistols but considerably heavier than most sidearms for law enforcement.[9][10]. This is due to a lighter trigger pull (7.3–8.5 lbf) and shorter trigger reset than standard DAO trigger systems. In addition to a wide selection of trigger/firing modes, the USP has an ambidextrous magazine release lever that is shielded by the trigger guard from inadvertent actuation. Design work on a new family of pistols commenced in September 1989 focused primarily on the United States commercial and law enforcement markets. In May 1995, Heckler & Koch introduced a .45 ACP variant. We carry everything in stock from barrels, stocks, holsters, frame parts, slide parts, magazines, lasers, and night sites. hk usp expert .45 / 9mm / .40 (heckler & koch) match weight steel compensator with or without picatinny rail $ 210 00 HK USP FULL SIZE (HECKLER & KOCH) 9mm / .45mm / .40mm MATCH WEIGHT STEEL COMPENSATOR WITH OR WITHOUT PICATINNY RAIL One of the most significant features of the USP is the mechanical recoil reduction system. German Navy combat divers used the USP for years without any signs of corrosion. Attachment of specialty equipment to the USP requires a specialized gunsmith to complete the work. No tax & free shipping. This system is incorporated into the recoil spring assembly, located below the barrel and consists of a heavy, captive coil spring around the guide rod. Fits Heckler and Koch USP expert pistols chambered in 9mm and .40 S&W. The perfect addition to your USP 45 and USP 45 Tactical firearm with our low profile, aggressive Comp Weight™ that attaches to the USP Proprietary Rail. ECL is A&D’s unique technology (patent pending) of generating a minute load (0.3 to 3% of the balance capacity) by purposely altering the equilibrium state of the electromagnetic force restoration sensor. The USP (Universelle Selbstladepistole or "universal self-loading pistol") is a semi-automatic pistol developed in Germany by Heckler & Koch GmbH (H&K) of Oberndorf am Neckar as a replacement for the P7 series of handguns. Heckler and Koch USP9 Expert 9mm 18 Rd. The USP Tactical .45 ACP variant is also in limited use by the Bundeswehr, designated as the P12. The HK USP 9 Expert uses a modified Browning-type action and the USP recoil reduction system lowers recoil forces felt by the shooter. [14] As a workaround, some companies offer adapters to convert the USP's rail for use with attachment to mount to picatinny rails. These are scaled-down USPs, and are available in all the same cartridges as the full size version, and additionally the .357 SIG. SureFire adapters for both the USP and USP Compact are compatible with their accessories, and GG&G makes the two similar adapters for compatibility with Streamlight's TLR range of weapon lights and lasers. The Elite also includes higher-profile adjustable front and rear sights. Designed to direct muzzle gases upward and allow for fast & more accurate follow up shots, the steel compensator also adds 12 oz. H&K USP Expert 9mm, DA/SA, Adjustable Sights With Jet Funnel Brand new Heckler & Koch USP Expert chambered in 9mm. All USP magazines will drop free of the pistol frame when the magazine release is depressed. The United States Pharmacopeia (USP) was created nearly 200 years ago, dedicated to instilling trust where it matters most: in the medicines, supplements and foods people rely on for their health. The HK USP is designed for people who need the features of the HK Mark 23, but in a lighter weight. Utilizing this strengthening method and engineering a fully opened top, this product can be used with any length barrel. The hammer is pre-cocked as a round is chambered (slide is cycled). This includes combination of double-action and single-action (DA/SA) and double-action only (DAO) modes.[6]. The perfect addition to your USP 9 & USP 40 and USP 9/40 Tactical firearm with our low profile, aggressive Comp Weight™ that attaches to the USP Proprietary Rail. These are used with larger-capacity magazines. As of January 1, 2007, the updated, harmonized revision of General Chapter <905> published as an Interim Revision Announcement in Pharmacopeial Forum 32(6) [November–December 2006] is official. The USP Expert also retains the USP match trigger. The USP Compact series was introduced in 1996 and is available in 9 mm Parabellum, .40 S&W, .45 ACP, and, exclusively to the Compact model, .357 SIG. [20] Both P8 and P10 are chambered in 9×19mm Parabellum (9mm NATO) only. Certain models of this gun also have a slightly longer slide-release, or move the mechanism toward the grip for increased comfort. The first USP Compact models appeared in 1996.