REVIEW: Umarex Heckler & Koch USP Air Pistol
The H&K USP .177 cal. BB CO2 air pistol is an almost perfect replica of the H&K USP 9mm, .40 and .45 ACP firearms. Being a non-blowback action, this airgun uses the USP DAO-type trigger which delivers a long, heavy pull. There is no need to cock the hammer in order to take a shot – thanks to that we can carry a loaded replica with the hammer in its primary position.
Another interesting solution taken from the real firearm is the so called decocker which is responsible for decocking the hammer. It allows for a secure release of the cocked hammer without the threat of a random shot. The same switch is also the safety.
This H&K USP air pistol has a realistic drop-out action magazine holds 22 BB shots and houses the CO2 capsule. The H&K USP air pistol is also equipped with an ambidextrous slide release lever, double action with realistic hammer, fixed front and rear sights and integrated weaver accessory rail under the barrel.
The H&K USP is always ready for close-quarters combat with paper and cans. This entry-level .177 cal. air pistol is a non-blowback action design that provides just enough working features to make it an ideal training gun for the H&K USP.
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Amazon.com Product and Customer Reviews
Most helpful customer reviews
0 of 0 people found the following review helpful.
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By Amazon Customer
This was a great purchase, the gun came fast in the mail and the packaging was amazing. The gun feels real to the touch with a metal feel to it. Definitely would recommend it any one else who's looking to buy this product here.
1 of 1 people found the following review helpful.
Great product
By Dee Jones
It is great for rodents
0 of 0 people found the following review helpful.
Five Stars
By Amazon Customer
The H&K is a well built and attractive looking pistol. It is mostly metal and really feels good in my hand. The magazine is clever, but I prefer a BB clip that I can quickly change while leaving the CO2 cartridge in place. If you don't mind stopping to reload every 18 shots it is no big deal. I'm glad I purchased it but there are two minor (to me) other things. First, the slide is purely ornamental. Second the sights are not adjustable. It is definitely worth the money and with the high fps is worth the money.
History behind the firearm that inspired the Umarex H&Koch USP Air Pistol
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.
Work on a new family of pistols commenced in September 1989 focused primarily on the U.S. commercial and law enforcement markets. 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. 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 was formally introduced in January 1993 with the USP40 model (the base version) chambered for the increasingly popular .40 S&W cartridge, followed soon by the USP9 (using the 919mm Parabellum cartridge), and in May 1995the USP45 (caliber .45 ACP). 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.
Design Details
The USP is a semi-automatic pistol with a mechanically locked breech using the short recoil method of operation. This rather conventional lock-up system has a large rectangular lug over the barrels chamber that rides into and engages the ejection port cut-out in the slide. 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. 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. 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 recoil spring assembly is held in place by the slide stop levers axis pin and a round cut-out at the front of the slide. For enhanced reliability in high-dust environments, the locking surface on the front top of the barrels locking lug is tapered with a forward slope. This tapered surface produces a camming action which assists in positive lock-up in the presence of heavy fouling and debris. In this way, the USP shares many design features with the M1911 pistol, although apparently updated for easier operation.
One of the most significant features of the USP is the mechanical recoil reduction system. 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. 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%. The USP recoil reduction system is insensitive to ammunition types and does not require adjustment or maintenance. It functions effectively in all USP models. 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. Abuse and function-testing of USPs have seen more than 20,000 rounds of .40 S&W fired without a component failure. Milspec environmental tests were conducted in high and low temperatures, in mud, immersed in water and in salt spray. In one particular test, a bullet was deliberately lodged in the barrel and another bullet was fired to clear the obstruction. The barrel was successfully cleared with only minor structural deformation and continued to produce consistent groups when test fired for accuracy.
Major metal components on both the USP and Special Operations Pistol are corrosion-resistant. Outside metal surfaces, such as the steel slide are protected by a proprietary "Hostile Environment" nitride finish. Internal metal parts, such as springs, are coated with a Dow Corning anti-corrosion chemical to reduce friction and wear.
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. 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.
Variants: The USP was originally built around the .40 S&W cartridge, but a 919mm Parabellum was introduced at the same time. In May 1995, Heckler & Koch introduced a .45 ACP variant. 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. 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.