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The HK P9 is a semi-automatic pistol from Heckler & Koch in 9×19mm Parabellum, .45 ACP, and 7.65×21mm Parabellum and the first to use a variation of H&K's roller delayed blowback system in a pistol format and polygonal rifling [1] now common in H&K designs.
HK P9S, HK P9K: HK P7: HK PSP, HK P7M8, HK P7M13, HK P7M10, HK P7K3, HK P7M7, HK P7PT8: HK USP (Universal Self-loading Pistol) HK USP Standard, HK USP Compact, HK USP Tactical, HK USP Expert, HK USP Elite, HK USP Match, HK P8: HK Mark 23 (also known as Mark 23 Mod 0 or HK SOCOM) HK P2000: HK P2000SK: HK P30: P30L, P30SK: HK45: HK45, HK45C ...
Unlike similar systems employed in other pistols, the USP design does not incorporate a hydraulic damper and requires no maintenance. Using a similar recoil reduction system, the H&K Mk 23 pistol fired more than 30,000 high pressure (+P) cartridges and 6,000 proof loads without damage or excessive wear to any major components.
The HK4 is a pocket pistol, first introduced by Heckler & Koch in either 1964 [2] or 1967. [3] It was distinctive for allowing shooters to swap barrels chambered for different cartridges without tools and for having a durable but light hard-anodized aluminum-alloy frame.
Heckler & Koch GmbH (HK or H&K; German pronunciation: [ˌhɛklɐ ʔʊnt ˈkɔx]) is a German firearms manufacturer that produces handguns, rifles, submachine guns, and grenade launchers. The company is located in Oberndorf am Neckar , Baden-Württemberg and also has subsidiaries in the United Kingdom, France, and the United States.
A schematic of the P7's gas-delayed blowback system.. The P7 is a semi-automatic blowback-operated firearm. It features a unique gas-delayed blowback system modeled on the Swiss Pistole 47 W+F (Waffenfabrik Bern) prototype pistol [6] (and ultimately on the Barnitzke system first used in the Volkssturmgewehr 1-5), [7] which used gas pressures from the ignited cartridge and fed them through a ...
The Heckler & Koch VP9 (known as SFP9 in Europe and Canada) is a polymer-framed semi-automatic striker-fired handgun.The VP designation in the name refers to Volkspistole, which translates to "people's pistol" [4] while SFP stands for "striker-fired pistol". [5]
As for the endurance tests, the four P9S specimens fired a total of 18,697 rounds with 360 stoppages, producing an MRBS number of 52 (18,697/360). The VP70 performed far worse, firing a mere 771 rounds with 137 stoppages for an MRBS of only 5. In fairness to the VP70, the ammunition used for these tests was extremely suspect.