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A PSA 5.7 Rock with a threaded barrel and a 23 round magazine. The 5.7 Rock is a semi-automatic pistol developed, manufactured, and sold by Palmetto State Armory. [ 2 ] It is chambered for the FN 5.7×28mm cartridge and is characterized by its generally low recoil. It is a competitor to the Five-seven, Ruger-57, and M&P 5.7. [ 4 ][ 5 ]
In C.I.P. regulated countries, every rifle cartridge combination has to be proofed at 125% of this maximum C.I.P. pressure to be certified for sale to consumers, referred to as "PE". This means that 5.7×28mm chambered arms in C.I.P. regulated countries are currently (2018) proof tested at 4,313 bar (431 MPa; 62,555 psi) PE piezo pressure. [ 7 ]
PSA has now begun offering the AK-103, AK-104 and the AK-105, based on the modernized AK-100 family. Palmetto State Armory also produces a line of 1911 handguns, [ 5 ] AR-10 rifles, 9mm AR-style pistols [ 6 ] and various AR style rifled-uppers ranging in caliber and cartridge dimensions from .22 Long Rifle to .308 Win / 7.62x51 NATO .
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PSA 5.7 Rock – Semi-automatic pistol chambered for the 5.7×28mm cartridge; QSZ-92 – Chinese pistol designed by Norinco, utilizing proprietary 5.8×21mm armor-piercing ammunition. Remington XP-100 – The Remington XP-100 (from eXperimental Pistol number 100) is a bolt-action pistol produced by Remington Arms from 1963 to 1998. The XP-100 ...
Prostate-specific antigen (PSA, also known as kallikrein III, seminin, semenogelase, γ-seminoprotein and P-30 antigen) is a 34- kD glycoprotein produced almost exclusively by the prostate gland. It is a serine protease (EC 3.4.21.77) enzyme, the gene of which is located on the 19th chromosome (19q13) in humans.
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The MP-443Grach[ a ] (Russian: MП-443 Грач, lit. 'rook') or "PYa", for " Pistolet Yarygina" ("Yarygin Pistol"), following traditional Russian naming procedure (Russian: Пистолет Ярыгина), is currently the Russian standard military-issue side arm. The development was headed by the designer Vladimir Alexandrovich Yarygin [ ru ].