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  2. Patriot Ordnance Factory - Wikipedia

    en.wikipedia.org/wiki/Patriot_Ordnance_Factory

    [citation needed] Because hot gases are not injected into the upper receiver, carbon fouling in the action is virtually eliminated. POF-USA's solution to timing problems related to AR-15's with short gas tubes, POF-USA developed precise op-rod/piston geometry and regulated gas pressure to enable rifles and carbines to be properly timed and bolt ...

  3. Barrel threads - Wikipedia

    en.wikipedia.org/wiki/Barrel_threads

    Attaching the barrel to the receiver using a barrel nut and a barrel with a shoulder is an alternative to action threads, which has been used in firearms such as the Sten gun and AR-15. Hand tools Quick barrel change systems is an increasingly popular alternative, as seen in for example SIG Sauer 200 STR , Roessler Titan or Blaser R8 .

  4. List of AR platform cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_AR_platform_cartridges

    375 Stalker, Standard military 7.62x51 cases (also .308), length is trimmed, shoulder is reformed, neck is expanded to .375 375 SOCOM, Proprietary. The case head and rim dimensions exactly match the military 7.62x51 (also .308), however, the case body is slightly wider and has more taper. 400 AR, Wildcat. The parent is the 7.35×51mm Carcano ...

  5. List of firearm brands - Wikipedia

    en.wikipedia.org/wiki/List_of_firearm_brands

    POF-USA Patriot Ordnance Factory, Inc. United States Civilian, law enforcement, military, security Gas-piston-operated weapon systems, firearm accessories, drop-in triggers, patriotic artwork, bolt carriers, bolts, upper receivers, barrel nut heatsinks, E^2 (E-Squared) barrels Perazzi: Czechoslovak Group: Italy Civilian PGM Précision: PGM ...

  6. Receiver (firearms) - Wikipedia

    en.wikipedia.org/wiki/Receiver_(firearms)

    A disassembled Mauser action showing a partially disassembled receiver and bolt. In firearms terminology and at law, the firearm frame or receiver is the part of a firearm which integrates other components by providing housing for internal action components such as the hammer, bolt or breechblock, firing pin and extractor, and has threaded interfaces for externally attaching ("receiving ...

  7. List of military headstamps - Wikipedia

    en.wikipedia.org/wiki/List_of_military_headstamps

    NOTE: The manufacturer and last two digits of the year are on the upper arc of the stamp (e.g., WA 80 for Walter Annexe, 1980). The symbols on the lower arc of the stamp indicates the caliber ( 7.7mm , 5.56mm or 7.62mm ) and R# or R#M# indicate the model (R) and mark (M) of the cartridge, like the Commonwealth L#A# stamp (e.g., R1M1 is the ...

  8. List of equipment of the Pakistan Army - Wikipedia

    en.wikipedia.org/wiki/List_of_equipment_of_the...

    POF Azb DMR MK1: 7.62×51mm NATO Pakistan [10] Designated marksman rifle. Semi-automatic, based on the Heckler & Koch G3 rifle. POF PSR-90: 7.62×51mm NATO Pakistan [11] Used by Special Service Group. Semi-automatic, based on the Heckler & Koch PSG1. Steyr SSG 69.308 Winchester Austria [12] Bolt-action Accuracy International Arctic Warfare.308 ...

  9. Pakistan Ordnance Factories - Wikipedia

    en.wikipedia.org/wiki/Pakistan_Ordnance_Factories

    The Pakistan Ordnance Factories (POF) is a major firearms and a defence contractor headquartered in Wah Cantt, Punjab, Pakistan. [1] Described as "the largest defence industrial complex under the Ministry of Defence Production, producing conventional arms and ammunition to the international standards" by the Government of Pakistan.