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  2. Caliber conversion device - Wikipedia

    en.wikipedia.org/wiki/Caliber_conversion_device

    A caliber conversion device is a device which can be used to non-permanently alter a firearm to allow it to fire a different cartridge than the one it was originally designed to fire. The different cartridge must be smaller in some dimensions than the original design cartridge, and since smaller cartridges are usually cheaper, the device allows ...

  3. Patriot Ordnance Factory - Wikipedia

    en.wikipedia.org/wiki/Patriot_Ordnance_Factory

    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 speeds (cyclic rates) to be precisely controlled, enhancing extraction and feeding reliability, as well as reducing wear and ...

  4. Adaptive Combat Rifle - Wikipedia

    en.wikipedia.org/wiki/Adaptive_Combat_Rifle

    It is available for the civilian market in 5.56×45mm NATO, 6.8mm Remington SPC and .450 Bushmaster via conversion kits. [9] A 7.62×39mm conversion kit was done by Templar Precision. [28] The trigger/manual safety unit is made as a single removable item, and mostly utilises AR-15 compatible parts. The rifle features a quick-detachable barrel ...

  5. List of AR platform cartridges - Wikipedia

    en.wikipedia.org/wiki/List_of_AR_platform_cartridges

    Any AR-15/AR-10 cartridge cases that are derived from the 7.62x51 can also be formed from these listed calibers. (7.62x51 & .308 are similar in external dimensions though the Brass has different internal capacity and Max PSI recommendations are different & Chambers are different.) AR-10: The AR-10 is slightly larger and heavier than the AR-15.

  6. Emtan Karmiel - Wikipedia

    en.wikipedia.org/wiki/Emtan_Karmiel

    MZ-15 P FRB MZ-15 with piston operation system and folding retractable buttstock. MZ-47 S semi-automatic rifle for use with AK47 magazines and ammunition7.62x39 (AR15 platform with AK47 compatibility) MZ-300 S semi-automatic rifle 300 blackout 7.62x35 (AR15 platform with 300 blackout barrel) [citation needed]

  7. Lewis Machine & Tool Company - Wikipedia

    en.wikipedia.org/wiki/Lewis_Machine_&_Tool_Company

    A patented AR-15-pattern is produced with a bolt design featuring a redesigned extractor intended to improve the extraction of cartridges under adverse conditions. The company also produces a redesigned bolt carrier intended to improve the reliable performance of the rifle's “internal piston” system by obtaining a similar timing sequence with 14.5-inch carbine-length barrels compared to 20 ...

  8. AR-15–style rifle - Wikipedia

    en.wikipedia.org/wiki/AR-15–style_rifle

    Rifles styled like the AR-15 come in many sizes and have many options, depending on the manufacturer. The lower receiver, without the receiver extension, rear takedown pin, and buttstock, is shown at bottom. An AR-15–style rifle is a lightweight semi-automatic rifle based on or similar to the Colt AR-15 design.

  9. Robinson Armament XCR - Wikipedia

    en.wikipedia.org/wiki/Robinson_Armament_XCR

    The XCR's hammer was updated in July 2008 concurrent with the release of the 7.62×39 rifles/kits. The new heavier design allows the XCR to ignite some newer Wolf 7.62×39 ammunition made with extra-hard primers. [15] In early 2009, Robinson began shipping rifles with an integral winter-style trigger guard and new paddle style safety. A ...