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  2. Adaptive Combat Rifle - Wikipedia

    en.wikipedia.org/wiki/Adaptive_Combat_Rifle

    The rifle is available with four barrel lengths and can be easily converted from a standard rifle (with a 16.5 inch barrel) into a carbine (with a 14.5 inch barrel), into a compact rifle (with a 10.5 inch barrel), or into a designated marksman rifle (with an 18-inch barrel) without any tools. Barrel lengths of the two calibres are exactly the same.

  3. Barrel threads - Wikipedia

    en.wikipedia.org/wiki/Barrel_threads

    For example, factory and aftermarket receivers using the Remington 700 footprint are produced with various types of action threads, all with a 26.99 mm (1 + 1 ⁄ 16 in) diameter, but with a pitch of either a 1.588 mm (16 TPI, Remington standard), 1.411 mm (18 TPI) or 1.270 mm (20 TPI, Savage standard).

  4. Comparison of the AK-47 and M16 - Wikipedia

    en.wikipedia.org/.../Comparison_of_the_AK-47_and_M16

    The M16s sling is not only used to carry the rifle, but also to help support and stabilize the rifle while shooting, to allow for more accurate fire. [329] "When the rifle sling is adjusted properly, it will provide maximum stability for the weapon and help reduce the effects of the rifle's recoil.

  5. Accuracy International Arctic Warfare - Wikipedia

    en.wikipedia.org/wiki/Accuracy_International...

    The rifle is fitted with a 27 in (686 mm) long .338 in (8.6 mm) calibre free floating fluted barrel as standard. The AXMC has a non conventional 238 mm (1:9.35 in) twist rate to adequately stabilise longer, heavier .338 calibre very-low-drag projectile designs that became more common in the 21st century.

  6. RK 62 - Wikipedia

    en.wikipedia.org/wiki/RK_62

    M/82 – a bullpup prototype assault rifle using the RK 62 76 receiver. [3] RK 71 – a stamped steel receiver rifle, which has a different sight layout from the RK 62: rear sight is an open notch with distance adjustment welded on the gas tube and front sight is at the front end of the barrel, behind the flash suppressor. The internal parts of ...

  7. List of screw drives - Wikipedia

    en.wikipedia.org/wiki/List_of_screw_drives

    Pentalobe screw sizes include TS1 (also known as P2 or 0.8 mm, used on the iPhone 4 and subsequent models), TS4 (also known as P5 or 1.2 mm, used on the MacBook Air [since late 2010], the MacBook Pro with Retina Display and the 2015 MacBook) and TS5 (also known as P6 or 1.5 mm, used on the 2009 MacBook Pro battery).

  8. List of modern Russian small arms and light weapons

    en.wikipedia.org/wiki/List_of_modern_Russian...

    "3-line rifle" "Mosin rifle" 7.62×54mmR: 1891–present still used by some militia forces sniper rifle commonly used by police and military snipers 1891 infantry 1891 dragoon 1891 cossack 1891/1910 1891/1930 1891/1952 KGB sniper 1907 carbine 1938 carbine 1944 carbine Russia Soviet Union: SV-98: 7.62×51mm NATO 7.62×54mmR.338 Lapua Magnum ...

  9. ISO metric screw thread - Wikipedia

    en.wikipedia.org/wiki/ISO_metric_screw_thread

    A metric ISO screw thread is designated by the letter M followed by the value of the nominal diameter D (the maximum thread diameter) and the pitch P, both expressed in millimetres and separated by a dash or sometimes the multiplication sign, × (e.g. M8-1.25 or M8×1.25).