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Barrel/slide locking is a simplified Colt–Browning design, similar to that found in many modern pistols (for example the SIG Sauer and Glock families of pistols); the breech end of the barrel is rectangular in shape, rather than rounded, and fits into matching locking grooves within the slide, near the ejection port.
Sights. Fixed and illuminated night sights. The Springfield Armory XD is a series of semi-automatic pistols produced by Springfield Armory, Inc., in the United States along with follow-on variants: XD-M, XD-S, and XD-E. [1] Polymer -framed and predominantly striker-fired, the series is manufactured by HS Produkt in Karlovac, Croatia.
Glock 41: The Glock 41 is a competition version of the Glock 21, much like what the G34 is in relation to the G17; it features a 5.3-inch barrel and an elongated slide. The Glock 41 is only made with the "Gen4" frame.
KRISS Vector CRB 18.6 inch barrel (Canadian version) The Vector CRB (carbine) is a semi-automatic carbine with a permanently affixed barrel shroud to the standard 5.5-inch barrel, extending it to 16-inch (410 mm), intended for states with short-barrel rifle bans, with an 18.6-inch (470 mm) version produced for the Canadian market.
Conventional eight groove rifling on the left, and octagonal polygonal rifling on the right. Polygonal rifling (/ p ə ˈ l ɪ ɡ ə n əl / pə-LIG-ə-nəl) is a type of gun barrel rifling where the traditional sharp-edged "lands and grooves" are replaced by less pronounced "hills and valleys", so the barrel bore has a polygonal (usually hexagonal or octagonal) cross-sectional profile.
A free-floating barrel is a firearm design used in precision rifles, particularly match grade benchrest rifles, to accurize the weapon system. With conventional rifles, the gun barrel rests in contact with the fore-end of the gunstock, sometimes along the whole length. If the stock is wooden, environmental conditions or operational use may warp ...
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 .
The .45 GAP (Glock Auto Pistol) or .45 Glock (11.43×19mmRB) is a pistol cartridge designed by Ernest Durham, an engineer with CCI/Speer, at the request of firearms manufacturer Glock to provide a cartridge that would equal the power of the .45 ACP, have a stronger case head to reduce the possibility of case neck blowouts, and be shorter to fit in a more compact handgun.