The CQBR was once only available to Naval Special Warfare units (and by extension, other US Special Operations Forces units), but the Mk 18 MOD 0 has become general issue for Visit, …

The CQBR, designated Mk 18 Mod 0, is a variant of the M4 family of carbines. Designed for Close Quarters Battle (CQB), the CQBR is significantly shorter than its M4 / M4A1 cousins, with a …

The 10.5" CQBR upper receiver for the MK18 Mod 0 brings serious military-grade power and legacy to your weapon. Purchase today from Charlie's Custom Clones.

Apr 5, 2008 · The Colt CQBR (Close Quarter Battle Receiver) consisting of the Lewis Machine and Tool back-up sight and SOPMOD stock, Knight’s Armament RAS with rail protectors, …

Mar 16, 2014 · Just as the Special Purpose Receiver morphed into the Special Purpose Rifle, and was type-classified as Mk 12 Mod 0/1, the complete CQBR-equipped carbine has been type …

Cloners can build three MK12 variants: the original MOD 0 used by SOF during the early years in Afghanistan; the MOD 1, which was adopted by regular Army; and the shorty version, the …

In the world of firearm upgrades, the Potomac Armory Mk18 Mod 0 5.56 NATO Upper Receiver Group CQBR offers unparalleled quality and performance. Exclusively assembled by Potomac …

Jul 14, 2016 · So there's some clout in calling it a Mk18 Mod 1, or a Block II CQBR. Yeah, it's clear as mud. But to be very general, you can think aboot it this way: Mk18 Mod 0: A1 lower …

Mk18 Mod 0 SOCOM enhanced upper receiver group - 10.3" CQBR This is a Mk18 Mod 0 CQBR with enhancements. We started with a mil-spec Mk18 upper receiver group, and removed the …

The Close Quarter Battle Receiver (CQBR) is a replacement upper receiver for the M4A1 Carbine. The CQBR replaces the M4 with a barrel 10.3 in (262 mm) length, making it the …