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mk18 barrel
The Close Quarter Battle Receiver (CQBR) is a replacement upper receiver for the M4A1 Carbine, developed by the US Navy. The CQBR features a barrel 10.3 in (262 mm) in length, similar to the Colt Commando short-barreled M16 variants of the past. This shorter barrel makes the weapon significantly more compact, which makes it easier to use in and around vehicles and in tight confined spaces. Special units such as commandos boarding ships and bodyguards for senior officers have found such shortened weapons very useful and use the CQBR.
Its preliminary National Stock Number was 1005-LL-L99-5996; however, a complete CQBR-equipped carbine now has the NSN 1005-01-527-2288. The overall length of the upper receiver is 19.25 inches (489 mm). With the stock retracted, the overall length of the weapon is 26.75 inches (679.4 mm).
New 11.5"* BCM BFH barrel with F height FSB, BCM Flash hider and GI barrel nut (pull off)
Never fired
Polished feed ramps
Barrel marked
1/7 twist MPI
*All NFA rules apply
Does not include FSB post or spring
I take PayPal friends and family
Shipping OK, S/H 4.99
No trade requests please...
Testing waters on this.
bcm BFH factory upper with a swapped 10.3 DD mk18 barrel. Never fired.
For the complete upper w/ bcg/ch/mbus pro irons and hand stop and nothing else- 700
For the complete upper with all listed above plus 1k lumen streamlight light with tape switch and aimpoint pro...
This is a take-off from a Brownells MK18 upper. Never fired, new condition. It should have the .070” gas port since it was purchased in 2019, post the gas port size change that DD did in mid-2017.
Comes with MK12 gas block and carbine gas tube installed.
Asking $300, willing to ship and...
Brand new 10.5 AR15 barrel for sale. aero precision.
Nitrided, M4 feed Ramps, never installed, never shot, never even had fingerprints, brand new 10.5” 5.56 NATO QPQ Aero barrel. Excellent shape, not a single flaw that I can find. Decided to go with a 12.5 or id keep it. Perfect for a Mk18...