CMMG Barrel Assembly, 16.1″ M4 4140CM SBN, 5.56mm

$229.95 $189.95

2 in stock


Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension, barrel nut, hand guard cap, pinned “F” marked front sight base, sling loop, and front sight post. All barrel assemblies are properly headspaced.

M4 Profile Barrel
Gun Quality 4140 Chrome Moly
Salt Bath Nitride Finish inside and out
1:7 Twist Rate
5.56×45 NATO Chamber
Threaded 1/2-28
Carbine length gas port
.750″ Gas Journal
“F” Marked Front Sight Base



There are no reviews yet.

Be the first to review “CMMG Barrel Assembly, 16.1″ M4 4140CM SBN, 5.56mm”

Your email address will not be published. Required fields are marked *