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Mfg Item #: 55DDF0A
Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. - 5.56x45 NATO Chamber - 12.5 - Multi Role Profile - 4140 Chrome Moly - Salt Bath Nitride Finish inside and out - 1:7 Twist - Threaded 1/2-28 - Carbine length gas port - .750 Gas Journal
ATTENTION: If you are ordering the last of an available quantity and you do not check with an associate of Crossroads Firearms before placing your order. You may be at risk of getting a full refund/ cancellation if our in house inventory or distributors are out of stock before your online order has been processed.