The MCX-Spear LT takes the features of the MCX Gen1 and MCX Virtus and refines them to create the most evolved modular rifle system to date.

The barrel utilizes a carbine length gas system with a.

56 NATO (5. Take note of the seamless transition between the upper receiver and MLOK handguard.

However, the Faxon Firearms M16 Bolt Carrier Group is without equal.


. Army's new XM7 rifle. 223 Remington) / 300 Blackout (7.


New! MCX-SPEAR. Then they heat treat, nitride finish, and put it through magnetic particle Inspection. Gas key is chrome lined and heat treated per GI specifications.

8% ten-year average annual TSR for the 63 A&D companies in our sample is higher than it was in the ten-year periods ending in 2016 (when the industry returned 9. Its 4 setting adjustable vent system is designed to relieve gas pressure while firing to dampen blowback and create longer dwell time when running a suppressor.


class=" fc-falcon">Functions with any cartridge based on the 5.

Barrel Extension w/extended feed. 56 NATO ammunition, the Bootleg four position adjustable BCG is forged from S7 Tool Steel with a Lithium Isonite finish for an ultra strong product with corrosion resistance and smooth operation.

56 Complete Bolt Carrier Group is designed to work easily and reliably in any AR-15 or M16 rifle chambered in 5. fc-falcon">Daniel Defense 5.

56x45mm, 300 AAC Blackout or.

In Stock.


We offer BCGs from brands like Palmetto State. You can find AR-15 BCGs from brands like Palmetto State Armory, Cryptic Coatings, Toolcraft, and Faxon Firearms, to name a few. .

. . The image below gives a nice breakdown of the parts in a typical BCG. . Palmetto State Armory has a large selection of complete AR-15 bolt carrier groups to help you complete your build.

Product Specifications.

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AR-15 Bolt Carrier Groups.


M16-style carrier on the black phosphate model has full-length shroud for tripping auto sear, so this carrier may be installed on full-auto law enforcement and military rifles.