2A Armament Lightweight Adjustable 5.56/300 AR-15 Bolt Carrier Group

Manufactured by 2A Armament
Manufactured by 2A Armament
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The 2A Armament Regulated Bolt Carrier (RBC) is the first of its kind, combining an exceptionally lightweight carrier group with the capability to make on-the-fly changes to your gas system. The RBC allows shooters to tune their rifle to minimize felt recoil and maximize reliability, without requiring stripping your upper receiver in order to replace a standard gas block with an adjustable model. Further, unlike most adjustable gas blocks, the RBC can be readily adjusted through the ejection port removing the need to break down the rifle.

This premium carrier is precision machined from 8620 steel that has been heat treated and finished with a QPQ nitriding process. The Salt Bath Nitride treatment provides an extremely slick surface that reduces friction in the receiver and is easy to clean. The bolt tail is 7075-T6 aluminum with a clear hardcoat anodizing to further reduce bolt mass, allowing the complete carrier group to come in at less than 8 ounces fully assembled. A titanium regulating gate and standard MIL-SPEC 9310 steel bolt assembly rounds out the carrier group for maximum reliability.

A T-6 Torx tool is required for adjustment, but not included.
This BCG is not compatible with forward assists.


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Bolt FinishSalt Bath Nitride
Bolt Material9310 Steel
Brand2A Armament
Caliber Gauge5.56 NATO
Carrier FinishSalt Bath Nitride
Carrier Material8620 Carpenter Steel
Carrier StyleLow Mass Bolt Carrier
High Pressure TestedUntested
Magnetic Particle InspectMagnetic Particle Inspected
Manufacturer.2A Armament
Weight7.9 Oz

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

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