BCM MIL-SPEC CARBINE BUFFER SYSTEM

Whether you’re assembling a BCM lower parts kit to complete a stripped lower or upgrading to a carbine buffer tube for your current rifle, this kit provides everything you need. It features an H1 buffer, carbine spring, and Mil-Spec castle nut and end plate, all crafted with the renowned BCM quality standards.

Specs:

-6-position receiver extension is machined from impact-extruded 7075-T6 aluminum alloy.

-Compatible with Mil-Spec dimension stocks.

-The receiver extension is hard coat anodized per Mil-A-8625F, Type III, Class 2.

-3.8 oz H1 buffer or 4.6 oz H2 buffer.

Made in the USA.