Description
Finish your AR-10 build or upgrade your old one with the Guntec USA .308 bolt carrier group. This BCG is designed for tough use with its hardened steel bolt, firing pin, and extractor that won't break under stress. The carrier is made from 8620 steel and has a Nickel Boron coating that is harder than chrome and more slick allowing you to shoot longer between cleaning. It also makes cleaning easier as the carbon buildup will simply wipe off. The gas keys are also properly staked to ensure it won't back out over time. This drop-in bolt carrier assembly is easy to install and offers a dramatic improvement over Mil-Spec parts.
Made for 7.62X51 / 308 Cal
Hard Nickel P+ Finish
HPT/MPI Tested and Marked
9310 Hardened Steel Bolt,
17-4 Stainless Steel Firing Pin (Heat treated to H900 Condition)
8620 carrier and gas key.
Hardened extractor S7 tool steel.
The group comes fully assembled wit
MPN: GT-BCG-308-NICKEL
