Spike's Tactical is a US based AR manufacturer which creates high quality parts, uppers, and complete rifles. Every component is manufactured to Mil-spec standards and is backed by the Spikes Tactical lifetime warranty.

This is the same lightweight BCG that Spikes Tactical uses in their builds and it is coated with the most durable finish on the market, nickel boron. Smoother and harder than hard chrome, it allows this bolt carrier group to be run almost lube free for thousands of rounds. It is being adapted by the US military and many government agencies as a standard for their BCGs.

Features and Specifications:
Manufacturer Number: ST5BG05
Spike's Tactical Complete Lightweight Nickel Boron Plated M-16 BCG
High pressure tested
Magnetic particle inspected
M-16 profile
158 Carpenter steel bolt
8620 tool steel carrier and gas key
Holes for Reduced Weight (-1oz)
Nickel boron coating inside and out
Gas key properly staked
Bolt is shot peened and HPT/MPI
M-16 profile (will NOT make an AR-15 fully automatic)
Weight: 10.5 oz

Fits:
.223, 5.56, .300 BLK