TOP KNIGHTS ARMAMENT SR-15 CQB 11.5 UPPER SECRETS

The Magna-Matic CRT-fifteen Carbon Elimination Device, is zinc-plated and not just removes carbon fouling in the bolt provider but within the tail with the bolt too.Also there are the buffer tube mounts for sling swivels (which appear to be a favorite of pat Roberts 6940s ) that don't manage to Identify the sling place that much from the KAC place