I have 2 used Colt M16 BCG's complete w/MP tested bolts and properly staked gas keys. Both have new gas rings and extractor springs with Viton o-rings. Round count is unknown but there is nothing at all wrong with either of them.
I'm looking to get $325 for both SPF and Ill cover shipping to CONUS.
USPS M/O Only.
Please IM me for Payment arrangements.