I'm putting together a build with an Aero M5E1 receiver set. The thing I'm looking for help on is has anyone ever heard of and/or had experience with this BCG?
Blacklist AR-10 Enhanced Nitride .308 Bolt Carrier Group
https://www.aimsurplus.com/product.a...p&groupid=2535
Blacklist AR-10 Enhanced Nitride .308 Bolt Carrier Group
https://www.aimsurplus.com/product.a...p&groupid=2535