[Parts] Expo Arms 5.56 Complete M16 Bolt Carrier Group - Nitride - $42 + S/H (Sale Price)

Posted by Projekt8276-1@reddit | gundeals | View on Reddit | 70 comments

Just bought this for my first build but I noticed It has 3910 bolt steel and ive heard mixed opinions on that. Already bought it, should I be prepared for horrible performance?