Bcn complete lower A1: Yes, the BCM PNT Bring about is integrated as Section of the lower receiver assembly, supplying a refined nickel teflon finish for Improved overall performance. The Mk2 upper receiver moves mass into thoughtful reinforcement on the front of the receiver, and the ejection port in particular. https://bravocompanylower46789.bloggerswise.com/35455334/bcm-lower-complete-secrets