PSA BCG Nickel Boron: The Ultimate Upgrade for Your AR-15 Bolt Carrier Group
The Backbone of Your Rifle: Understanding the Bolt Carrier Group Components of the BCG The Bolt Carrier Group is the workhorse of your AR-15, the mechanism responsible for the entire firing cycle. It’s a precisely engineered assembly that encompasses several key components working in perfect harmony. It needs to extract a fired case, eject it, … Read more