The bolt carrier group serves as the heart of the AR-15, managing the critical tasks of chambering, firing, extracting, and cycling rounds. For shooters building or upgrading their rifle, selecting a reliable bolt carrier group is essential, and one name consistently emerges in AR-15 discussions: Microbest. At Dirty Bird Guns & Ammo, we offer three … Continue reading Microbest Bolt Carrier Group – The Best for Your Next Build?