Stern Defense Ar-15 Bu45 Bolt Carrier 45 ACP for Ar-15 Ax Auto

The Stern Defense AR-15 SD-BU45 BOLT CARRIER .45ACP BLACK delivers a purpose-built bolt carrier group designed for AR-15 platforms chambered in .45 ACP, providing reliable cycling and compatibility with AXX_45 Auto (ACP) cartridges. Crafted with a Black finish for durable protection and stealth concealment, this bolt carrier aligns with AR-15 receivers to ensure smooth feeding, extraction, and lockup timing, making it a solid choice for operators and enthusiasts seeking dedicated .45 ACP perform