Foxtrot Mike Mike-9 9mm AR-15 Bolt Carrier Assembly

The Foxtrot Mike MIKE-9 BOLT CARRIER ASSEMBLY delivers a precision-fit, 9mm Luger option for AR-15 platforms, designed to optimize reliability and cycling performance for dedicated pistol-caliber builds. Crafted in a Black Nitride finish for enhanced corrosion resistance and reduced wear, this bolt carrier assembly pairs seamlessly with AR-15 receivers and compatible cartridges to deliver smooth, consistent operation under varied conditions. Precision-managed tolerances and a purpose-built design support reliable chambering, extraction, and bolt lock-back, helping shooters maintain steady shot cadence whether in a range session or field scenario. The MIKE-9 BC is optimized for 9mm Luger ammunition workflows, providing predictable ejection and reduced carrier friction that translates to cleaner run-out and easier maintenance. Its robust construction and material quality are tailored to steady performance across repeated magazine changes, fast transitions, and high-volume shooting. Built to meet the expectations of serious enthusiasts, this component makes it possible to configure a versatile AR-15 platform around a compact, efficient 9mm action, enabling practical, accurate, and economical practice and operation with standard handgun calibers.