Ar Mag Lock Ar Maglock Ar-10 308 Gen 4 Narrow Rec
AR Maglock Gen 4 AR-10 - .308 - Narrow Rec Width/Shorter Length Shaft - For narrow width .308 receivers - Use this one if you possess Aero Precision M5, DPMS, S&W M&P, Troy, Wilson Combat, CMMG Mk3, L...