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, LMT, JD Machine, SLR Rifleworks, Windham, Stag Arms

Manufacturer: AR MAG LOCK

Model: LOC308GEN4N

The AR Mag Lock (ARML) is a device designed to comply with certain firearm laws and regulations, particularly those that restrict the detachability of magazines in AR-15 and AR-10 style rifles. It is commonly used in California and other states with similar firearm regulations.

The AR Mag Lock replaces the standard magazine release button on the firearm with a locking mechanism. This modification prevents the quick removal of magazines, making it compliant with laws that require fixed magazines for semi-automatic rifles.

The AR Mag Lock is available in various versions and generations, with each iteration offering improvements and refinements. The "AR Mag Lock AR-10 308 Gen 4 Narrow Rec" appears to be a specific model designed for AR-10 pattern rifles chambered in .308 Winchester or 7.62 NATO.