LOWER RECEIVERS - PARTS - KITS
AR15 Lower Receivers - AR10/LR308 Lower Receivers - Lower Parts
The AR15 or AR10/LR308 lower receiver houses the fire control group and attaches the buffer/stock assembly, the grip and the upper assembly. There are no compatibility issues between AR15 lower receivers and AR15 upper receivers - any AR15 lower will assemble to any AR15 upper. The AR10/LR308 platform is less standardized so the AR10/LR308 lower receiver pattern must match the upper receiver. The two most popular AR10/LR308 patterns are DPMS (LR308) and Aero Precision M5 (AR10). When you purchase an AR15 or AR10/LR308 lower receiver, AR15Parts.com will initiate an FFL Transfer to a FFL Dealer you specify at checkout. If you have any questions about upper receiver / lower receiver compatibility or the FFL Transfer process, call our friendly customer service team at 888.706.0633.
AR15Parts.com stocks AR15 and AR10/LR308 lower receivers from top US manufacturers including Aero Precision, Anderson Manufacturing, ZRO Delta, and others.