Rifle extension tube kit for an AR15
Armalight Rifle Length Buffer Tube
Armalight Rifle Length Buffer A1/A2
Armalight Rifle Length Buffer Spring
Same rifle extension tube for AR10s and AR15s
Mil-spec with an Outside Dimension of 1.145”-1.147”
Thread: 1-3/16 X 16
Receiver extension tubes use 6061-T1 extruded aluminum
Torque: 35-39 foot lbs