AR-STONER Extreme Duty Mil-Spec AR-15, LR-308 Buffer Tube Aluminum Matte

The AR-STONER(TM) Receiver Extension Extreme Duty Buffer Tube is made to perform in the harshest conditions. Rest assured the durable 7075-T6 aluminum construction will perform in all high stress situations when reliability is essential. The AR-STONER(TM) Receiver Extension Extreme Duty Buffer Tube features an 84% increase in tensile strength over the 6061 aluminum standard duty buffer tube. This 6-position buffer tube is a great option when upgrading an existing AR-15 or building a new LR-308 r