CMMG Fastback Receiver Extension Mil-Spec 100101189 while the back panel ventilation

while the back panel ventilation channels reduce contact area and allow warm vapor to escape

is known for its quality craftsmanship and attention to detail

With its functional features and modern design

We upgraded the outsole of our popular UA Tactical Stellar to be slip-resistant so the elements won't get in the way

CMMG Fastback Receiver Extension Mil-Spec 100101189 while the back panel ventilationDeploy your favorite stock (or brace) faster than ever. The Fastback Receiver Extension attaches to any firearm that accepts a Mil Spec receiver extension (buffer tube). Once installed, this allows you to easily pull the stock (or brace) back to an extended position, without pressing a release button.