Kratos Design Group AR-15 A5 8-Position Receiver Extension Tube - Black

The Kratos Design Group A5 Length Receiver Extension is a replacement buffer tube for AR-15/M16 rifles with mil-spec collapsible stocks. It's slightly longer than a standard M4 receiver extension to accommodate rifle-length recoil springs and A5 buffers. This extended length allows for the use of eight adjustable stock positions for a customized length of pull.Features: Mil-Spec compatible replacement buffer tube for AR-15/M16 A5 compatible: Works with VLTOR A5 or A5 compatible buffers & rifle length recoil springs 8-position adjustment for customized length of pull Impact-extruded 7075 aluminum construction for durability Type III Class 2 hardcoat anodized finish UN-2A threads for secure attachment Weight: 4.3 ounces Color: Black Made in USA Made from high-strength, impact-extruded 7075 aluminum with a Type III Class 2 hardcoat anodized finish, the Kratos A5 Receiver Extension is built for durability. It weighs 4.3 ounces and features UN-2A threads for secure attachment to your lower receiver. Manufactured in the USA, this receiver extension is a reliable choice for upgrading your AR-platform rifle.