Smith Defense AR-9/45 Mil-Spec Buffer Tube Kit
Building a new AR-9/45? Fantastic. You'll probably need a buffer tube kit for that then. Instead of sourcing your parts from separate places, opt for this convenient kit that has everything you'll need to complete your 80% AR-9 lower receiver or 80% AR-45 lower receiver. All the parts are mil-spec so you can build without worrying about parts compatibility. Please note that this buffer tube kit is specifically designed for the AR-9 and AR-45 platform as the buffer weight is 7.5 ounces and made to withstand or properly cycle with the blowback from when a round is fired.
Features
- Mil-Spec 6 Position Buffer Tube
- 7.5oz AR-9 Buffer Weight
- AR-9 Buffer Spring
- Steel Castle Nut
- Steel End Plate