This receiver extension builder kit is just that, pick your own parts and build the kit you want. The base kit starts off with a 7075-T6 extension tube.
Included in this kit is the following:
- Extension Tube is CNC Machined from 7075-T6 Aircraft Grade Aluminum with Precisely Rolled Threads for Durable Thread Engagement with Lower Receiver. (Base Kit)
- Finished in a Matte Black Type III Class II Hard Coat Anodize
- Stainless Steel Carbine Buffer Spring or one of the Sprinco choices.
- Buffer of your choice.
- End Plate of your choice
- Castle Nut of your choice.
- All components 100% Made in the USA from domestically-sourced metals by hard working American men and women.
ITAR: International Traffic in Arms Regulations Controlled Product