UTG PRO AR15 6-position Receiver Extension Tube Kit, Mil-spec
The UTG Pro AR15 6-position receiver extension tube kits mil-spec diameter complete buffer tube assembly kit is made in the USA. This AR-15 M4 carbine complete buffer tube assembly kit includes a UTG Pro mil-spec 6-position diameter extension tube, recoil buffer, buffer spring, receiver end plate, and castle nut. The UTG Pro AR15 6-position receiver extension tube is CNC machined from 6061-T6 aircraft-grade aluminum with precisely rolled threads for durable thread engagement with the lower receiver on your AR-15 m4 carbine. This AR-15 buffer tube assembly kit underwent the tightest tolerance controls for a secure fit and function, with various collapsible mil-spec stocks to ensure reliability and function. Warranty Lifetime.
Specs: 6 Position Buffer Tube
Mil-Spec Diameter
Carbine Length
1 Carbine Buffer Spring
1 Recoil Buffer
1 Castle Nut
1 Receiver End Plate
UTG Pro Warranty Lifetime
