7.62x39 C.A.P.S. Carbine Piston Upper with Magpul MOE M-Lok Handguard

A: Yes you can. Upon checkout put in OD green handguard and we will get an OD Green on order, during this time we will build up the upper and test fire and then put on the OD Green handguard and ship out. Usually takes about 3 to 5 days to get in a special order, but uppers are built to order and usually take a few days to build up and test fire anyways. As for bolt carrier group. The bolt carrier is nickel boron and the bolt assembly is melonited.

A: Our 7.62x39 Piston Uppers will fit any mil-spec lower. We have never used the bump fire stock(s) as we are a Class 2 manufacturer so we run machine guns, so I can't attest to the reliability, but I have heard of other customers who have run them.

A: 7.62x39 CAPS CARBINE Piston Uppers recommendation for buffer/spring: Standard Buffer and Carbine Spring or
H2 Buffer and Carbine Spring

Barrels twist rate is 1:9.5

We do not have buffer tube, buttstocks or springs for sale at this time. We do recommend Del-ton or MidwayUSA for such products until we expand our own product line to include such items. Thank you.