Installed just fine. I just read one of the other reviews saying it was too short. I had issues with my bolt traveling to the rear far enough for the bolt catch to do its job. I trimmed 1/8in off the rubber bumper of the buffer and now it can travel far enough and it cycles just fine. However, I never thought about the tube actually being too short. Something to think about before you buy. I'm using a heavy Kaw Valley pistol buffer (7.5 oz) and buffer spring.
Reviewed by: (Verified Buyer) Scott Cranick from So IL on 11/25/2016