I do some shooting with the Primary Weapons Systems Mod 2 Enhanced Buffer Tube with ratchet lock castle nut and end plate on my home built AR-15. I go over the properties of the kit as well as what I think of it overall.
Kit link at Brownells: https://goo.gl/DYI7A6
USAF Sweatshirt: http://amzn.to/2ocuaRS
Music by Youtube Creators & Machinima Sound