Ap rifle buffer kit - Aero Precision AR15 Rifle Buffer Kit

I put this on an AR build in 6mm ARC. I was having some issues with cycling and at one point the BCG got stuck in the tube. I switched out the spring and buffer for a captured system and have had no more issues. The buffer tube has a lug at the end so you can torque it down to the lower receiver. I would recommend buying the buffer tube alone and purchasing a different spring and buffer.