I have Sig 716 AR10 that has a stock adjustable buffer tube. In order to put a magpul PRS stock I have to convert to a fixed length buffer tube, so I will need to buy a new tube, buffer, and spring. The whole project was to be able to put my BT monopod on the gun. It just keeps getting deeper and deeper. I am trying to figure out if making these changes will effect the performance. I already have the PRS stock but could return if needed. For $500 I can buy a lot of rear bags..
Remember I don't know shit about black guns. I was told by magpul that I would need a longer spring and longer buffer.