beeks Posted May 27, 2015 Report Share Posted May 27, 2015 I've very strongly considering building an AR-308 to M110 specs. I want it to be NRA service rifle legal. I am a machinist and plan on making the quad rail to help keep costs under control. I haven't started buying parts yet. I'm new to the AR platform and there are more than a few things I need to learn. My first question is what is the round boss for that angles back out of the right side of the upper receiver on most AR's (that the M110 doesn't have)? If you were to build a rifle like this, what are the cheapest parts would you use? Quote Link to comment Share on other sites More sharing options...
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.