HI, I just invested in an M&P 15 / 5.54 and really enjoy it's accuracy and ease of use. I'm in Mass so it was not sold with a muzzle brake or suppressor nor does the barrel threading to accept one of several brakes available on line. I'd rather not have to take to gun smith to have barrel threaded. Midway sells an adapter with four set screws that one can secure to outside of barrel as a way of attaching brake or suppressor.
I have one for my M&P 15-22 that works great but the adapter does NOT fit the M&P 15 whose barrel has a slightly larger diameter.
Does anyone one where I can purchase an adapter for my M&P 15?
Thanks !