AAC 51T blackout flash hider / suppressor mount 5/8x24 threads. For 7.62/.308 caliber. I bought a MPW in .300 AAC new and since I already have a gemtech HVT that requires it's own mount so this is not needed. I bought the special tool to take it off so there are no removal marks and looks nearly brand new. Add an extra 8 bucks for shipping.
