PRE-ORDER: Currently our muzzle devices and HUB adapter are being sold on pre-order status. We have sold out of our first production run of these parts, but our machines are scheduled to make more over the next 3 weeks.  We will ship your orders on a first come first served basis.We promise it'll be worth the wait!ABOUT:The DEFENDER 2 Port Muzzle Brake by Siege Suppressors is compatible with Q Plan B mounts. The Defender will allow pin and weld to a 14.5" barrel to reach 16" in length. It is not long enough to reach 16" when pinned and welded to a 13.7" or 13.9" barrel.SPECS:Caliber: 5.56mm (.280 Bore, NOT 9mm)Thread Pitch: 1/2x28Finish: Black NitrideWeight:  

PRE-ORDER: Currently our muzzle devices and HUB adapter are being sold on pre-order status. We have sold out of our first production run of these parts, but our machines are scheduled to make more over the next 3 weeks.  We will ship your orders on a first come first served basis.We promise it'll be worth the wait!ABOUT:The DEFENDER 2 Port Muzzle Brake by Siege Suppressors is compatible with Q Plan B mounts.The Defender will allow pin and weld to a 14.5" barrel to reach 16" in length. It is not long enough to reach 16" when pinned and welded to a 13.7" or 13.9" barrel.SPECS:Caliber: 7.62mm (.340 Bore)Thread Pitch: 5/8x24Finish: NitrideWeight: