Forward Controls Design Stoner 63 LMG Style Flash Hider w/Crush Washer 1/2x28 Nitride Black. It is inexpensive and does a decent job of what's asked of it. Forward Controls Design went through a phase of expensive and fancy brakes and comps all of them have worked well but Forward Controls Design knows they're not practical for defense/duty ARs. The flash noise and concussion they produce are the result and byproduct of reducing the felt recoil (brakes) and keeping the muzzle down (comps). Threaded for 1/2x28 precision machined from solid steel bar stock and black nitrided it is probably the finest A2 style comp/flash suppressor ever produced. Its 3 and 9 o'clock ports are 25percent smaller (shorter and narrower) than the other three upward facing ports so more gas is vented through the upward facing ports it is a superior compensator to the A2 its flash suppression is equal to that of an A2. 6315 is compatible with M16 BFA and most A2 mounted sound suppressors. Since Forward Controls Design now has more room in front of the 3 and 9 o'clock ports we incorporated wire cutter alignment notches ahead of these ports. The wire cutter notches will probably earn us some flak and endless ribbing about having to cut wires at the range while punching holes on paper but Forward Controls Design always designs combat features into their products they're there you don't have to use them. 6315 is a light (2.12oz) and short blended performance muzzle device. It provides 15 to 20percent better muzzle rise compensation than the A2 and what is impressive is that it does so without sacrificing its flash suppression capabilities or creating more noise and concussion. The number 63 in its name pays homage to the Stoner 63 light machine gun the shape of its ports draws heavily from the Stoner 63 LMG's flash suppressor design. 6315 is a part of Forward Controls' x15 muzzle device series. Your shooting buddies will enjoy shooting next to you much more once you replace the brake or comp with something that won't remind them of their days in artillery that it also agitates the snowflakes is priceless. Specifications for Forward Controls Design Stoner 63 LMG Style Flash Hider w/Crush Washer: Manufacturer: Forward Controls Design Color: Black Finish: Nitride Fabric/Material: Steel Threads per Inch: 1/2x28 Gun Make: AR Platform Gun Model: M16 AR-15 Weight: 2.12 oz Package Contents: Forward Controls Design Stoner 63 LMG Style Flash Hider w/Crush Washer What firearm models does the manufacturer say Forward Controls Design Stoner 63 LMG Style Flash Hider w/Crush Washer is compatible with? The manufacturer says that Forward Controls Design Stoner 63 LMG Style Flash Hider w/Crush Washer is compatible with AR-15 M16Forward Controls Design 6315: Stoner 63 LMG Style Flash Hider w/Crush Washer 1/2x28 Nitride Black