Forward Controls Design Flash Hider 1/2x28 Nitride Black. It is inexpensive and does a decent job of what's asked of it. We went through a phase of expensive and fancy brakes and comps all of them have worked well but we know 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 4140 steel bar stock heat treated and black nitrided it is based on our successful 6315 compensator/flash suppressor. Its 3 and 9 o'clock ports are angled up at 8 degrees and smaller than the 12 o'clock port so more gas is vented through the upward facing ports it is a superior compensator to the A2 its flash suppression is superior to that of an A2 thanks to its open ended design. 1815 is compatible with M16 BFA and most A2 mounted sound suppressors. Note that since 1815 does have flash suppression capability equal to that of an A2 it is to be treated as a flash suppressor for states that feel threatened by them such as CA MA and NY. As on the 6315 there's a wire cutter feature on 1815 the wire cutter notch is located at 6 o'clock and in conjunction with the 12 o'clock port can be used to line up and hold the wire. Also like the 6315 1815 is a light 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 18 in its name pays homage to the Armalite AR 18/180 the shape of its ports draws heavily from the AR18/180's flash suppressor design. 1815 is a part of Forward Controls' x15 muzzle device series. Due to the abbreviated length of the prongs 1815 will not ring or "ping" after each shot. Specifications for Forward Controls Design 1815 Flash Hider: Manufacturer: Forward Controls Design Color: Black Finish: Nitride Fabric/Material: 4140 Steel Threads per Inch: 1/2x28 Length: 1.8 in Weight: 2.12 oz Package Contents: Forward Controls Design 1815 Flash Hider Crush washer Forward Controls Design 1815: 1815 Flash Hider 1/2x28 Nitride Black