KAK Industry A2 Birdcage Flash Hider Features The KAK Industry A2 Birdcage Flash Hider follows the enduring A2 pattern that has completed AR-15 uppers for decades reducing visible muzzle flash so the shooter retains better sight picture and low light vision after firing. Its birdcage style vents direct gas and flash away from the line of sight a design that has proven itself across generations of AR-platform rifles. Threaded at a standard 1/2x28 pitch it fits directly onto 5.56 NATO chambered AR-15 barrels using that thread specification though a crush washer is needed separately to properly index and time the device. Milled flats along the body give an armorer s wrench a secure grip for straightforward installation without marring the finish. Heat treated during manufacturing the A2 Birdcage gains added resistance to the heat and stress of repeated firing helping it hold its shape and function over the life of the rifle. Its Black phosphate coating adds a layer of corrosion resistance while matching the classic look most AR-15 owners expect from this muzzle device. At 1.75 inches in overall length it keeps the rifle s total length close to factory specifications rather than adding unnecessary bulk to the muzzle end. For AR-15 builders looking for a dependable classic muzzle device to finish out their upper the KAK Industry A2 Birdcage is a proven affordable choice. KAK Industry A2 Birdcage Flash Hider Specifications Manufacturer: KAK Industry Model: A2 Birdcage Flash Hider Type: Flash Hider Compatible Hosts: AR-15 Caliber: 5.56 NATO Muzzle Threads: 1/2x28 Color: Black Finish: Phosphate Material: Steel Overall Length: 1.75 Weight: 0.132 lbs Available At: GrabAGun