You must carefully approach your desired index point and stop.īacking up because you overran your index point is not acceptable.Ī new AR 15 crush washer should be "crushed" from finger-tight for at least 90° and not more than 460°īasic "How To". The purpose of an AR 15 crush washer is to collapse to allow proper indexing of the muzzle device and to keep tension on the MD similar to a lock washer so that the MD does not loosen. The small contact area goes toward the receiver and the large contact area goes toward the muzzle device. Guess it works either way.Ī crush washer can also be referred to as a "tension washer". Just checked the Brownells video and it shows the opposite way of YHM. I've always done it the other way and that's the way I've seen it done. Whether it takes 5 degrees or 160 degrees it's all good.Ĭonical or pointy side is supposed to go towards the gun. You now should have a full 360 degrees to use a wrench and tighten it down to the proper timing. Hand tighten the flash hider against the crush washer. The birdcage design of this A2 flash hider eliminates the prongs on other configurations, making it more user-friendly and less likely to get caught on clothing or vegetation.Place the crush washer on the barrel, conical side facing out. Some flash hiders have prongs on the end as part of the design. Operators will still be required to change position to prevent the enemy from zeroing in. my barrel clamp is made of aluminum so its softer than. you could rap a piece of thick leather around the barrel to protect it and clamp it in the vice just be careful not to mar the barrel up. Those who engage in nighttime operations should be aware that no flash hider completely eliminates flash signature. ETA, also you want to use barrel vise jaws to hold the barrel while tightening the flash hider, never use the barrel extension pin and upper to do this. The A2 flash hider will redirect the flash to the side and away from the shooter's line of sight, thereby preserving night vision. Overall length approximately 1.75 inches. The end result is a blinding pyrotechnic-strength flash that can very effectively blind the operator in night conditions. Standard AR15 A2 Flash Hider Screws on to your threaded barrel. With a shorter barrel, however, the powder has less space to burn before blowing out of the muzzle. When a bullet is fired from a long barrel, most of the powder is burned out before the bullet exits the barrel. The problems of visible firing signatures became apparent with the advent of the modern rifle with a shortened barrel. Unlike flash hiders, the primary purpose of a muzzle brake is to reduce recoil in firearms that use large caliber cartridges. The primary purpose of the birdcage flash hider is to benefit the shooter, although reduction of visible flash to the enemy is an additional bonus.įlash hiders are not the same as muzzle brakes, although some muzzle brakes also double as flash hiders. Flash hiders work by cooling and/or dispersing the burning gases, thereby protecting the shooter from becoming blinded by his own gun in low-light shooting conditions. What Does This A2 Flash Hider Do?įlash hiders (also known as flash eliminators, flash guards, flash cones and flash suppressors) reduce the visible signature caused by the gases exiting the barrel at high speeds. Made in the United States of America, this high-quality birdcage flash hider will give your rifle that finishing touch. This A2 flash hider is designed to fit 5.56/.223 caliber barrels with ½-28 TPI (Threads Per Inch). 223/5.56 barrel with 1/2"-28 thread pitchĪero Precision's classic A2 style birdcage flash hider will help protect you from becoming blinded should you ever be firing your rifle in a tactical situation at night. Finish: Mil-Spec Heavy Phosphate finish.Classic Mil-Spec A2 birdcage flash hider.
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