![]() ![]() A beneficial side effect of the long barrel is that the propellant is completely burned before the bullet leaves the barrel, usually resulting only in a puff of smoke from the muzzle. Pre-20th century rifle designs tended to have longer barrels than modern rifles. ![]() While the former is intended to reduce visible flash, a muzzle brake is designed to reduce recoil inherent to large cartridges and typically does not reduce visible flash. ![]() Ī flash suppressor is different from a muzzle brake, although they are typically mounted in the same position and sometimes confused with each other. Contrary to popular belief, it is only a minor secondary benefit if a flash suppressor reduces the intensity of the flash visible to the enemy. Its primary intent is to reduce the chances that the shooter will be blinded in low-light shooting conditions. Detail of the birdcage-type flash suppressor on a SIG SG 550Ī flash suppressor, also known as a flash guard, flash eliminator, flash hider, or flash cone, is a muzzle device attached to the muzzle of a rifle that reduces its visible signature while firing by cooling or dispersing the burning gases that exit the muzzle, a phenomenon typical of carbine-length weapons. Schlieren imaging reveals the heat and pressure gradients invisible to standard imaging. Exhaust gas light-dimming gunbarrel attachment Bullet exiting an A2-style flash suppressor, photographed with a high-speed air-gap flash This image was taken from a high-speed Schlieren video of a flash suppressor. ![]()
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