The Alexander Arms Tank Muzzle Brake uses a unique design based artillery brakes and uses two large impingement baffles in an open form construction to achieve probably the best recoil reduction for the 50 Beowulf brakes at subjectively 40% to 50%. Blast is directed sideways from the two opposite facing ports on each side. The unit is symmetrical in operation and does not provide reduction of muzzle jump. Back-blast to the shooter is negligible, but there is a noticeable blast to either side of the weapon. Please note that Alexander Arms tells us these brakes are only for use with 49/64"-20 threads of their specification. FeaturesUnique Artillery DesignTwo Large Impingement BafflesUp to 40-50% Recoil ReductionGas is directed sideways