14-1 LH Thread For 7.62x39
CNC Machined High Quality Steel
Heat Treated
Competition Muzzle Brake
Solid Machined Construction
Black Oxide Finish
Reduced Back Pressure
Muzzle end OD : 1 inch , Barrel end OD 0.8"
Length of the muzzle brake ( with thread ) : 2 3/8 inch
Weight: 4.3 oz