JMac Customs – RRD-4C 556 Muzzle Brake
RRD-4C “556” Muzzle Brake Compensator is a device specifically designed for the 556 caliber to reduce recoil, muzzle rise and flash while weighing less than 2oz! It is threaded 1/2″x28 with a 556 specific through hole and made of military grade 17-4ph stainless steel with a black nitride finish for the ultimate in erosion and corrosion protection. It adds 1.5″ to your rifle so it is a perfect candidate for pin/weld with a 14.5″ barrel.
Material: Military Grade 17-4PH Stainless Steel
Length: OAL 2.1″(53.4mm), Added length 1.5″ (38.1mm)
Weight: 2 oz, 56 grams
Finish: Matte Black Nitride
Caliber: .255″ bore will work with 5.56, and 5.45
Manufactured in the US and counts as 1 922r compliance part