Features:
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Ops Inc Muzzle Brake Kits for their 12th Model Suppressors
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Includes muzzle brake, thread protector, collar and crush washer
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Same system used on U.S. military SPR rifles
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Collar fits over first barrel step and secures via set screw
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Steel construction
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Matte black finish
SPECS: Steel construction, matte black finish. 223 – ½-28 threads. 308 – 5/8-24 threads.