Product Description AR-15 Muzzle Brake, M16 Bird Cage A-2 Style for 7.62/.308/.300 Blackout, With Crush Washer AR-15 A-2 Style Bird Cage, 7.62/.308/.300 w/Crush Washer, 5/8 X 24 Thread Pattern at Classic Firearms Browse all Classic Firearms deals $7.34 In Stock at Classic Firearms Buy Now at Classic Firearms Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Other MPN 150-030-MAR060B-MZ1001-3B Accessories Other