Muzzle Brake Blanks

1 OD 11/16×24 TPI with 7/16 Through Hole, 1 OD 3/4×24 TPI with 1/4 Through Hole, 1 OD 3/4×24 TPI with 7/16 Through Hole, 1 OD 5/8×24 TPI, 3/4 OD 1/2×28 TPI, 3/4 OD 1/2×32 TPI, 3/4 OD 9/16×24 TPI