Material: Black Oxide Stainless Steel Construction
This is a Combo Set for 1/2"x28 9MM
Item #1: 5/8"x24 Muzzle Brake + Outer Sleeve Sound Forward
Item #2: 1/2x28 to 5/8x24 Muzzle Thread Adapter
Crush Washer Included
Item #2 Specs
Internal Thread: 1/2"x28 Female
External Thread: 5/8"x24 Male
Convert 1/2x28 to 5/8x24
This is a Combo Set for 1/2"x28 9MM
Item #1: 5/8"x24 Muzzle Brake + Outer Sleeve Sound Forward
Item #2: 1/2x28 to 5/8x24 Muzzle Thread Adapter
Crush Washer Included
Item #2 Specs
Internal Thread: 1/2"x28 Female
External Thread: 5/8"x24 Male
Convert 1/2x28 to 5/8x24