PRI Muzzle Brake Quiet Control 5.56mm 1/2"-28 Thread AR-15 Steel Matte

Precision Reflex MSTN QC Brake 5.56mm 223 Black. Specs: 304 Stainless .95in dia. X 2.05in long thread is 1/2in-28 The area over the threaded end of the brake tapers down to a .750in diameter. The brake comes with a selection of spacer shims to set the timing of the brake. The 3 holes should be at the 1 O'clock position when tightened into place. Tighten brake into place using a round screw driver in the 1st slot closest to the barrel. Specifications for Precision Reflex MSTN QC Brakes 5.56mm/223: Manufacturer: Precision Reflex Caliber: 5.56x45mm NATO .223 Remington Fabric/Material: Stainless Steel Threads per Inch: 1/2x28 Gun Make: AR Platform Outer Diameter: 0.95 in Length: 2 in Weight: 3.6 oz Included Accessories: Spacer shims Diameter: 0.95 in Package Contents: Precision Reflex MSTN QC Brakes 5.56mm/223 Precision Reflex 05-0089B: MSTN QC Brake 5.56mm 223 Black