Ultradyne Apollo S Compensator 7.62x51mm Nitride 416 Stainless Steel Black. 62x39mm. Ultradyne built these Recoil Reducing Muzzle Devices from rugged stainless steel with a tough nitride coating for extreme durability in the field. And these Ultradyne 7.62x39mm Apollo S Recoil Reducers offer increased recoil reduction for a more comfortable shooting experience that nearly eliminates muzzle rise. This ultra-tactical recoil reducer can help you boost your precision in the field by minimizing recoil muzzle rise and your perceived blast. Boost your accuracy in the field while completely controlling your shots with the Ultradyne Apollo S 7.62x39mm Pistol Comp. Specifications for Ultradyne Apollo S Compensator 7.62x51mm: Manufacturer: Ultradyne Color: Black Caliber: 7.62x51mm NATO Finish: Nitride Fabric/Material: 416 Stainless Steel Outer Diameter: 0.975 in Condition: New Features of Ultradyne Apollo S Compensator 7.62x51mm Extreme Recoil Reduction Virtually Eliminates Muzzle Rise Manages Sonic Blast Pairs easily with the Dynamount Sighting System 416 Stainless Steel with Ultra Rugged SB Nitride Coating .975 Outside Diameter Competition Legal made in specialized factories Package Contents: Ultradyne Apollo S Compensator 7.62x51mm Shrouded Timing Nut Included Ultradyne UD10270 Apollo S Compensator 7.62x51mm Black Nitride 416 Stainless Steel