Strike Industries Oppressor Universal Blast Shield Features The Strike Industries Oppressor Universal fits almost any muzzle device on the market with a maximum outer diameter of 25mm making it compatible across .223/5.56 .308/7.62 and 9mm platforms. Its steel core paired with a 6061-T6 aluminum body keeps the shield durable under repeated firing while still anodized for corrosion resistance. Advanced internal geometry actively draws propellant gasses out and thrusts them forward through ports accomplishing a linear braking effect that maintains efficiency rather than simply blocking blast. This design reduces the muzzle blast and concussion that can fatigue shooters and bystanders on an indoor range or crowded firing line. Installation relies on Strike Industries proprietary 3-lug quick detach base which locks on with a push and a slight turn and includes a properly sized crush washer for correct muzzle device timing and alignment. This QD design means the shield can be removed just as quickly when it is not needed without re-zeroing or re-timing the muzzle device each time. Measuring 3.37 inches long and 1.61 inches in diameter the Oppressor Universal adds minimal length to a barrel while delivering its blast redirection benefit. Shooters training at indoor ranges or courteous of neighbors on a public line will appreciate the quick-attach convenience this shield offers. Strike Industries Oppressor Universal Blast Shield Specifications Manufacturer: Strike Industries Model: Oppressor Universal Blast Shield Compatible Hosts: Muzzle Devices up to 25mm Diameter Length: 3.37 Diameter: 1.61 Material: Aluminum / Steel Finish: Anodized Thread Pattern: 1/2 Weight: 7.85 oz Color: Black Caliber: 7.62 X 51 Available At: GrabAGun