Kexuan Muzzle Brake Recoil Compensator for AR-10 .LR 308 5/8inx24 thread Black Steel. LR 308 5/8inx24 thread. Crush washer and Jam nut included Specifications for Kexuan AR-10 .LR 308 Muzzle Brake Recoil Compensator: Manufacturer: Kexuan Projectile Caliber: .308 Caliber Fabric/Material: Stainless Steel Threads per Inch: 5/8x24 Gun Make: AR Platform Gun Model: DPMS LR-308 AR-10 Condition: New Features of Kexuan AR-10 .LR 308 Muzzle Brake Recoil Compensator Helps to control recoil and rising of barrel after firing Redirects propellant gases to counter recoil and unwanted rising Reduce the area needed to take up the recoil stroke High quality steel construction with CNC machined tech Distance to first port hole 0.66in Package Contents: Kexuan AR-10 .LR 308 Muzzle Brake Recoil Compensator Jam nut Crush washer What firearm models does the manufacturer say Kexuan AR-10 .LR 308 Muzzle Brake Recoil Compensator is compatible with? The manufacturer says that Kexuan AR-10 .LR 308 Muzzle Brake Recoil Compensator is compatible with AR-10 DPMS LR-308Kexuan MZ-01-02-B: Muzzle Brake Recoil Compensator for AR-10 .LR 308 5/8inx24 thread Black Steel