Spike's Tactical R2 Brake 5.56mm 1/2-28 TPI Black Nitride. What recoil? This brake has extremely large side ports for diverting the gas followed by the projectile outwards for excellent recoil management. If taming the beast is what you want then look no further Specifications for Spike SBV1065 R2 Brake 5.56: Mfg Item Num: SBV1065 Supplier SKU: 14248 Category: FIREARM PARTS Type: Muzzle Brake Model: 5.56mm Features of Spikes Tactical R2 Brake: 1/2x28 Material: 416 Stainless Steel Thread: 1/2 X 28 Finish: Black Nitride Features: Large Side Porting Weight: 2.6oz 5/8x24 Material: 416 Stainless Steel Thread: 5/8 X 24 Finish: Black Nitride Features: Large Side Porting Weight: 3.2oz The Spike SBV1065 R2 Brake 5.56 is a quality addition to the Spikes Tactical lineup. For more great deals on Muzzle Brakes & Compensators by Spikes Tactical please browse our Spikes Tactical Gun Parts page. Spike SBV1065 R2 Brake 5.56