JL Billet V.P.R. Muzzle Brake 9mm 1/2-28 Stainless Steel

JL Billet V.P.R. Muzzle Brake 9mm 1/2-28 Stainless Steel. P.R. Our V.P.R. muzzle brakes are designed with varying degree port angles to redirect the gases out and up to reduce felt recoil as well as reduce the muzzle rise. We 5 axis CNC machine these from 303 stainless steel to get the proper port angles. The port angles start with a 15 degree back angle and decrease as the gases dissipate moving forward. This provides the shooter with a smooth feeling recoil reduction. 1/2-28 Threads. Check out the review from the Fire Arm Blog http://www.thefirearmblog.com/blog/2015/07/16/review-jl-billet-v-p-r-muzzle-brake-for-5-56-223/ Specifications for JL Billet V.P.R. Muzzle Brake 5.56/223: Manufacturer: JL Billet Threads per Inch: 1/2x28 Gun Make: DPMS Gun Model: AR-15 Weight: 0.2 lb Additional Features: Machined Finish Condition: New Country of Origin: USA Features of JL Billet V.P.R. Muzzle Brake 5.56/223 AR 556 or 223 compensator / muzzle brake to reduce recoil with varying port angles Package Contents: JL Billet V.P.R. Muzzle Brake 5.56/223 What firearm models does the manufacturer say JL Billet V.P.R. Muzzle Brake 5.56/223 is compatible with? The manufacturer says that JL Billet V.P.R. Muzzle Brake 5.56/223 is compatible with AR-15JL Billet JLB-9MM-VPR-R: V.P.R. Muzzle Brake 9mm 1/2-28 Stainless Steel