Area 419 Hellfire 2P Self Timing Brake Features The Area 419 Hellfire 2P Self Timing Brake was engineered from the ground up rather than copied from existing self timing brake designs with a focus on effectiveness ease of installation and versatility. Installation starts by torquing the universal adapter onto the barrel with a 5/8 inch wrench a piece that never needs to be removed again. The brake and collar assembly then threads onto the adapter using a left hand thread until snug after which the brake is rotated until level and pushed into the adapter to lock onto the taper. A simple round knurled nut requires no tools to complete the timing process eliminating the guesswork of where the ports will line up once tightened. Built from steel and threaded 5/8x24 the brake is sized for any bullet caliber up to and including .243 covering popular chamberings like .223 5.56 NATO .204 Ruger and .17 caliber rounds. This caliber-flexible bore approach keeps costs down for the consumer while sacrificing almost nothing in efficiency compared to a caliber-specific brake. The brake s design also delivers excellent return to zero meaning removal and reinstallation will not require re-zeroing the rifle. Part of the patent pending Hellfire Modular Brake System the Area 419 Hellfire 2P Self Timing Brake is a well-engineered muzzle device available for sale at GrabAGun. Area 419 Hellfire 2P Self Timing Brake Specifications Manufacturer: Area 419 Model: Hellfire 2P Self Timing Brake Caliber: 223 / 6mm Material: Steel Thread Pattern: 5/8x24 Length: 6 Width: 3.50 Color: Black Includes: Adapter Weight: 0.50 lbs Available At: GrabAGun