Grizzly 5 port Self Timing Muzzle Brake 5/8-24 by J&A Outdoors
Intended for use in bolt action HUNTING rifles. Specifications:Bore Size: 338 Caliber WORKS EXCELLENT WITH ALL calibers from 224 to 338! Brake Body Diameter: .995 Weight: 4.4 Ounces Length: 3.030 Inches Long Made in the USA.Thread pitch: 5/8-24 Constructed of 416R stainless steel