Drop-In Muzzle Brake - No Thread Cutting Or Welding Required
Easy-to-install muzzle brake simply replaces the factory bushing on any full-size Colt 1911 Government model or clone. Some of the combustion gas is redirected through helical ports cut at the same angle as the 1-16" rifling found in most 1911 barrels to and help control muzzle rise and reduce felt recoil. Reduces muzzle flash, too. Machined from hardened 4140 steel to resist blast erosion.
1911, Issue:11, Page:009
Big Book Catalog, Issue:70, Page:100
SPECS: 4140 steel, black matte finish. 2.075” (5.3 cm) O.A.L. Extends 1.335” (3.39 cm) beyond the slide. .696” (17.7 mm) O.D. .582” (14.7 mm) I.D. Fits full-size 1911 with 5” barrels only. Will not work in the Commander or Officer-size pistols.