Check the listing for details. All Steel !!! 1911 .45 ACP Muzzle Brake Compensator Colt Kimber Black. Condition: New. Listed at 39.99 USD. CNC Machined Billet Hardened, Aerospace grade ALL STEELBarrel bushing compensator for Colt 1911/1911 clonesFits 5” Government length 1911 Autos with a barrel OD between .577"-581". The bushing ID. Is .583" +-.0005".Fits calibers up to and including .45 acp. Can fit .38 and 9mmMinor fitting may be requiredNot compatible with bull barrels. This compensator is not threaded.Suppresses recoil by venting gasses at muzzle and adding weight to the end of your barrel.Adds approx. 1 INCH length to your barrel and weighs 2.35 oz. zzle brake comp break 223/5.56 Brake Compensator Brake 89 japan ar'm Ruger muzzle brake, 28 muzzle brake, 1/2x28 muzzle brake compensator thread protector crush washer 10/22 charger 1/2”-28 1/2x28 Walther p22 1/2"-28, 1/2X28, 1/2"x28, .223, .22 Hog hunt, Pig hunter, bore hunting, A2 Muzzle break, muzzle brake, Shark, Fishbone, Tactical, Multi port, threads, oil filter, Micro , Slim, profile, USA, Multi Function, Blank, gillded, can, balancer, phantom, colt, A1, Birdcage 13/16" linear comp flash can adapter Muzzle Brake sTRIKE iNDUSTRIES Concussion Device PIg NoveskeA2 Muzzle break, muzzle brake, Shark, Fishbone, Tactical, Multi port, 223, 1/2x28, 1/2"x28, 1/2"-28, threads, 22LR, .22, Micro , Slim, profile, USA, Multi Function, Blank, gillded, can, balancer, phantom, colt, A1, Birdcage, 10/22, 22/45 tactical free crush dragon surefire cutter washer Lantac short tapco procomp socom warcomp silencerco tanker style punisher custom made AAC comp S6 industries Brake break muzzle CQB JWH Ruger 10/22 bull barrel strike king 2 piece sound redirect prong krinkov 3 beehive armament modular concussion Super ncstar mechforce low raptor claw evertech cookie shark linear Precision A2 Muzzle break, Shark, Ruger Fishbone, Tactical, Multi port, 223, 1/2x28, 1/2"x28, 1/2"-28,1/2-28 threads, 22LR, .22, Micro , Slim, profile, USA, Multi Function, Blank, gillded, can, balancer, phantom, colt, A1, Birdcage, 10/22, 22/45, P22 US Made CA California Compliant Featureless Muzzle Brake Competition 1/2X28 .223/5.56/.22 Ruger Precision ar'm