Many gun companies and gunsmiths make a common mistake and thread .22 LR barrels at AR-15 thread lengths. Most .22 silencers on the market will not shoulder correctly on AR-15 thread length. This spacer shortens AR-15 thread length to .22 LR thread length while ensuring concentricity.
Yankee Hill 2007 HUB Adapter Wrench Black 7.75″ Long for 1.375″-24 HUB Mounting Systems
Class 3 Parts & Accessories
Online Only$29.75







