Gemtech 12212 .22LR Spacer for Longer Threaded Barrels

Most .22lr suppressor have female threads that run around .400 deep, which works on most threaded .22lr firearms. However, most .22lr conversion kits for AR-type rifles, and some .22lr firearms, have longer male barrel threads. This precision made spacer allows you to use your .22 suppressor on barrels with longer threads.