ZOEKIM Thread Protector 1/2 x 28 for Most .22LR .223 & 5.56 (2 Pack)

ZOEKIM Thread Protector 1/2 x 28 for Most .22LR .223 & 5.56 (2 Pack)

ZOEKIM Thread Protector 5/8x24 for .308 LR308 (2 Pack)

Ficero Thread Protector, 1/2 x 28 Convert to 5/8x24 with Crush Washer Steel (2 Pack)