The finest thread adapter available that converts the factory thread pitch to 1/2 X 28. Each adapter comes with a new O-ring (red) & built in wrench. This adapter can be mounted permanently & provides the perfect index without any loss or deviation of zero. Visit our website or give us a call to order one today!

HKPARTS.NET // 801.987.3494

HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28 // $29.95
Umarex Barrel Adapter, HK thread adapter

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