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SilencerCo GSG 1911-22LR Delta Thread Adapter – 1/2×28
$14.80SilencerCo Thread Protector 1/2X28Barrel AdapterBlackFeatures:Protects threads when silencer not attachedPrevents debris build up in threads
SilencerCo Thread Protector 1/2X28Barrel AdapterBlackFeatures:Protects threads when silencer not attachedPrevents debris build up in threads