glmf Posted June 19, 2014 Share Posted June 19, 2014 I have an early HK marked M1 with the extended magazine, 7 shot. I have purchased a Nordic extension which i want to run because of the better clamp/light mount and the increased capacity. I really dont want to cut the factory extended tube so looking to buy the shorter tube that the Nordic will screw right on. Thanks much Quote Link to comment Share on other sites More sharing options...
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