Airtech Studios Advanced R-Hop Arm for Krytac Gun Platform_M4/M16/AR15 By pulling down on the

By pulling down on the tab and drawing out the pull-string

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making them accessible to finger lengths of all sizes

This lets the Shadow 2 sit more firmly in the shooters hand and promotes better recoil management

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Airtech Studios Advanced R-Hop Arm for Krytac Gun Platform_M4/M16/AR15 By pulling down on theSuitable for Krytac hop up models. Perfect TDC top down centre force gets applied to the R hop patch. No need for modifying the stock arm and adding M nub (this arm provides both). Easy drop in with no modifications required.