Buy a kit: \r
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This is my mod guide for the Nerf Elite Strongarm using an OMW kit. If you cant get your hands on a kit, the guide is the same, just replace or add a spring for more power and then compensate with a stronger catch spring. Reinforce your existing plunger and catch with epoxy where they experience the most stress. Really though, its tough to beat the price on the OMW kit and the metallic trigger is too cool.