Blaster Toys SG - Orange Mod Works Singapore - Nerf Disruptor with the OMW Strongarm kit installed. Some minor mod needed on the trigger and plunger return spring in order for it
Mod Your Blaster: Core Classic System for Nerf Disruptor/Strongarm : Sports & Outdoors - Amazon.com
Nerf Mod Party : 4 Steps (with Pictures) - Instructables
Nerf Disruptor 4.5KG Modification Upgrade Spring Coil Blaster - Etsy
Amazon.com: Mod Your Blaster: Core Classic System for Nerf Disruptor/Strongarm : Sports & Outdoors