Designs Our released designs are listed here. Click on any of them for a detailed page with links to the download. SL-15 AR-15 Super Lower. SL-15-DR Double Rib AR-15 Super Lower. SL-9 AR-9 Super Lower SL-308 LR-308 Super Lower ORCA-15 Orca 3D printed AR-15. Stock System 3D printable AR stock system. Grip System 3D printable AR pistol grip system. HCC TPU Hose Clamp Cover Super Safety Active Trigger System
