Crown Customs Stock Adapters 3D-printed with PA6-CF20 carbon-fiber-reinforced nylon High strength, heat resistance, and long-term durability Metal-reinforced threads in all critical locations Designed for competitive and field-ready airsoft builds Permanent modification required for most V2 lowers Precision slide-on cut guide included Types: Receiver Endplate Straight Dropstock 15° Dropstock Stubbystock Dropstock Compatible With: G&G Polymer Lower Receivers: Rear buffer tower may need shortened Other V2 Lower Receivers: Rear buffer tower must be shortened *Installation Note: To achieve the low-profile rear interface, most V2 lower receivers will require shortening of the rear buffer tower. A precision slide-on cut guide is included to ensure a straight cut at the correct length. Slide the guide onto the tower until it seats firmly against the rear receiver face, then cut the tower flush to the guide. This creates the correct mounting length for proper installation. Permanent modification is required. Crown Customs is not responsible for improper installation. Professional installation is recommended*