I’m not sure if this hopup kit is complete or not. It is in good used shape. Features Include Machined from a solid aircraft aluminum block with tight tolerances to provide better accuracy, consistency, and durability Improved accuracy and ensure consistent air seal for VFC SCAR-L/H AEG series Precision rotary dial design for fine hopup adjustments Re-engineered the hopup levers and concave nubs to work best with R-hop, Flat-Hop and Standard-Hop to keep the BBs shooting straight and accurate on every single shot Removable Brass Threaded Slot Pin for setup and maintenance Accepted the nozzle length from 21.00mm to 21.25mm on VFC SCAR-L and 38.50mm to 38.75mm on VFC SCAR-H Fully compatible with stock bucking and most aftermarket soft and hard rubber bucking without losing FPS or dropping BBs Extended sliding arms design on both side of the chamber housing to ensure the hopup unit is always centered, straight and air tight at all times when closing the receivers Check my page to see if there is anything else you need! I will accept reasonable offers I will combine shipping on multiple orders when possible