Crown Customs Traditional Upper Receiver *Handguard must be chosen separately* 3D-printed with PA6-CF20 carbon-fiber-reinforced nylon High strength, heat resistance, and long-term durability Metal-reinforced threads in all critical locations AEG and HPA compatible Integrated outer barrel interface for consistent alignment Lightweight skeletonized design Designed for competitive and field-ready airsoft builds Barrel Extension Selection 2″ of barrel length is built into the receiver Select extensions totaling 2″ shorter than your desired final barrel length Example: Desired final barrel length: 6″ Traditional upper → order 4″ extension Compatible With: V2 AEG Gearboxes: May require minor modification G&G Polymer Lower Receivers: Drop-in fit Other Lower Receivers: May require modification
