Description
Retro Arms's Hopup Nub for the Retro Arms Hopup Unit.
Also compatible with any Hopup unit using a standard Hopup Arm.
Parts and accessories ship within 7 business days. Custom HPA rifle builds take up to 45 business days (often less). Need it sooner? Contact us to check current stock.
All sales on parts and accessories are final once shipped. Defective or damaged items are covered under the KA Tech Warranty.