RCM HK USP .40 to 9mm Conversion Barrel – Threaded – 1/2×28
This 9mm conversion barrel is a drop-in replacement that allows your USP to shoot the popular 9mm cartridge. It has the standard 1/2×28 thread and comes with a thread protector. Each barrel is made from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. A must-have conversion barrel for all USP owners.
Specifications
