The H&K USP Compact Tactical GBB Pistol packs a full-sized punch

Trigger safety

Pre-installed AEG rotary hop-up

— Integration of axis & gear instead of cooper shaft guide

letting you play much longer on a single charge

Tapp Airsoft Titanium HPA Tap for Tokyo Marui Hi-Capa Magazine polarstar jack The H&K USP Compact TacticalThis is a stainless steel HPA valve adapter compatible with any TM pistol magazine valve. This allows you to connect HPA system to your magazine. Easy installation with Allen key cut out to tighten without pliers. CNC machined from Titanium alloy. This HPA tap is the strongest on the market. Features a 4mm hex key for an easy installation.