The Vortex Choke Short Reset System for HK USP and HK45 platforms is a precision-machined trigger enhancement designed to reduce reset travel and improve trigger feel without compromising reliability or safety. Manufactured from bar stock steel, this kit delivers an exacting fit and durable performance. When installed as a complete system, it shortens trigger reset travel by approximately one-third, reduces trigger over-travel, and can slightly reduce perceived pull weight—while maintaining all factory safety mechanisms. This system is designed to replicate the functional characteristics of popular short reset conversions, while remaining a distinct aftermarket product manufactured by Vortex Choke. It is not affiliated with or produced by Grayguns or Heckler & Koch. Key Features Shortened Trigger Reset – Approximately 30–35% reduction in reset travel Reduced Over-Travel – Cleaner break and faster follow-up shots Precision Bar Stock Steel – Durable, wear-resistant construction Factory-Safe Design – Maintains all OEM safety functions Drop-In System – Components engineered to work together as a matched set Compatibility / Fit Guide Fits the following models: USP USP Elite USP Expert USP Compact USP Tactical HK45 HK45 Compact ✔ Compatible with DA/SA and LEM variants✔ Compatible with or without thumb safety Does NOT fit: ❌ Double Action Only (DAO) pistols Included Components Control latch Pin Spring Note: All components are designed to be installed together as a complete system.