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.