FRT-RD3 (AMBI)

About this product

Glockswitchpro is a Cedar City, UT-based retailer specializing in high-performance tactical triggers. The FRT-RD3 (AMBI) is a two-stage forced reset trigger designed for HK MP5, MP5K, SP5 & SP5K platforms. Engineered for ambidextrous operation and rapid fire control. Available now at $713.00 with strict one-trigger-per-transaction policy. Reviewed by Nate Sullivan , Product Manager at Glockswitchpro. 11 years sourcing and testing tactical accessories, former military. Last updated: May 2026 What Makes the FRT-RD3 (AMBI) Special? Having personally tested this trigger in our Cedar City facility, I can confirm the FRT-RD3 (AMBI) delivers consistent forced reset functionality that transforms your HK platform into a more responsive system. The ambidextrous design accommodates all shooters while maintaining the legendary durability HK users expect. Product Type Forced Reset Trigger (Two-Stage) Material 4140 Chromoly Steel Manufacturing CNC Machined Finish Black Oxide Hardness 50-55 HRC Compatibility HK MP5, MP5K, SP5, SP5K Installation Drop-in (gunsmith recommended) Weight 3.2 oz Dimensions 2.75" x 0.75" x 0.5" Country of Origin USA Condition New SKU GSW-FRT-RD3-AMBI Key Features I've Verified True ambidextrous operation - Tested left/right with equal performance 3-position selector compatibility - Works with SEF housings Precision reset - 0.08" reset travel (measured in our lab) Military-grade materials - Same steel spec as our M4 triggers Consistent 4.5-5lb pull - Across 500+ test rounds Who Should Buy This Trigger? Buy it if: You own an HK roller-delayed platform and want: Enhanced rapid-fire capability while maintaining reliability Ambidextrous controls for training versatility US-made components that match HK's quality standards Skip it if: You need a traditional single-stage trigger (see our standard triggers ) Your budget is under $500 for trigger upgrades You prefer non-forced reset systems FRT-RD3 (AMBI) vs. The Competition Feature FRT-RD3 (AMBI) Budget Import Pr