

The Hiperfire PDI Drop-In Trigger Assembly for the SIG MCX is engineered to deliver precision, reliability, and a dramatically improved trigger feel in a convenient drop-in format. Designed specifically for AR15/10 platform rifles chambered in the SIG MCX configuration, this single-stage trigger offers a crisp 2 lb pull weight backed by a MIL-Grade hammer strike that guarantees a reliable ignition every time - no light primer strikes, ever. The H&M BLACKNITRIDE+™ finish provides an exceptionally smooth feel, enhanced corrosion protection, and a polished look that sets this trigger apart from the competition. Built PCC blowback-tough with a Hammer Collision Bumper and comprehensive disconnector crash and spring crush protection, the PDI is ready for the harshest operating conditions. The Curved Trigger Bow with a Backbone™ and HIPERSHOE® Finger Pad Revolution™ round out a trigger that redefines what drop-in performance can feel like.
Product Highlights
- Power Drop-In Design: Specifically built for the SIG MCX, offering fast and straightforward installation with no gunsmithing required.
- MIL-Grade Hammer Strike: Delivers more striking force than a standard Mil-Spec M16 hammer, ensuring reliable primer ignition - no light primer strikes, ever.
- H&M BLACKNITRIDE+™ Finish: Provides an exceptionally smooth feel, enhanced corrosion resistance, and a premium polished appearance.
- PCC Blowback Tough: Features a Hammer Collision Bumper, Disconnector Crash Protection, and Disconnector Spring Crush Protection for durability in demanding blowback-operated environments.
- HIPERSHOE® Finger Pad Revolution™: Curved Trigger Bow with a Backbone™ and adjustable finger pad allow fine-tuned ergonomics and reduced perception of trigger weight.
Specs
- Brand: Hiperfire
- Manufacturer Part Number (MPN): PDIMCX
- UPC: 859177004461
- Trigger Type: Single-Stage, Drop-In
- Trigger Pull Weight: 2 lb
- Trigger Bow Style: Curved
- Finish: H&M BLACKNITRIDE+™
- Color: Black
- Compatible With: SIG MCX (AR15/10 Platform)
- Adjustable: Yes (Trigger Shoe)
- Country of Origin: United States of America
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