Build a smoother, faster, and more refined AR-15 lower with this complete Trigger Upgrade Kit. Combining the Wasatch 3 lb Drop-In Ultra Match Trigger, the KAK Industry Lite Lower Parts Kit, and a Mil-Spec Anti-Walk Pin Set, this package gives builders everything needed to complete a lower receiver while upgrading one of the rifle's most important performance components. The Lite Lower Parts Kit intentionally omits the factory fire control group, allowing the premium drop-in trigger to take its place without purchasing unnecessary duplicate components. Completing the package is a durable anti-walk pin set that helps secure the trigger assembly and reduce long-term receiver wear for dependable performance over thousands of rounds.
The Wasatch Ultra Match Trigger System is engineered to provide a crisp, consistent trigger pull that improves both speed and accuracy. Featuring a solid hammer design and a clean 3 lb break, this single-stage drop-in trigger delivers reliable performance while simplifying installation with its self-contained cassette design. The distinctive crimson red finish adds a custom appearance that stands out while maintaining dependable function for competition, range, and recreational shooting.
Designed specifically for builders planning to install an aftermarket trigger, the Lite Lower Parts Kit includes every essential lower receiver component except the factory fire control group. This eliminates unnecessary duplicate parts while maintaining full Mil-Spec compatibility. The kit includes a black A2 pistol grip, selector assembly, magazine catch, bolt catch, takedown and pivot pins, trigger guard, springs, detents, and installation hardware needed to complete a stripped lower receiver around your upgraded trigger.
The included steel anti-walk pin set replaces traditional hammer and trigger pins with a more secure retention system designed to prevent lateral movement during operation. Manufactured from steel with a durable black nitride finish, the .154" Mil-Spec pins help reduce receiver wear while maintaining proper trigger alignment during high round-count shooting. Installation hardware, hammer and trigger posts, hex keys, and an installation guide are included for straightforward assembly.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Verify compatibility with your specific lower receiver before installation. Use quality ammunition and maintain proper firearm maintenance.
AR-15/M4 3 lb Drop-In Ultra Match Trigger System
AR-15/M16 .154" Steel Anti-Walk Pin Set
AR-15 "Lite" Lower Parts Kit (No Fire Control Group)
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