Trigger Upgrade Kit: Sierra 3 lb Drop In Ultra Match Skeletonized Trigger + AR-15 Lite Lower Parts Kit + Anti-Walk AR-15/M16 Receiver Pins

Trigger Upgrade Kit: Sierra 3 lb Drop In Ultra Match Skeletonized Trigger + AR-15 Lite Lower Parts Kit + Anti-Walk AR-15/M16 Receiver Pins

Upgrade your AR-15 with a trigger system built for speed, precision, and reliability. The Sierra Trigger Upgrade Kit combines a premium 3 lb drop-in performance trigger with a set of anti-walk receiver pins, providing everything needed to install a high-performance fire control system securely. Designed for shooters seeking a lighter trigger pull, shorter reset, and improved consistency, this package is ideal for competition rifles, precision builds, and performance upgrades. The included anti-walk pins help maintain proper trigger alignment during extended shooting sessions while providing a secure installation for drop-in trigger assemblies.

Key Features

• 3 lb drop-in performance trigger system
• Smooth single-stage trigger feel
• Ultra-short reset for rapid follow-up shots
• Skeletonized hammer and trigger design
• Includes black anti-walk receiver pin set
• Fits standard small-pin (.154") AR-15 lower receivers
• Excellent for competition and performance rifle builds

Perfect For

• 3-Gun competition rifles
• Precision AR-15 builds
• Performance trigger upgrades
• High-round-count range rifles
• Custom AR-15 builds
• Shooters seeking faster follow-up shots

3 lb Performance Trigger

The included drop-in "Sierra" trigger system delivers an exceptionally crisp 3 lb trigger pull with an ultra-short reset that promotes fast, controlled follow-up shots. Designed around a refined single-stage trigger feel, it blends the smoothness of a match trigger with the reliability required for everyday use. The skeletonized hammer and trigger reduce unnecessary mass while maintaining dependable ignition, allowing shooters to maximize accuracy and speed without sacrificing reliability.

Anti-Walk Pin Upgrade

The included anti-walk receiver pins provide a secure mounting solution specifically suited for drop-in trigger assemblies. Replacing traditional hammer and trigger pins, these precision-machined pins utilize threaded retainers to positively lock the trigger assembly in place and help prevent pin movement during extended firing sessions. Designed for standard .154" small-pin AR-15 lower receivers, they offer enhanced durability and peace of mind for competition shooters and enthusiasts alike.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Verify compatibility with your specific lower receiver before installation. Inspect all components for damage before use.