Product Overview and Introduction

Take your AR-15 platform’s performance, reliability, and feel to the next level with the ALG Defense Combat Trigger (ACT) – MPN: 05-199. Developed by Geissele Automatics’ sister company, the ACT is designed for shooters who demand a duty-ready, crisp, and ultra-reliable trigger without sacrificing the drop-in compatibility and rugged safety margins of a standard Mil-Spec fire control group.

Whether you are building a duty rifle, a home-defense carbine, or a high-round-count training gun, the ACT delivers a noticeably smoother, cleaner pull while maintaining the heavy hammer strike necessary for reliable ignition with all types of ammunition.

Precision Engineering and Enhanced Mil-Spec Design

The ACT is engineered to eliminate the gritty, heavy pull typical of standard factory trigger groups while keeping the exact geometry required for hard-use reliability:

• Crisp Single-Stage Break: Offers a clean, smooth pull that breaks significantly cleaner than standard mil-spec triggers, aiding in accuracy and speed.

• Corrosion-Resistant Nano-Coating: The trigger, hammer, and sear are treated with a specialized hard-lubricant nano-coating that reduces friction, prevents rust, and ensures a glass-smooth pull even when dry.

• Mil-Spec Reliability: Retains standard-weight hammer springs and Mil-Spec geometry, ensuring 100% ignition reliability with surplus ammo, hard primers, and steel-cased rounds.

• Passing Drop-Safety Standards: Engineered to meet or exceed rigorous drop-safety and military specifications, making it fully trusted for duty and tactical applications.

The Ultimate Duty-Grade Upgrade

The ALG Defense ACT bridges the gap between heavy, gritty factory triggers and expensive two-stage match triggers. It provides the tactile feedback and clean break needed for precision shooting while retaining the rugged, foolproof dependability required for serious defensive use.

Key Features and Benefits

• Enhanced Mil-Spec Design: Direct drop-in replacement with superior crispness and reduced grit.

• Proprietary Nano-Coating: Low-friction finish for a smoother pull and enhanced corrosion resistance.

• Full Power Hammer Spring: Guarantees positive primer ignition across all 5.56/.223 and .300 BLK loads.

• Geissele Quality Standards: Precision-machined from quality ordnance steel for unmatched durability.

Specifications

• Product Type: AR-15 Single-Stage Trigger Upgrade

• Manufacturer Part Number (MPN): 05-199

• Platform Compatibility: AR-15 / AR-10 / Mil-Spec Lower Receivers (.154-inch hammer/trigger pins)

• Trigger Type: Single-Stage Combat Trigger

• Finish: Specialized Nano-Coated Surface Treatment

• Manufacturer: ALG Defense