The Spike’s Tactical Enhanced Lower Parts Kit (brand part number SLPK301) is built for shooters who want the most longevity possible out of every part in their AR-15 lower, centered around the ST Battle Trigger, a single-stage Mil-Spec trigger with a rounded hammer and Nickel Boron-plated disconnector for a smooth, crisp pull. The trigger and hammer pins are held in place with KNS Gen II Mod II Anti-Rotation pins, which stop the pins from walking out and prevent the pin holes from enlarging, or egg-holing, after years of heavy use. The kit also includes an ambidextrous safety selector, an ST Billet trigger guard with set screw, and an Ergo grip featuring Spike’s own spider logo, plus Mil-Spec bolt catch, mag catch, mag catch button, detents, plungers, pins, and springs. Made in the USA.

Key Specifications

• Centered on the ST Battle Trigger, a single-stage Mil-Spec design.
• Features a rounded hammer and Nickel Boron-plated disconnector for a smooth pull.
• Secured with KNS Gen II Mod II Anti-Rotation pins to prevent pin walking and hole egg-holing.
• Includes an ambidextrous safety selector.
• Includes an ST Billet trigger guard with set screw.
• Includes an Ergo grip with Spike’s spider logo.
• Built with Mil-Spec bolt catch, mag catch, and mag catch button.
• Includes Mil-Spec detents, plungers, pins, and springs, plus spiral roll pins and mounting hardware.
• Manufactured in the USA by Spike’s Tactical.

Frequently Asked Questions

What makes this different from a basic lower parts kit? It’s built around the upgraded ST Battle Trigger with a Nickel Boron-plated disconnector and secured with KNS Gen II Mod II Anti-Rotation pins, rather than standard Mil-Spec pins that can walk and enlarge their holes over time.

Does this kit include a grip and safety selector? Yes, it includes an Ergo grip with Spike’s spider logo and an ambidextrous safety selector.

Is this a complete lower parts kit? Yes, it includes the trigger group, safety selector, trigger guard, grip, bolt catch, mag catch assembly, and all detents, springs, and roll pins needed to finish a lower build.

Buy the Spike’s Tactical Enhanced Lower Parts Kit, Black

Build a lower that will hold up to years of hard use with Spike’s upgraded parts throughout. Order the Spikes Tactical Enhanced LPK from our AR lower parts kits lineup, shipped fast from our Lubbock, Texas gun shop.