Spike's Lpk 556 W/o Trigger Group

The Spike's LPK 556 without trigger group is a precision lower parts kit engineered to exceed military specifications while delivering superior fit and finish. Manufactured entirely in the USA, this Spike's Tactical lower parts kit serves as the foundation for 5.56 NATO/.223 Remington rifle builds, providing operators, gunsmiths, and serious enthusiasts with a quality control platform that surpasses standard mil-spec tolerances.

This kit includes the Spike's Pro Grip—a lightweight ergonomic component that reduces fatigue during extended shooting sessions and improves purchase consistency across platform builds. By excluding the trigger group, this LPK allows builders to source purpose-matched triggers suited to their intended application, whether that's precision distance shooting, dynamic tactical training, or general-duty rifle configuration. The modular approach lets users pair mil-spec lower receivers with match-grade fire control groups from their preferred manufacturers.

Armorers and rifle builders choose the Spike's 556 LPK for its consistency in critical tolerances and American manufacturing reliability. Weighing 0.38 lbs, the kit compresses into a compact 5 x 1.25 x 8-inch footprint, making it easy to inventory or transport. Whether you're assembling your first AR-15 platform or building a precision carbine for law enforcement or private security applications, this lower parts kit provides the foundation quality and flexibility professionals demand.