Ruger AR-15 Lower Parts Kit with GI Trigger and A2 Grip

Everything below the receiver in one box. Ruger's AR lower parts kit covers the fire control group, the safety selector and detent, the magazine catch with button and spring, the full bolt catch assembly, both takedown pins with their springs and detents, the buffer retainer and spring, the trigger guard assembly and an A2 pistol grip with screw and washer.

The trigger is the standard GI single stage unit, which is the sensible call for a duty pattern build or for any lower where an aftermarket trigger goes in later and you just need the rest of the small parts to be right. Ruger notes these parts are built for AR-15 pattern rifles and recommends a gunsmith handle the install.