AR Lower Parts Kits

Simplify your AR-15 build with complete lower parts kits from Crossfire Gunsmith & Firearms in Lexington, SC. Why source individual components when you can get everything needed to complete your lower receiver in one convenient, guaranteed-compatible package?

Our AR lower parts kit selection includes basic mil-spec kits for standard builds and premium kits with enhanced components. Each kit contains triggers, springs, pins, and hardware needed to transform your stripped lower into a functional receiver.

Quality parts kits ensure proper fit and function while eliminating compatibility concerns. From budget-friendly basic kits to premium packages with upgraded triggers and controls, we’ve got options for every build and budget.

Need individual upgrades? Check out our AR triggers, AR grips, and AR safety selectors for custom builds.