This Ruger AR lower parts kit supplies the internals needed to finish an AR-15 lower receiver, including a GI-style trigger group and an A2 pistol grip. Building a lower is one of the most approachable projects in the firearms world, and a complete kit removes the guesswork of sourcing springs, detents and pins individually — the parts most likely to end up lost in the carpet.

The mil-spec GI trigger is a known quantity: durable, safe and easy to replace later if you decide to upgrade. A practical foundation for a first build or a spare parts stash for an existing rifle.

In stock and ready to ship straight to your door from Dawson Defense, an Arizona-owned licensed dealer.