Blog

The real Mk 12 Mod 0 and Mod 1 specs side by side, and the in-stock parts that come closest for a clone build …

How much velocity each inch of AR-15 barrel really buys, which gas system goes with it, and how each length is priced today.

A hinge between receiver and tube: how AR-15 folding stock adapters work, what they add, and whether the rifle fires folded.

How short a PDW stock gets, which ones need a special buffer system, and which ones fit your existing AR-15 tube.

Stance, grip, cheek weld, trigger press and zero: the basics of shooting an AR-15, from the Army rifle and carbine manual.

Side-charging uppers, reciprocating carrier handles and bolt-on kits: how each works and which one fits your AR-15.

A steel core wrapped in carbon fiber: what a carbon AR-15 barrel saves in weight, what it costs, and when it is worth it.

Optic first, then sling, light and trigger: the AR-15 upgrade order that matters, with what each costs in our catalog.