Pick a gun to build

Every builder uses real parts, checks fit and caliber, and adds the small parts a build needs.

Build a full-size AR-15 from real parts, with fit, caliber and legal checks.

Build a .308-class AR from real parts, with pattern, caliber and legal checks.

Build out an AK from a real base rifle, with fit, caliber and legal checks.

Build a compact AR pistol part by part, with fit and legal checks.

Pick a pistol-caliber carbine or braced pistol and kit it out with parts that fit it.

Upgrade a factory PS90: chassis, barrel, muzzle devices, optics and more.

Set up a bolt-action precision rifle with a chassis, glass and a bipod.

Upgrade a Glock-pattern pistol part by part.

Upgrade a SIG pistol with modules, slides, optics and lights that fit.

Kit out an FN pistol with parts that fit it.

Build up a 10/22 with the stocks, barrels and triggers that fit it.

Set up a 12 gauge with parts made for your shotgun.