Holy Shit! Gun!

The Heckler-Koch XM-29 SABR OICW (Objective Individual Combat Weapon) is the new gun being designed for the Army to replace both the M-9 and the M-16. Research & development began in 1986, and it's now close to completion. It's designed to be able to fire both the 5.56 mm NATO round and a 20 mm high explosive round, and it comes complete with an advanced, computer operated camera scope.

Right Side

Left Side

Parts Breakdown

Rounds