http://www.outdoorlife.com/photos/galler...node-1001360593

The TX-12 is a single shot, 12-gauge shotgun system designed for breaching applications or any situation where you might need the power of a 12-gauge when not carrying a shotgun. Similar to the M203 grenade launcher used in the military, the TX-12 is attached underneath the barrel.

It feels light— and weighs in at under 1 kilogram, barely affecting the balance and maneuverability of the rifle to which it's attached. Users fire with their weak hand, gripping the rifle's magazine. Available in 7.5-inch and 10.5-inch barrel models.

Specs:
Caliber: 12 gauge
Capacity: 1 round
Barrel Length: 7.5"; 10.5"
Overall Length: 14" with 7.5" barrel; 17" with 10.5" barrel
Finish: Satin Black Oxide
Avg. Wt: Under 1 kg.

MSRP: NA