The Umarex T4E HDS Shotgun is capable of cambering 2 - 0.68 cal paintballs, wax powder balls and wax shelled Pepperballs . 
will include 25 powderball rounds. and 1- 12g CO2
 Top selector switch allows you to select the barrel you'd like to shoot.  
Center the selector and shoot both balls at once.  
Quality construction with a durable heavy polymer stock and aluminum barrel.  
Includes a forward picatinny rail underneath for quick attachment of a flashlight or other accessory and a built-in trigger safety.

The double-barreled Home Defense Shotgun 68 combines power and speed. Thanks to its quick-piercing system it’s ready to use at any time. With a light blow on the bottom of the grip you can puncture the CO2 capsule whenever the occasion demands. The HDS comes with a Picatinny rail under the barrel and a pressure indicator. The large .68 caliber allows you to use rubber balls, pepper balls, chalk balls and paintballs, which can be shot individually or simultaneously from both barrels.

FEATURES INCLUDE:
Shoots .68 cal Paintball, .68 cal Rubber Balls and First Strike Rounds
Dual Barrel with Barrel Selector
Breech Load Action
Front Picatinny Rail
Quick Pierce 12g CO2 Air System
Top Pressurized Indicator
Built-in Trigger Safety
Velocity is approximately 200 FPS (this can vary slightly depending on ball to barrel size matching).
 
TECHNICAL DATA
Caliber                                .68
Magazine capacity              2 shot(s)
Velocity                              62 m/s
Energy                              <7.5 Joule(s)
Length                              490 mm
Weight                              1700 g
 
7 Joule US model.

Can be convert to 16 joule version.