Tom Clancy's Splinter Cell: Conviction/Weapons and Gadgets

Mk. 23
A basic silenced pistol with 2 marks and 12 rounds by default.

MP5-SD3
The only silenced SMG.

Shotguns
Effective at close range, shotguns are poor over distance and very loud.

Gadgets
All gadgets have two upgrade slots, except the Portable EMP which has none.