Take a look at this bad boy:
Dubbed the SCW-9, the platform was submitted as Angstadt’s entry — along with those from five other companies — for evaluation for use by Army personal security details. Guns proposed for the program had to be a “highly concealable” Sub-Compact Weapon “capable of engaging threat personnel with a high volume of lethal and accurate fires at close range with minimal collateral damage.”
Aiming to meet those guidelines, the SCW-9 is some 14.7-inches long overall when its telescoping buttstock is collapsed. Featuring a 4-inch barrel with a three-lug adapter for suppressors, the 9mm sub gun takes double stack Glock pattern mags and weighs in at 4-pounds flat.
Fundamentally, it is a more modern take on the 1980s Colt SMG:
More in my column at Guns.com.