The Mac 17 is the sturdiest of the compact submachine guns developed in the early 1990s. It shoots .45 Caliber slugs from a 30-shot clip and is known for its man-stopping capabilities. This small weapon is well-suited for close-up firefights.
Also of note is how well fed this weapon can be throughout early areas. Much of the ammo dropped by members of Ugly's gang for example drop a practically abundant amount of .45 clips. It may explain why it is not more common in the wild than its 9mm counterpart.