OVERALL DIMENSIONS – LENGTH – 45.7 cm (18 in), WIDTH – 10.2 cm (4 in), HEIGHT – 33 cm (13 in)
WEIGHT (EMPTY) – 3.52 kg (7 lbs 12 oz) case only
WEIGHT (LOADED) – 7.81 kg (17 lb 3.5 oz) With Ingram M11, Suppressor, Stock, 3 – 32 round magazines
SIGHTS – None
EFFECTIVE RANGE – 20 m (22 yds)
TYPE OF FIRE – Selective, Semi or Full automatic
MANUFACTURER – Military Armament Corporation (MAC), Marietta, Georgia (As MAC M11), SWD Inc., Atlanta, Georgia
STATUS – Obsolescent
SERVICE – Commercial sales
This is a very unusual accessory for the Ingram M11. It is a hard-sided briefcase that holds an Ingram M11 submachinegun with the stock removed and the suppressor mounted. The M11 is secured with a Velcro strap and a fitted section that cradles the weapon and the weapon is loaded with a 32 round magazine. A steel lever extends from out of the bottom of the case up to the trigger of the M11. There is a lug on the lever that engages the trigger of the M11. Additionally, a spring loads the trigger lever and returns it into position when pressure is removed from it. On the opposite side of the case, near the bottom, is a Velcro strap that secures the stock to the M11 that has to be removed for the weapon to fit in its socket in the case. On the top of the case are additional Velcro straps that secure an additional pair of 32 round magazines. There is also a formed steel brass deflector that helps guide fired casings away from the weapon to help prevent jams. The defector is attached to the cover of the briefcase.
To use the case a loaded and cocked M11 is strapped into place. The weapon may be cocked after it is in place but the safety has to be manually switched to fire while the case is open. With the case lid secured, the briefcase is tucked up under the shooting arm. The other common position is to hold the back of the case against the chest. The firing lever at the bottom of the case is held back and the weapon fires as long as the lever is held in position. There is a small frame on the side of the case, opposite of the weapon, where the exit hole for the projectiles is. The exit hold can be covered with a business card slipped into the frame.
Additional cases were manufactured to hold the M10 submachinegun. But that case took a special short-bodied suppressor in order for the weapon to fit in a standard briefcase. The M11 model was the more common of the limited production Operational Briefcases.
