During the 1970s the United States placed restrictions on the exportation of suppressors, and a number of countries canceled their orders of M-10s as the effectiveness of the MAC-10's suppressor was one of its main selling points. The suppressor also created a place to hold the weapon this, combined with the weight it added, made the weapon easier to control. Later-production variants had a 'wipeless' suppressor front cap design that was advanced for the time in that its internal metal parts needed only to be cleaned, not replaced, in contrast to the older-technology 'wipe' type suppressors. It was also very quiet, to the point that the bolt could be heard cycling, along with the suppressed report of the weapon's discharge.

This uniquely shaped suppressor gave the MAC-10 a very distinctive look. This suppressor had a two-stage design, with the first stage being larger than the second. The primary reason for the original M-10 finding recognition was its revolutionary sound suppressor designed by Mitchell Werbell III of Sionics. At the suggestion of the United States Army, Ingram added a small bracket with a small strap beneath the muzzle to aid in controlling recoil during fully automatic fire. The barrel is threaded to accept a suppressor, which worked by reducing the discharge's sound, without attempting to reduce the velocity of the bullet. The M-10 fires from an open bolt, and in addition, the light weight of the bolt results in a rapid rate of fire. This allows a more compact weapon, and balances the weight of the weapon over the pistol grip where the magazine is located. The M-10 has a telescoping bolt, which wraps around the barrel. A notched cocking handle protrudes from the top of the receiver, and by turning the handle 90В° would lock the bolt, and act as an indicator that the weapon is unable to fire. The M-10 was built predominantly from steel stampings. The MAC-10 ( Military Armament Corporation Model 10, officially the M10) is a highly compact, blowback operated machine pistol developed by Gordon B. MAC-10 (.45 ACP) with suppressor and without magazine.Дў.84 kg (6.26 pounds) empty w/o suppressorДў95 mm (11.6 inches) with stock retractedДҐ48 mm (1 foot 9.6 inches) with stock extendedДҐ45 mm (1 foot 9.45 inches) with stock retracted w/suppressorД§98 mm (2 feet 7.4 inches) with stock extended w/suppressorДЈ0-round detachable box magazine (.45 ACP)

Mac 10 9mm upper conversion