A submachine gun (SMG) is an automatic carbine, designed to fire pistol cartridges. It combines the automatic fire of a machine gun with the cartridge of a pistol. The submachine gun was invented during World War I (1914–1918), but the apex of its use was during World War II (1939–1945) when millions of the weapon type were manufactured. Today the submachine gun has mostly been replaced by the assault rifle for military use.
SMG-PK and PK-1: SMG PK is one of the most reliable & compact sub-machine guns in production at the Pakistan Ordnance Factories. Based on the Famous H&K delayed roller locked blowback system, this 9mm sub-machine gun can be employed for Close Quarter Battle (CQB) and is popular among para medics, military personnel, signal personnel, para jumpers, SSG officers on special duty, military police and civil law enforcing agencies. SMG-PK presents complete versatility and mobility coupled with the punching power of 9mm Para.
MG MP5A2, MP5P3: The sub machine gun MP5 is recoil operated, with stationary barrel and delayed roller locked bolt system. This is a magazine fed automatic weapon, can be shoulder-fired or from the hip. Ideal is use for close combat and para-military purposes.
Calico M960: The Calico M960 is a 9x19mm (Luger/Parabellum) caliber semi-automatic carbine (fully automatic versions are available to authorized law enforcement and military), manufactured by Calico Light Weapons Systems. Its unique features include its high-capacity, cylindrical, helical-feed magazine and retractable stock. This method allows magazine capacities of 50 and 100 rounds in a relatively small space, making it ideal for law enforcement and special operations units. One of the most interesting aspects of the pistol is that the rear sight is mounted as part of the plastic magazine shell.
TDI Vector: The Vector’s action was originally developed by French engineer Renaud Kerbrat. This action, the so-called Kriss Super V, is an articulated mechanism which allows the block and bolt to recoil off-axis into a recess behind the weapon’s magazine well. The Vector family of weapons is the first to use this action; the company claims the .45 ACP chambering was chosen to demonstrate that the action could “tame” such a powerful round. Variants chambered for the .40 S&W and 9×19mm Parabellum round are currently in development. All KRISS Vectors operate with standard Glock magazines with the .45 ACP caliber weapons using the 13 round G-21 magazine. The Vector’s barrel is in line with the shooter’s shoulder as in the M16 rifle, but also in line with the shooter’s hand as with many target pistols. Combined, these factors reduce felt recoil and muzzle climb by eliminating the distance between the shooter’s hand and the bore axis along with the action of the Super V Mechanism.
Spectre M4: The Spectre is a standard blowback firearm operating from a closed bolt; however it has some unusual features. The barrel shroud completely hides the barrel. The bolt is designed to pump air through the barrel shroud to provide additional cooling. The Spectre is hammer-fired and the trigger group is double action with a decocker. This allows the shooter to safely carry a round in the chamber and fire immediately as the double action trigger eliminates the need for cocking prior to shooting. A manual safety is provided. Unconventional 50-round capacity, four-column magazines are provided with the Spectre, but it can also use conventional magazines.
Saab Bofors Dynamics CBJ-MS: The Saab Bofors CBJ MS Personal-Defence Weapon (PDW) was first shown in August 2000. It is an unusual weapon in several respects, not least because it is meant to fulfil the roles of PDW, assault weapon and light support weapon (LSW). It is also capable of being field-converted to fire one of two types of ammunition. For the purely military role, the CBJ MS fires a new 6.5 × 25 mm CBJ cartridge; but by simply changing the barrel, it can fire 9 × 19 mm Parabellum ammunition for police, training and other operations. The 6.5 × 25 mm CBJ cartridge has the same overall dimensions as the 9 × 19 mm cartridge and generates the same level of firing impulse. The projectile is a tungsten insert held in a plastic sabot, fired at a high muzzle velocity (815 m/s) with the ability to defeat current and future body armors. It is claimed to be effective against lightly armored vehicles such as armored personnel carriers (APCs). Advantages claimed for the 6.5 × 25 mm CBJ cartridge include a high impact velocity, a high hit probability due to the flat trajectory, high energy transfer to the target, and low levels of barrel wear and corrosion. The cartridge case is aluminium. Each 6.5 × 25 mm CBJ cartridge weighs 4.5 g and has an overall length of 29.7 mm. The projectile weight is 2 g. The combat range of the cartridge is stated to be up to 400 m.
QWC-05: On October 2001 the Jianshe Industries (Group) Corporation (owned by the China South Industries Group) won a bid to produce the PLA’s next generation of submachine gun to replace the Type 79 and the Type 85 silenced submachine guns, beating out other competitors such as the Changfeng CF-05 due to its ease of construction and operation. At the 2005 International Police Equipment Expo in Beijing, Jianshe revealed their final product, a bullpup, blowback, open bolt submachine gun that externally resembled the QBZ-95 assault rifle which was then given the designation QCW-05. At the 2006 MILIPOL Expo, a smaller police and export version of the QCW-05 called the ‘Jianshe JS 9mm’, a silenced submachine gun, was revealed to the public. The ‘JS 9mm’ is chambered for the popular 9 x 19 mm Luger calibre. The QCW-05 is intended to be PLA’s frontline personal defence weapon for personnel in non-combat roles such as vehicle crews and aircrews who would normally be confined to quarters where a full assault rifle would be unwieldy and by specialized operation units such as the People’s Liberation Army Special Operations Forces and People’s Armed Police.
Heckler & Koch MP7: The MP7 essentially operates like a scaled-down assault rifle, with the same action as HK’s G36, a short stroke piston. The 4.6x30mm ammunition is virtually exclusive to the gun (save for the now cancelled H&K UCP and a planned variant of the Brügger & Thomet MP9) and also offers low recoil. This ammunition is unique among submachine guns in that the bullet is made almost entirely of a hardened steel penetrator instead of softer copper or lead. The weapon allows a conventional 20-round, 30-round, or 40-round box magazine to be fit within the pistol grip (the 20-round magazine being comparable in size to a 15-round 9mm magazine, while the 40-round magazine compares to a 30-round 9 mm magazine). The weapon features an ambidextrous fire selector, bolt catch lever and magazine release. It has an extendable stock and a folding front grip; it can be fired either one-handed or two-handed. It is compact and light, due to the use of polymers in its construction.
Heckler & Koch UMP: The UMP is a blowback operated, magazine-fed submachine gun firing from a closed bolt. As originally designed, the UMP is chambered for larger cartridges than other submachine guns like the MP5, to provide more stopping power against unarmored targets (with a slightly lower effective range) than the 9x19mm MP5 provides. A larger cartridge produces more recoil, and makes control more difficult in fully automatic firing. To mitigate this, the cyclic rate of fire was reduced to 650 rounds/min (600 rounds/min for the UMP45), which makes it one of the slower firing submachine guns on the market. The UMP9 (the 9x19mm version of the UMP) is almost 0.2 kg (almost .5 lb) lighter than its MP5 counterpart. Its predominantly polymer construction reduces both its weight and the number of parts susceptible to corrosion. The UMP is available in four trigger group configurations, featuring different combinations of semi-automatic, 2-round burst, fully automatic, and safe settings. It features a side-folding butt stock to reduce its length during transport. When the last round of the UMP is fired, the bolt locks open, and can be released via a catch on the left side. The standard viewing sights comprise an aperture rear sight and a front ring with a vertical post. It can mount four Picatinny rails (one on top of the receiver, and one on the right, left, and the bottom of the hand guard) for the attachment of accessories such as optical sights, flashlights, or laser sights. Vertical fore-grips can be attached to the bottom rail for increased controllability during burst and automatic fire.
Magpul FMG-9: The Magpul FMG-9 is a prototype for a new generation of folding submachine guns, designed by Magpul Industries in 2008. Like other folding machine guns, it would be used for concealed carry and can be disguised as anything from a small package to an extra laptop battery. It is made out of a light-weight polymer material rather than metal, making it very light and easy to carry. It is also small enough even to fit in the back pocket of most everyday pants. It was developed for potential use by personal protection details such as the United States Secret Service. It is still a prototype and may or may not be made in large numbers for law enforcement agencies. The prototype uses a semi-automatic firing mechanism from a 9mm Glock 17 pistol. With modification, the FMG-9 could also use the mechanism of a Glock 18 machine pistol for Class 3 or law enforcement use.
Colt 9mm SMG: The Colt 9mm SMG is a closed bolt, blowback operated SMG, rather than the conventional direct impingement gas operation of the standard 5.56x45mm M16 type rifle. The overall aesthetics are identical to most M16 type rifles. Changes include a large plastic brass deflector mounted toward the rear of the ejection port. Factory Colt 9mm SMGs are equipped with a 10.5 inch length barrel and have an M16 style upper receiver, which means they feature a fixed carry handle, no forward assist and A1 sights (with 50 and 100 meter settings). The magazine well of the receiver is modified using a special adaptor to allow the usage of smaller 9mm magazines. The magazines themselves are a copy of the Israeli UZI SMG magazine, modified to fit the Colt and lock the bolt back after the last shot.
FN P90: The P90 is a selective fire, straight blowback-operated weapon with a cyclic rate of fire of 900 RPM (rounds per minute). The weapon is chambered for FN’s 5.7×28mm ammunition, and although it was developed and initially marketed as a personal defense weapon, it could also be considered a submachine gun or compact assault rifle. Its unusual shape is based on extensive ergonomic research. The weapon is grasped by means of a thumbhole in the frame that acts as a pistol grip, as well as an oversized trigger guard that acts as a foregrip for the shooter’s support hand. The P90 fires from a closed bolt for maximum accuracy, and its design makes extensive use of polymers for reduced weight and cost. Overall, the weapon is relatively lightweight, weighing 2.5 kg (5.6 lb) empty, or 3 kg (6.6 lb) with a loaded 50-round magazine. The P90 is notable for being fully ambidextrous—it can be operated by right or left-handed shooters with equal ease, and without making any modifications to the weapon. FN Herstal has described it as the “first fully ambidextrous individual automatic weapon. “The charging handle, magazine release and backup iron sights are symmetrically distributed on both sides of the weapon, and the firing selector is located directly at the foot of the trigger, where it can be operated from either side by the shooter’s trigger finger or support hand thumb. When fired, the P90 ejects spent cartridge casings downward through a chute located behind the grip, so spent cases are kept out of the shooter’s line of sight.