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Colt MARS
Type	Personal defense weapon
Place of origin	United States
Production history
Designer	Colt
Designed	1997
Manufacturer	Colt
No. built	3
Specifications
Barrel length	10.5 in (270 mm)
Cartridge	5.56×30mm MARS 9x30mm MARS
Action	Gas-actuated, rotating bolt
Muzzle velocity	790 m/s (2,592 ft/s)
Effective firing range	300 meters
Feed system	30-round box magazine
Sights	1.5x optical sight

The Colt MARS (mini-assault rifle system) was an experimental, scaled-down variant of the M16 rifle tested by Colt as a personal defense weapon (PDW) around 1997. It was chambered for the experimental 5.56×30mm MARS cartridge which is a shortened 5.56×45mm NATO round. The 5.56×30mm cartridge fired a 55-grain (3.6 g) projectile at 790 m/s (2,591.9 ft/s). The rifle was patented in 1998.

See also

• Amogh carbine - AK-based PDW with similar cartridge.

AR-based Personal Defense Weapon

• AAC Honey Badger
• KAC PDW
• GA Personal Defense Weapon

References

1. Modern Personal Defense Weapon Calibers 005: The 5.56x30mm MARS By Nathaniel F - The Firearm Blog Archived June 3, 2023, at the Wayback Machine
2. ^ Christopher R. Bartocci (January 2009). "Colt's 5.56X30MM MARS (mini assault rifle system) program". Small Arms Review. 12 (4). Archived from the original on 2020-11-12. Retrieved 2023-07-09.
3. "(022) .22″ Colt MARS – Military Cartridges". web.archive.org. 2023-06-12. Retrieved 2024-03-09.
4. US patent 5827992, Michael R Harris & James F Taylor, "Gas operated firearm", issued 1998-10-27, assigned to Colt's Manufacturing Company 

v t e Modern personal defense weapons (PDWs) and cartridges
Personal defense weapons	AO-46 AAC Honey Badger AKS-74U Brügger & Thomet MP9 Bushmaster Arm Pistol CF-05 ČZW-438 Floro PDW FN P90 FN SCAR PDW & FN SCAR SC GA Personal Defense Weapon GAU-5A Aircrew Self Defense Weapon Gepard (submachine gun) Heckler & Koch G11 PDW Heckler & Koch MP5K-PDW Heckler & Koch MP7 Interdynamics MKR Knight's Armament Company PDW Magpul PDR MARS Interdynamics MKS Joint Venture Protective Carbine PP-19 Vityaz PP-2000 PP-90M1 QCW-05 Saab Bofors Dynamics CBJ-MS SR-2 Veresk ST Kinetics CPW SIG MCX Rattler
PDW-caliber pistols	FN Five-seven FK BRNO Field Pistol, PSD GSh-18 Heckler & Koch UCP Kel-Tec P50 MP-443 M&P 5.7 Pindad PS-01 PSA 5.7 Rock QSW-06 QSZ-92 QSZ-11 Ruger-57 SR-1 Vektor
PDW cartridges	4.38×30mm Libra 4.5×26mm MKR HK 4.6×30mm 5.56×21mm PINDAD 5.56×30mm MINSAS .224 Boz FN 5.7×28mm 5.8×21mm DAP92 6.5×25 CBJ-MS 7.5 FK 9×19 mm 7N31 9×21mm Gyurza 9×39mm

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