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The weapon is used for providing covering fire during assault by infantry. It resembles LMG 5.56 INSAS fixed butt in all features except that it has a foldable butt as well as a shorter length barrel to reduce the overall length so that it can be suitable for combat from ICV and can be used by paratroopers.
FUNCTION :
LMG 5.56 mm is a gas operated weapon with rotating bolt locking system which can fire in S.S./Auto system.
SAFETY:
The system is provided with mechanical & applied safety.
| Nomenclature | Unit | LMG 5.56 mm INSAS(Foldable Butt) |
| Calibre | mm | 5.56 |
| Wt. w/o Magazine |
kg | 5.87 |
| Wt. w/loaded Magazine |
kg | 6.37 |
| Length Overall | mm | 1025 |
| Barrel length | mm | 500 |
| Sight Radius | mm | 475 |
| Magazine Capacity | Rds | 30 |
| Fire selection | Rds | SS/Auto |
| Rate of fire (cyclic) | Rpm | 650 |
| Effective range | m | 600 |
| Muzzle velocity | m/s | 915 |
| Muzzle energy | J | 1740 |
| Recoil energy | J | 2.85 |
| i. | Light weight weapon |
| ii. | Commonality of parts amongst the LMG and Rifle 5.56 mm INSAS |
| iii. | Weapon is very compact, easy to handle, operate and simple to maintain. |
| iv. | Weapon robust enough to withstand rough usage. |
| v. | Furniture made of Plastic materials. |
| vi. | Fix Butt version also available. |
| vii. | Barrel Bore Chrome-plated for high barrel life and ease of maintenance. |
| viii. | Provided with mount for PNS and Telescope, with daylight telescope & passive night sight. |
| ix. | Provision for mounting on tripod on armed vehicles for Anti-Air Craft role & Monopod for fixed line firing. |
Ordnance Factory Board
Ayudh Bhawan
Government of India
Ministry of Defence
10A, S. K. Bose Road, Kolkata – 700 001, India.
Tel: 0091-33-2248 9027 / 2248 2103 / 2248 5077-80
Fax : 0091-33-2248 1748/2210 8235
Mail : ofbtrade@dataone.in
http://www.ofb.gov.in