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AAI LSAT (Lightweight Small Arms Technologies)

Light Machine Gun (LMG)

United States | 2010

"The AAI LSAT was developed during the 2000s to fill the need for a new battlefield Light Machine Gun form."

Authored By: Staff Writer | Last Edited: 06/04/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The Lightweight Small Arms Technologies (LSAT) program is a ongoing United States military joint-service initiative seeking to develop the next-generation of infantry small arms and their applicable ammunition types. The program began in 2004 and has since produced a Light Machine Gun (LMG) prototype platform to fire two distinct types of ammunition - one caseless and the other polymer-cased. The United States Army began actively testing the LMG in 2012 which resulted in AAI Corporation (Textron) being awarded a development contract for continued work on the technologies.

The LSAT Light Machine Gun is a product of this testing period. It saw design work begin in 2003 as a potential new Warfighter weapon. It sports a conventional external arrangement with a recoil-reducing shoulder stock, underslung pistol grip and trigger unit, and forend integrating Picatinny accessories rails. The barrel protrudes a manageable distance ahead of the weapon's body and is capped by a slotted brake. A hinged, folding bipod is affixed to the forend and optics are set over the receiver.

The weapon weighs under 10lb when empty and has an overall length of 36 inches. The barrel comes in two lengths, 16.5 inches and 12.5 inches, the latter making the LSAT a much more compact and manageable form reducing both overall length and operating weight.

Internally, there is a gas-piston system with push-through feed-and-ejection. The weapon is chambered for 5.56x45mm NATO in a cased or caseless form. It can reach 650 rounds-per-minute , has a muzzle velocity of 920 meters-per-second, and an effective firing range out to 1,000 meters. The feed system involves a 100- or 150-round (cased telescoped or caseless cartridge, respectively) along full-polymer linked disintegrating belts pulled from a soft ammunition pouch.

In 2018, the United States Army began looking for a successor to the storied M249 SAW (Squad Automatic Weapon) (based in the Belgian Fabrique Nationale FN "Minimi") with the work completed on the LSAT LMG making it an ideal candidate (a 7.62mm development has also been completed and tested). A new program has been drawn up for this requirement, succeeding the LSAT program as a result.

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Performance specifications presented assume optimal operating conditions for the AAI LSAT (Lightweight Small Arms Technologies). Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
3,280 ft
999.7 m | 1,093.3 yds
3,020 ft/sec
920 m/sec
Muzzle Velocity
The physical qualities of the AAI LSAT (Lightweight Small Arms Technologies). Information presented is strictly for general reference and should not be misconstrued as useful for hardware restoration or operation.
917 mm
36.10 in
O/A Length
418 mm
16.46 in
Barrel Length
9.81 lb
4.45 kg
Gas-Operated Piston
5.56x45mm NATO
100- or 150-round caseless (soft pouch).
Integrated Iron; Optional Optics.
Notable series variants as part of the AAI LSAT (Lightweight Small Arms Technologies) Light Machine Gun (LMG) family line.
LSAT (Lightweight Small Arms Technologies) - Base project designation.
Global customers who have evaluated and/or operated the AAI LSAT (Lightweight Small Arms Technologies). Nations are displayed by flag, each linked to their respective national small arms listing.

Contractor(s): AAI Corporation - USA
National flag of the United States

[ United States (trialed) ]
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Image of the AAI LSAT (Lightweight Small Arms Technologies)
Image from the Public Domain.

Going Further...
The AAI LSAT (Lightweight Small Arms Technologies) Light Machine Gun (LMG) appears in the following collections:
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