Skip to main content

Mars-L

Specs, features, and SKU for the LMT MARS-L 5.56×45mm ambidextrous assault rifle with MRP™ monolithic upper.

LMT MARS-L

The LMT MARS-L (Modular Ambidextrous Rifle System — Light) is LMT's 5.56×45mm NATO assault rifle built around the same patented MRP™ (Monolithic Rail Platform) upper and fully ambidextrous MARS lower as the MARS-H. The MRP™ is milled from a single solid piece of aerospace aluminum forging; the barrel is locked via two locking bolts that engage the barrel extension for a full 360°, making it user-removable in seconds with return to zero. Standard configuration ships with a 16" chrome-lined barrel and ambidextrous charging handle. The lower ships with 3 grip panels, one magazine, and owner's manual. SKU: CQBMLK16-MARS.

Specifications

Caliber

5.56×45mm NATO (.223 Rem)

Barrel

16" chrome-lined, 1:7 RH twist, A2 flash suppressor, low-profile gas block, proprietary coating, cryogenically treated

Upper Receiver

MRP™ Monolithic Rail Platform — single aerospace aluminum forging; 18.5" uninterrupted Picatinny top rail; 7-sided M-LOK handguard

Charging Handle

Ambidextrous

Lower Receiver

MARS ambidextrous lower — ambi bolt catch, mag catch, and safety selector

Trigger

LMT two-stage trigger

Stock

LMT SOPMOD collapsible stock on mil-spec buffer tube (dry film lubricated extension tube)

Grip

LMT ergonomic textured grip (3 grip panels included)

Other Controls

Winter trigger guard; QD sling endplate

Magazine

30-round 5.56×45mm detachable box magazine (1 included)

SKU

CQBMLK16-MARS

Key Features

  • Patented MRP™ upper: the only truly monolithic rail platform, milled from a single aerospace aluminum forging — no separate handguard tube or barrel nut

  • 360° barrel extension engagement: two locking bolts secure the barrel with a full 360° interface; barrel swaps in seconds with return to zero using the same barrel

  • 18.5" uninterrupted Picatinny top rail with 7-sided M-LOK attachment on remaining faces

  • MARS fully ambidextrous lower: ambi bolt catch, mag release, and safety selector operable from either side without repositioning the firing hand

  • Ambidextrous charging handle standard

  • Chrome-lined, cryogenically treated, proprietary-coated barrel; gas port drilled at an angle for increased durability and service life

  • MARS-L lower is also sold separately and is compatible with any mil-spec AR-15 upper

  • Made in Milan, Illinois, USA

Manufacturer Contact

For additional information, visit lmtdefense.com.

Did this answer your question?