LMT Defense MLKMWS 20" 6.5 MARS Semi-Auto Rifle System MLK6520LA-MARS

The LMT Defense MLKMWS 20" 6.5 Creedmoor MARS Semi-Auto Rifle System (MLK6520LA-MARS) is LMT's premier long-range precision semi-automatic battle rifle, combining the exceptional ballistics of the 6.5 Creedmoor cartridge with LMT's combat-proven MARS-H ambidextrous lower and the new ARCA-integrated 15.3" M-LOK upper receiver chassis. New for 2026, the MARS-H DMR series now features an integrated ARCA rail at the rear of the handguard for seamless tripod and bipod mounting without additional accessories. Utilizing LMT's patented Monolithic Rail Platform — the only true monolithic rail platform milled from a single solid piece of aerospace aluminum forging — this rifle delivers exceptional accuracy, full-360-degree barrel engagement for superior heat dissipation, and rapid barrel-change capability with return to zero.

• Part Number: MLK6520LA-MARS
• Caliber: 6.5 Creedmoor
• Barrel: 20", 1:8 twist, chrome-moly, cryogenically treated, proprietary coating
• Upper Receiver: LMT MWS 15.3" M-LOK upper with ARCA-integrated rail (new 2026)
• Rail: 22" Picatinny at 12 o'clock; M-LOK on remaining 7 sides
• Lower Receiver: LMT MARS-H ambidextrous — ambidextrous bolt catch/release, magazine catch, safety selector
• Operating Method: Direct impingement
• Trigger: LMT EDM two-stage trigger
• BCG: Semi-auto bolt carrier group
• Charging Handle: LMT ambidextrous
• Buttstock: LMT SOPMOD adjustable with QD endplate
• Grip: LMT ergonomic textured grip
• Trigger Guard: Winter trigger guard
• Includes: Magazine, owner's manual, and 3 rail panels
• Manufacturer: Lewis Machine & Tool (LMT Defense), Milan, Illinois, USA

Firearm — FFL Transfer Required. This complete firearm must be transferred through a licensed FFL dealer. After ordering, have your FFL dealer send their license to Boss Firearms to initiate the transfer. Not available in CA, CO, CT, DC, HI, IL, MA, NJ, NY, VT, or WA.