Brand: LMT
Model: MARS-H 6.5 DMR-ARCA
Platform: AR-10
Caliber: 6.5 Creedmoor
Gas System: Rifle Length / Direct Impingement
Barrel Length: 20"
Barrel Description: Stainless Steel
Barrel Finish: Black
Capacity: 20rds
Twist Rate: 1:8
Muzzle Thread: 5/8 x 24
Muzzle Device: Flash Hider
Stock Description: DMR Stock
Stock Material: Polymer
Grip Description: LMT Ergonomic Textured Grip
Grip Material: Polymer
Furniture Finish: Black
Upper Receiver Description: MRP-H Upper
Upper Receiver Finish: Black
Lower Receiver Description: MARS-H Ambidextrous Lower
Lower Receiver Finish: Black
FCG: AXLE Precision Two-Stage
Rail Description: 15.3" Monolithic Rail Platform
Rail Material: Aluminum
Rail Finish: Black
Attachment Style: M-LOK
Safety: Ambidextrous
Bolt Carrier Group: S-A Bolt Carrier Group
Charging Handle: Ambidextrous

Features

The LMT Defense MARS-H rifle is a precision-focused semi-automatic platform chambered in 6.5, engineered for long-range accuracy, durability, and modular performance. Featuring a 20-inch barrel, this configuration maximizes velocity and ballistic efficiency, making it well-suited for extended-range shooting applications. Built on LMT’s patented Monolithic Rail Platform, the upper receiver is machined from a single piece of aerospace-grade aluminum, delivering exceptional rigidity while allowing for quick barrel changes with reliable return-to-zero capability.

The MARS lower receiver incorporates full ambidextrous controls, including bolt catch and release, magazine release, and safety selector, enabling intuitive operation from either side. Equipped with a two-stage trigger for a crisp and predictable break, the rifle enhances precision and shooter control. A free-float M-LOK handguard with a continuous top Picatinny rail provides extensive space for optics and accessories, while the adjustable stock allows for customization of length of pull and cheek height. Designed for precision and adaptability, this platform offers a refined solution for shooters demanding consistent performance at distance.

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Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

California 10+ Round Magazine Buyers: PSA values your freedom and constitutional rights above all else. However, PSA will not accept new orders nor will ship any order until the Ninth Circuit Federal Court of Appeals mandate becomes finalized. Once this mandate is finalized, we will start accepting new orders and ship 10+ round magazines to California Customers.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).