LMT MARS-H 18″ 7.62/.308 DMR ARCA MLOK Rifle

LMT MARS-H 18″ 7.62/.308 DMR ARCA MLOK Rifle

New for 2026, the MARS-H DMR rifles now have an ARCA interface integrated into the handguard.

Utilizing the LMT® patented Monolithic Rail Platform, MRP™.  The only true monolithic rail platform, milled from a single solid piece of aerospace aluminum forging. It utilizes two locking bolts accessible from the side of the receiver to lock in the barrel extension. This patented technology engages the barrel extension for a full 360 degrees around the extension and makes the barrel removable within seconds with a return to zero of the same barrel. One receiver can utilize numerous barrels of varying length, material, and caliber.

Based off our 15.3″ MRP-H M-LOK upper receiver, now featuring an integrated ARCA rail at the rear of the handguard.  The upper receiver has 22″ of picatinny rail on the 12 o’clock position while the remaining 7 sides provide M-LOK compatible attachment points.

MARS-H barrels utilize a low profile gas block and straight gas tube.  They possess proprietary coating and are cryogenically treated for long term durability.

The MARS-H ambidextrous lower receiver features our EDM machined two-stage trigger, winter trigger guard, endplate with QD swivel point, LMT® ergonomic textured grip, and SOPMOD stock.  The ambidextrous features include bolt catch and release, magazine catch, and safety selector.  As with all LMT® lower receivers, the extension tube is coated with dry film lubricant.

This weapon system comes complete with magazine, owner’s manual, and 3 rail panels

Specifications
Barrel: 18″ 1:8 Twist
Caliber: 7.62 NATO / .308 Winchester

Regulations
This is a regulated item and requires shipment to a Federal Firearms License holder. After you have placed your order, please have your order number and a copy of your preferred store’s FFL emailed to info@rooftopdefense.com to avoid delays. After I have received their FFL, I will ship your order as soon as possible!