LMT MARS-H Factory Complete Lower Receiver .308 / 6.5 Creedmoor - All-Black, SOPMOD Stock, Ambi Controls - LHS16868

Premium Heavy-Duty Ambidextrous Modular Platform

Designed and manufactured by Lewis Machine & Tool (LMT Arms) in Eldridge, Iowa, the MARS-H (Modular Ambidextrous Rifle System - Heavy) lower receiver is regarded as one of the premier heavy-caliber AR-10/SR-25 pattern platforms available. Machined from a solid forging of 7075-T6 aluminum, the MARS-H is engineered specifically to accept high-power cartridges such as .308 Winchester (7.62x51mm NATO) and 6.5 Creedmoor.

The hallmark of the MARS system is its true, fully mirrored ambidextrous control suite, including dual bolt catch/release levers, dual magazine release buttons, and an ambidextrous safety selector—all integrated directly into the receiver forging rather than added as aftermarket bolt-ons. Serial number LHS16868 is an all-black factory complete lower assembly featuring LMT's heavy-duty receiver extension, an LMT SOPMOD collapsible stock, an LMT ergonomic pistol grip, and a factory-installed two-stage trigger system. Offered in excellent condition.

Condition and Action Highlights

Overall Status: Rated in excellent condition overall, showing clean, uniform hardcoat anodizing, crisp mechanical spring tension across all ambidextrous controls, and negligible handling marks.

Finish & Metalwork: Factory matte black Type III Class 2 hardcoat anodized finish exhibits rich, uniform coverage across all surfaces, showing virtually no storage or assembly wear.

Ambidextrous Controls: Fully operational true-ambidextrous mechanics:

Factory LMT ambidextrous bolt catch and bolt release controls function smoothly with crisp spring reset.

Factory ambidextrous magazine release mechanism engages firmly.

Factory ambidextrous safety selector switches cleanly between Safe and Semi positions.

Furniture & Lower Components:

Outfitted with an authentic LMT SOPMOD collapsible buttstock in black with dual waterproof battery storage tubes and QD sling swivel sockets.

Fitted with an LMT textured ergonomic pistol grip in black.

Receiver extension features an LMT heavy carbine buffer and spring assembly tuned for heavy-caliber gas systems.

Trigger & Lockup: Equipped with an OEM LMT two-stage fire control group offering a smooth initial take-up and a clean, predictable break.

Technical Specifications

Manufacturer: Lewis Machine & Tool Company (LMT Arms - Eldridge, IA)

Model: MARS-H Factory Complete Lower Receiver

Serial Number: LHS16868

Caliber Compatibility: .308 Win / 7.62x51mm NATO, 6.5 Creedmoor, .243 Win (SR-25 / DPMS Pattern)

Receiver Material: Forged 7075-T6 Aluminum w/ Hardcoat Anodized Finish

Color Finish: All-Black

Controls: Fully Ambidextrous (Dual Bolt Catch/Release, Dual Mag Release, Ambi Safety)

Stock: LMT SOPMOD Collapsible Stock (Black)

Grip: LMT Ergonomic Textured Pistol Grip (Black)

Fire Control Group: Factory LMT Two-Stage Trigger