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LMT Defense MARS-L MRP 5.56mm 16" Rifle – Monolithic Rail Platform
The Benchmark in Modular, Ambidextrous AR-15 Performance The LMT Defense MARS-L MRP 5.56 sets the standard for premium AR platforms with its patented Monolithic Rail Platform (MRP) upper and fully ambidextrous MARS-L lower. Engineered for unmatched rigidity, quick barrel changes, and operator-focused ergonomics, this 16" rifle delivers superior accuracy, heat management, and long-term durability—ideal for serious shooters, professionals, competition, home defense, or tactical use.
Patented Monolithic Design and Premium Components
- Monolithic Quad Rail Upper: One-piece forged aluminum receiver and handguard with continuous top Picatinny rail for zero flex and perfect optics alignment.
- 16" Chrome-Lined Barrel: 1:7 RH twist, chromoly construction, mid-length gas system for smooth, reliable cycling.
- Full Ambidextrous MARS-L Lower: Ambi bolt catch, magazine release, safety selector, plus LMT two-stage trigger, enhanced trigger guard, SOPMOD collapsible stock, and ergonomic grip.
- Ambidextrous Charging Handle & S-A Bolt Carrier Group: Full-auto rated for extreme reliability.
- Includes: One 30-round magazine, owner’s manual, and torque wrench for barrel changes.
The MRP design eliminates traditional handguard flex while allowing caliber or length swaps in under a minute—true modularity without compromise.
Key Specifications
- Model: MARS-L MRP (MRPMLK16-MARS)
- Caliber: 5.56×45 NATO
- Barrel: 16" Chrome-Lined Chromoly, 1:7 RH Twist
- Gas System: Mid-Length Direct Impingement
- Upper: Patented Monolithic Quad Rail MRP
- Lower: Full Ambidextrous MARS-L
- Trigger: LMT Two-Stage
- Stock: SOPMOD Collapsible
- Weight: ~6.5–7.0 lbs (unloaded)
- Capacity: 30 Rounds (one included)
- Best Uses: Home Defense, Range, Training, Competition, Tactical
Why the LMT MARS-L MRP Is the Choice at Battlehawk Armory
Built to the highest military standards in the USA, this rifle offers battlefield-proven performance with innovative features like full ambi controls and the quickest barrel change system available. Whether you need a rock-solid optics platform, left/right-handed versatility, or future-proof modularity, the MARS-L MRP exceeds expectations and outlasts standard ARs.
Elevate your rifle collection—Add the LMT Defense MARS-L MRP 5.56 16" to your cart at Battlehawk Armory today and experience true premium performance. In stock and ready to ship!
| Manufacturer | LMT DEFENSE |
| Model | MARS-LS |
| UPC | 815415016917 |
| SKU | MRPMLK16-MARS |
| Width | 12.0000 |
| Length | 42.0000 |
| Height | 6.0000 |
| Weight | 15.0000 |


