LMT MARS-L PDW Complete Lower Receiver

LMT MARS-L PDW Complete Lower Receiver

The Lewis Machine & Tool MARS-L PDW Complete Lower Receiver is a purpose-built, ambidextrous AR-15 foundation engineered for speed, control, and compact performance. Designed around the advanced Modular Ambidextrous Rifle System (MARS-L), this complete lower delivers full bilateral functionality, allowing seamless operation from either side of the firearm—ideal for dynamic environments where efficiency and adaptability matter.

Outfitted with a factory-installed LMT two-stage trigger group, PDW-style buttstock, and ergonomic control components, this lower arrives ready to perform straight out of the box. The integrated ambidextrous selector, magazine release, bolt catch, and bolt release are precision-machined directly into the receiver, ensuring smooth, intuitive manipulation under pressure.

With its enhanced flared magazine well for faster reloads and a compact PDW stock that reduces overall footprint, the MARS-L PDW Complete Lower is built for shooters who value mobility without sacrificing control. Compatible with standard AR-15 upper receivers chambered in 5.56 NATO, .223 Remington, and .300 AAC Blackout, it delivers a high-performance, mission-ready platform trusted for serious use.

Fully Ambidextrous Control System
Integrated selector, magazine release, bolt catch, and bolt release allow efficient operation from either hand, improving speed and versatility.

Factory-Installed Two-Stage Trigger
Includes an LMT two-stage trigger group for crisp, consistent break and enhanced shooting precision out of the box.

PDW Compact Stock Design
Features a PDW-style buttstock that significantly reduces overall length for superior maneuverability in tight spaces.

Enhanced Flared Magazine Well
Enlarged magwell geometry supports faster, smoother reloads with improved magazine guidance under stress.

Ergonomic Control Package
Comes equipped with an ergonomic pistol grip and winter trigger guard for improved handling in varied conditions.

Integrated QD Sling Mounting
QD sling endplate provides secure, quick-attach sling compatibility for improved carry and retention options.

Specifications

• Caliber Compatibility: 5.56 NATO / .223 Remington / .300 AAC Blackout
• Platform: AR-15 Pattern
• Controls: Fully Ambidextrous (Selector, Magazine Release, Bolt Catch, Bolt Release)
• Trigger: LMT Two-Stage Trigger Group (Factory Installed)
• Stock Type: LMT PDW Buttstock
• Grip: Ergo Pistol Grip
• Trigger Guard: Winter Trigger Guard
• Endplate: QD Sling Endplate
• Magazine Well: Enhanced Flared Design
• Overall Length (Lower Assembly): 12.75 inches