The MARS-H brings the innovative design of our MARS-L to the MWS® platform.

The LMT® Modular Ambidextrous Rifle System (MARS®) lower receiver offers ambidextrous controls to include: selector, magazine release and bolt catch and release. The ambidextrous magazine and bolt catch mechanisms are machined directly into the receiver and have been designed to function as ergonomically as possible.

This “stripped” version comes only with the ambidextrous components installed.

LMT® MWS® lower receivers are only guaranteed compatible with our upper receivers. Any other brand may not fit or function correctly.

Compliance Notice (Washington Residents):
This item is a frame or receiver only and is not a complete or operable firearm. Washington law regulates the manufacture, importation, distribution, sale, and offer for sale of “assault weapons” as defined in RCW 9.41.010 and RCW 9.41.390.

A frame or receiver standing alone is a part of a firearm. Any future assembly must comply with all applicable federal, state, and local laws. Manually operated firearm configurations (e.g., bolt, lever, slide, pump) are excluded from the statutory definition of an “assault weapon.”