LMT MARS-L Forged Stripped Ambidextrous Lower Receiver
The Lewis Machine and Tool MARS-L stripped lower receiver is an excellent starting point for a hard-use rifle.
The LMT® Modular Ambidextrous Rifle System (MARS®) lower receiver offers ambidextrous controls to include: selector, magazine release and bolt catch and release. An enhanced flared magazine well and 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.
Features:
- Forged 7075 aluminum
- Hardcoat anodized
- Compatible with Mil-Spec AR-15 lower parts
- Precise tolerances




Kenneth B. (verified owner) –
Awesome lower for a more than fair price. Sold by a hell of a team at Roof Top Defense. They are fast, helpful and stock hard to find quality parts.
Hunter (verified owner) –
Bought on a Sunday shipped on Monday. Had it in KS and on my workbench by Wednesday evening. Receiver is great and Rooftop customer service is fast and easy. Will definitely be purchasing more from this site.
Andres H. (verified owner) –
Quick shipping and great price…can’t really beat that.
Nolan B. (verified owner) –
Great customer service and communication!!
Jeffrey A. (verified owner) –
Great price and quick shipping on a quality product. Fit and function were spot on.