LMT MARS Ambidextrous Complete AR-15 Lower Receiver - Titanium

Manufactured by Lewis Machine & Tool
Manufactured by Lewis Machine & Tool
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NOTE: Limit 20 per household. Quantities exceeding 20 will not allow checkout.

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to ffl@primaryarms.com.



LMT MARS Complete AR-15 Lower Receiver offers an innovative and reliable design for the MWS platform. This complete upper by LMT boasts the Modular Ambidextrous Rifle System (MARS®) offering a lower receiver with ambidextrous controls for the selector, magazine release and the bolt catch and release. It is designed to function seamlessly with the ambidextrous magazine and bolt catch mechanisms machined directly into the receiver. The MARS lower receiver body is forged from 7075-T6 aluminum providing a durable base for any weapon build. It boasts a Titanium Cerakote finish to withstand heavy use and abuse typical for the AR platform. It features an enhanced magazine well for more consistent reloads and a two-stage trigger group for dependable and repeatable operation.

LMT ensures functionality and versatility of this lower with a winter trigger guard, ergo grip, QD endplate and SOPMOD buttstock. This AR-15 lower receiver by LMT is fully assembled from the factory with Mil-Spec parts as well as the integral ambidextrous parts. It is designed to be as ergonomic as possible when paired with a LMT complete upper receiver for optimal fit and performance making the LMT MARS Complete Lower a great option for your next rifle build.

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

  • 5.56 action spring
  • Titanium Cerakote
  • Hard coat anodized black finish
  • Fully ambidextrous with integral controls
  • Enhanced magazine well
  • Two-stage trigger group
  • Winter trigger guard 
  • Ergo grip
  • QD endplate
  • SOPMOD buttstock

Lewis Machine and Tool Company has been providing US Military, law enforcement, and government agencies with high-quality weapon systems since 1980. LMT is dedicated to providing that same level of precision engineering to civilians as well and is even expanding into foreign military services. All LMT Defense products are 100% made in America and they are a qualified 2005 GSA supplier. Lewis Machine & Tool has also won many awards for their quality engineering and excellence in business.
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AssemblyComplete Assemblies
BrandLewis Machine & Tool
Caliber Marking5.56 NATO
Receiver Material7075-T6 Aluminum
Trigger Pin DiameterMIL-SPEC .154

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