LMT MARS-L 5.56 AR-15 Rifle - 16"

Manufactured by Lewis Machine & Tool
Manufactured by Lewis Machine & Tool
(0) No Reviews yet

Out of Stock

For individual Officer, First Responder, and Military pricing please make sure you are logged in. for details

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.



The LMT MARS-L Rifle is unique because it utilizes an MRP or Monolithic Rail Platform upper receiver which incorporates the upper receiver and handguard into a single part that is CNC machined from a solid piece of aerospace-grade, heavy duty aluminum. The MRP system offers an unparalleled optic mounting platform since there is no movement due to recoil (point of impact shifts) whatsoever between the upper and handguard, unlike most AR-15 platforms. Using two locking bolts and a barrel nut, the 16” 41V50 CMV Steel barrel is held into place with 360 degrees of force. This method of barrel attachment lets the user quickly conduct barrel swaps (different calibers and lengths) with a T-30 Torx bit and torque wrench. The LMT MARS-L Rifle is a modular, accurate, and high performing AR-15 built by the company that’s made weapons for battle fields for over 40 years, Lewis Machine & Tool Company.

  • 5.56 NATO
  • 16” Chromed Barrel
  • 1:7 Twist Rate
  • 14.25-inch Full-Length Picatinny Rail
  • Monolithic Rail Platform
  • SOPMOD Stock
  • Ambidextrous Lower
  • Ambidextrous Charging Handle
See More


Barrel Coating
Barrel Length16
Barrel LiningChrome
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandLewis Machine & Tool
Caliber Gauge5.56 NATO
Gas System TypeDirect Impingement
Magazine Capacity30
Muzzle DeviceA2 Flash Hider
Thread Pattern1/2 X 28
Twist Rate1:7
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

No reviews available

Be the first to Write a Review