LMT M203 2003 Rail Mounted Grenade Launcher 40MM 12″ Barrel

$1,600.00 $1,349.95


The LMT M203 2003 Rail Mounted Grenade Launcher 40MM with 12″ barrel is a lightweight, single-shot, breech-loaded 40mm weapon specifically designed to be attached to any picatinny rail or as a stand-alone weapon system.

It creates a versatile combination weapon system, capable of firing both 5.56/223, 7.62/308, 6.8 SPC, 300 Blk, 243 Win and 6.5 Creedmoor ammunition as well as the complete range of 40MM high explosive and special purpose ammunition. A complete self-cocking firing mechanism, including barrel latch, trigger and positive safety lever is included in the receiver, which allows the M203 to be operated as a completely independent weapon even though attached to the weapon.

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  • 100% Made in the USA Products
  • Order before 11:30am for same day shipping


The M203 provides rifles with breaching, defilade, and area engagement capabilities, making it an essential tool for every modern army.

  • Proprietary Launcher Designed for use with the LMT (Lewis Machine & Tool) MRP (Monolithic Rail Platform) and other 1913 / STANAG Rail Systems
  • Suitable to handle the recoil of the 40mm round.
  • Easy to Install
  • Field Removable
  • Low-Profile Design
  • Twist Rate is 1:44″


  • MFG: LMT
  • MFG MDL: L2D
  • MDL: M203
  • TYPE: Grenade Launcher
  • BARREL: 12″ 1:44″ RH
  • FINISH: Black
  • 7075-T6 Aluminum

NOTE: Federal law requires all firearms and NFA items be shipped to a valid Federal Firearms License (FFL) holder.


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