Lewis Machine & Tool Company (LMT) was founded in 1980 to provide the US military, law enforcement and government agencies with high quality weapons, components, and modular weapon systems. Since the beginning, the LMT mission has been to meet their customer's expectations of quality, price and delivery of precision machined parts, weapon systems, assemblies and engineering services.

LMT continues to serve the US military, law enforcement and government agencies, and has expanded to include foreign military services as well as commercial retailers. LMT's engineers design and fabricate complete weapon systems, grenade launchers, and Monolithic Rail Platform (MRP) systems specifically for the demanding environments that the military and law enforcement face on a day-to-day basis whether in urban environments or in desert combat situations. LMT produces a full line of accessories and components for the commercial market complementing any M16 or AR15 type weapon.

In response to the growing demand for quick-change barrel systems, Karl Lewis, President of LMT, designed the Monolithic Rail Platform. The MRP is a one-piece lightweight upper receiver with an integral forend. Mil-Std 1913 rails run from front to the forend on each of the four sides. The MRP comes in two different lengths, one traditional rifle and the other for Close Quarter Battle (CQB). With four rails, the MRP offers plenty of places for accessories such as optics and lights.

Lewis Machine & Tool Company recently qualified as a 2005 GSA supplier. As a US Government Services Administration (GSA) qualified vendor, LMT products are available to over 300,000 Federal users worldwide.