Established in 1980, Lewis Machine & Tool Company (LMT®) manufactures M4 type carbines, 7.62 x 51 DMR carbines/rifles, suppressors and M203 40mm grenade launchers. LMT is 100% US made and is an ISO 9001: 2015 registered US Government GSA approved contractor. LMT® designs and manufactures high quality firearms and continuously strives to exceed customer expectations. Our products are currently in service with the US Government and US SOCOM as well as 40 other countries around the world. Because Failure Is Not An Option.