// Firearms · Custom Shop · LMT® MRP™
LMT® MRP™ Series
Complete LMT® Monolithic Rail Platform (MRP™) rifles and pistols built by the SOT Custom Shop in 5.56 NATO, 6mm ARC, 6mm MAX and .300 BLK — pairing the MRP™ upper with OE parts that LMT® does not offer together, to the same documented standard as every rifle we make.
// Models
Model line-up coming soon
Our LMT® MRP™ rifles and pistols are being photographed and catalogued now. Each build will have its own page here with photos, the full specification and pricing.
- 5.56 NATO
- 6mm ARC
- 6mm MAX
- .300 BLK
- Rifles & pistols
Why choose it
- Variants not available from LMT®: the MRP™ upper paired with OE barrels, gas systems, bolt carrier groups and furniture we choose and fit
- Every firearm fully gauged and function tested, including test firing, by the SOT Custom Shop
- The same MRP™-converted barrels we sell on their own — see LMT® MRP™ Compatible Barrels
// Warranty
Who warrants what
Many of our firearms are built around components from other makers — a Desert Tech Quattro-15 lower, an HM Defense Monobloc® barrel in an LMT® upper, a SOLGW barrel with a RIFLESPEED gas system, or LaRue, Geissele and Magpul parts. Here is how coverage works when that is the case.
- The complete firearm is ours. A firearm we manufacture is covered by the Second of Ten warranty as a complete firearm, whatever components went into it. If something goes wrong, come to us first.
- Each maker still stands behind its own part. A component maker’s warranty covers that maker’s part, on that maker’s terms — Desert Tech’s warranty, for example, applies only to the Quattro-15 lower. It sits alongside ours rather than replacing it, and we will help you use it where it applies.
- Custom Shop work on your own parts. When we work on a part you already own — a barrel conversion, a pin and weld, threading and the like — we warrant our work and the fit. Any warranty on the part itself is up to its maker, especially once it has been modified.
Coverage lengths and the full terms are in our Limited Warranty.
// Questions
Talk to us about this series
Tell us what you need and we will help you choose the right configuration.
LMT® is a registered trademark and MRP™ (Monolithic Rail Platform) is a trademark of Lewis Machine & Tool Company. These firearms are built by the SOT Custom Shop and are not manufactured or endorsed by Lewis Machine & Tool. Monobloc® and HMB™ are marks of HM Defense, LLC, used under license. Other product names are marks of their respective owners.
Bombproof by Design™
Precision // Purpose // Performance