LMT MRP AR-15 Monolithic Upper Receiver
This video provides an in-depth look at the Lewis Machine & Tool (LMT) AR-15 MRP (Monolithic Rail Platform) upper receiver. The presenter, Paul Levy, highlights its construction from a single piece of forged aerospace aluminum, creating a monolithic receiver and handguard. A key feature discussed is the proprietary locking system that secures the barrel using two bolts accessible from the right side, enabling quick and convenient changes to calibers, barrel lengths, materials, and gas systems.










