The LMT Defense MRP-H Quad Rail 12.75" AR10/.308 Complete Upper Receiver Bundle (BFCLMT-H308P16P) is a complete, ready-to-mount LMT AR-10 piston upper receiver assembly combining LMT's MRP-H Quad Rail 12.75" upper receiver chassis with LMT's .308 piston bolt carrier group and piston barrel for a fully assembled piston-operated .308 upper. This Boss Firearms exclusive bundle brings together LMT's best-in-class MRP-H heavy platform components in a single package. The MRP-H Quad Rail features LMT's patented Monolithic Rail Platform design — milled from a single piece of aerospace-grade aluminum — providing unmatched rigidity, accuracy, and rapid barrel-change capability. The 2-position adjustable short-stroke piston operating system ensures cycling reliability whether suppressed or unsuppressed.
Complete upper receiver assembly — barrel sold separately or available as a bundle. Requires compatible AR-10/.308 lower receiver. Lower receiver sold separately.
LMT Defense
LMT Defense
