LMT Defense LMT Defense - MRP-H Quad Rail 12.75" AR10/AR308 Complete Upper Receiver Bundle BFCLMT-H308P16P

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.

• Bundle SKU: BFCLMT-H308P16P
• Platform: LMT MRP-H (AR-10/.308/7.62x51mm)
• Upper Receiver: LMT MRP-H Quad Rail 12.75" AR-10 Upper (LM308B1)
• Rail System: Mil-spec 1913 Picatinny quad rail on all four sides
• Caliber: 7.62x51mm NATO (.308 Winchester)
• Operating Method: Short-stroke piston, 2-position adjustable
• BCG: LMT .308 Piston Bolt Carrier Group included
• Construction: Single-piece aerospace aluminum monolithic upper receiver & handguard
• Barrel Change: T-30 Torx tool-assisted quick-change barrel system
• Finish: Type III mil-spec hard coat anodized
• Manufacturer: Lewis Machine & Tool (LMT Defense), Milan, Illinois, USA

Complete upper receiver assembly — barrel sold separately or available as a bundle. Requires compatible AR-10/.308 lower receiver. Lower receiver sold separately.