LMT Defense MRP-L Quad Rail 13.25" AR15 Complete Upper Receiver LMTQuadL16AS

LMT Defense
SKU:
LMTQuadL16AS
$1,700.00
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The LMT Defense MRP-L Quad Rail 13.25" AR-15 Complete Upper Receiver (LMTQuadL16AS) is a factory-complete LMT upper receiver assembly — including the 13.25" quad rail monolithic upper receiver chassis, a 16" 5.56 NATO chrome-lined barrel, LMT enhanced full-auto bolt carrier group, and LMT ambidextrous charging handle. This is a complete, ready-to-shoot upper receiver group that drops directly onto any mil-spec AR-15 lower receiver. The quad rail system provides full Picatinny MIL-STD-1913 attachment points on all four sides for maximum accessory versatility. Milled from a single piece of aerospace-grade aluminum, the MRP upper is the only true monolithic rail platform available — providing the rigidity, accuracy, and modularity that has made LMT the choice of military and law enforcement worldwide.

  • Part Number: LMTQuadL16AS
  • Platform: LMT MRP-L AR-15 (drop-in for mil-spec AR-15 lower receivers)
  • Caliber: 5.56x45mm NATO (.223 Remington)
  • Barrel: 16" chrome-lined, 1:7 RH twist
  • Gas System: Mid-length, direct impingement
  • Upper/Rail: 13.25" Quad Rail monolithic one-piece aluminum chassis
  • Rail System: MIL-STD-1913 Picatinny on all four sides
  • BCG: LMT Enhanced Full-Auto Bolt Carrier Group included
  • Charging Handle: LMT Ambidextrous charging handle included
  • Muzzle Device: A2 birdcage flash hider
  • Barrel Locking: Proprietary T-30 Torx two-bolt system (quick-change barrel capable)
  • Finish: Type III mil-spec hard coat anodized
  • Manufacturer: Lewis Machine & Tool (LMT Defense), Milan, Illinois, USA

Complete upper receiver group — lower receiver sold separately. Factory-built and test-fired by LMT for function and accuracy.