The Leupold Integral Mounting System (IMS) Mark AR Rail Mount Matte (MPN: 181347, Model: LE181347) is a rugged, one-piece cantilever riser base engineered specifically for modern sporting rifles and flat-top receivers. Designed to address the common alignment and eye-relief challenges associated with mounting optics on AR-style platforms, this monolithic riser raises the mounting plane to facilitate a more natural cheek weld and improved line of sight. It features a specialized STANAG fit, which increases the contact surface area with standard MIL-STD-1913 Picatinny rails for enhanced stability under recoil. Key Features of the Leupold Mark AR Rail Mount:
  • Monolithic One-Piece Construction: Provides a highly stable, continuous mounting platform that eliminates the alignment issues frequently experienced with traditional two-piece bases.
  • Five-Bolt Clamp System: Utilizes a robust five-bolt design on the side plate to guarantee a secure, slip-free attachment to the receiver rail.
  • Triple Recoil Lugs: Features three integrated recoil lugs on the underside to distribute recoil forces evenly, helping to maintain a reliable zero during repeated firing.
  • Forward Cantilever Design: Extends the mounting surface forward, allowing shooters to position scopes and red dot sights further down the receiver to achieve optimal eye relief.
  • Aircraft-Grade Aluminum: Machined from durable, lightweight aircraft-grade aluminum and finished with a non-reflective matte black coating for corrosion and wear resistance.
Technical Specifications:
  • Manufacturer Part Number (MPN): 181347
  • Model: LE181347
  • Material: Aircraft-grade aluminum
  • Finish: Matte Black
  • Compatibility: Fits standard MIL-STD-1913 Picatinny rails (STANAG fit)
  • Elevation Increase: Adds approximately 0.60 inches (15.2 mm) of height to the mounting platform
  • Length: Approximately 9.25 to 9.40 inches (23.5 to 23.9 cm)
  • Width: Approximately 2.50 to 2.95 inches (6.3 to 7.5 cm)
  • Height: Approximately 0.90 inches (2.3 cm)
  • Weight: Manufacturer specification of 2.2 ounces (62.4 grams); real-world weight is approximately 4 ounces (113 grams)
  • Power Source: Passive mechanical hardware (no electrical components or batteries required)
Who It Is For:

The Leupold Mark AR Rail Mount is designed for Australian hunters, target shooters, and tactical sports enthusiasts using modern sporting rifles who require a reliable, high-performance link between their firearm and precision optics. It is ideal for shooters using flat-top receivers who need to raise their scopes, holographic sights, or red dot optics to achieve proper eye alignment and a comfortable shooting posture. Because this product is a fully mechanical, non-electronic firearm accessory, it does not require Australian electrical compliance certifications such as SAA or RCM. It is a highly durable solution for individuals seeking to optimize their rifle setup while adhering to local state and federal firearm accessory regulations.

SKU LD38705LP
Model # LE181347
Brand Leupold
Shipping Weight 1.0000kg

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