JRail Picatinny Rail 20 MOA

Picatinny Rail Mark V Standard (Jrail) – Optimal scope placement

The Picatinny Rail Mark V Standard, known as the Jrail or The PEAK 44 Picatinny Rail (JRail), features an innovative design with a rear cutout that ensures optimal scope placement for hunters and shooters who demand the most from their firearms. The Jrail rear cutout enables the use of low rings, correct eye relief, and accommodates scopes with large ocular and magnification rings while preserving mounting rigidity and alignment.

Features & specifications

• Material: aerospace-grade aluminum for strength and low weight.
• Available angle: 20 MOA only.
• Weight: 2 oz. (with screws).
• Torque specification: 20 in/lbs recommended.
• Screw compatibility: #8-40 (Weatherby Model 307); #6-48 (Remington 700, Howa 1500, Weatherby Mark V & Weatherby Vanguard).
• Torx bit included for installation.
• Fits Picatinny/Weaver style rings.

Construction from aerospace aluminum gives the JRail a high strength-to-weight ratio, delivering a rigid, dependable mounting platform without unnecessary mass. The machined rear cutout is specifically intended to allow lower ring profiles and to clear large ocular bells, enabling correct cheek weld and consistent eye relief for precision shooting.

Installation is straightforward when following the torque and screw specifications for the firearm platform. The included Torx bit simplifies assembly, but using a torque wrench to achieve the specified 20 in/lbs is advised to prevent over-torquing and potential damage to the rail or receiver threads. At 2 oz. including screws, the JRail preserves the rifle's balance—an important factor for field hunting and competition scenarios.

Being available only in 20 MOA positions this rail for shooters who need built-in elevation for long-range adjustments. The 20 MOA slope reduces the amount of turret travel required to reach long-range zeros, streamlining field adjustments and improving overall ergonomics.

Compatibility with common Picatinny and Weaver rings makes the JRail practical for a wide range of setups. The listed screw options indicate direct fitment possibilities for Weatherby Model 307, Remington 700, Howa 1500, Weatherby Mark V and Weatherby Vanguard actions, minimizing the need for adapters and ensuring a clean, secure mount on those platforms.

The rear cutout is a practical feature that allows scopes with large ocular and magnification rings to sit lower without contacting the rail, preserving eye relief and sight picture. For hunters and precision shooters seeking a lightweight, robust and ergonomically optimized rail, the JRail combines aerospace materials, practical features and straightforward installation to deliver consistent performance in the field.