Eberlestock Mainframe II Military Green

Eberlestock Mainframe II™ – Military Green (F12MJ)

Built on over a decade of proven field performance, the Eberlestock Mainframe II™ is the next evolution of one of the most trusted modular hunting platforms ever created. Designed as the backbone of the Hunt EMOD™ system, this lightweight aluminum frame delivers exceptional durability, adaptability, and comfort for backcountry hunters, tactical users, and long-range professionals alike.

The Mainframe II maintains the rugged strength and integrated meat shelf that made the original frame legendary, while introducing key upgrades that improve ventilation, load distribution, and overall carry comfort. The addition of the Contour Shoulder Harness, Cradle Hip Belt, and elevated load lifters helps transfer weight efficiently to your hips, reducing fatigue and allowing you to move confidently over long distances.

Additional side attachment loops and 20mm compression straps with auto-locking buckles provide expanded customization options, letting you secure heavy gear close to your core for improved balance and stability. Designed for modular flexibility, the Mainframe II pairs seamlessly with Vapor or Brooks series packs and accepts accessories like rifle scabbards or Batwings, allowing you to tailor your setup to any mission or environment.

Comfort & Fit

The Contour Shoulder Harness offers micro-adjustable height settings for a precise torso fit, promoting better posture and airflow through breathable air-mesh padding. Elevated load lifters help keep weight close to your center of gravity for a lighter, more natural carry feel.

The Cradle Hip Belt features built-in stabilizers and a silicone lumbar grip that keeps the pack securely positioned while preventing clothing from shifting. Pull-forward tightening straps allow easy adjustment on the move, while rear stabilizers minimize sway during demanding terrain.

Features:

• Aluminum 90-degree shelf frame with integrated meat shelf

• Micro-adjustable Contour Shoulder Harness suspension system

• Cradle Hip Belt with built-in stabilizers and silicone lumbar grip

• Elevated load lifters for improved weight balance

• Rifle scabbard ready design

• Compatible with all current Hunt EMOD™ packs and accessories

• Five columns of laser-cut MOLLE webbing

• Additional side loops for expanded customization

Specifications:

• Model: F12MJ

• Color: Military Green

• Weight: 5 lbs 2 oz

• Dimensions: 27” × 11”

Engineered for versatility and long-haul comfort, the Eberlestock Mainframe II™ provides a rugged, customizable foundation for serious backcountry pursuits and demanding tactical applications.