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The Mainframe II Brooks 3500 System Bundle pairs Brooks' aluminum 90-degree shelf frame with the 3500 hunting pack, joined by the Hunt EMOD mounting system. The pack clicks onto the frame for the carry in and detaches so you can load quarters on the shelf and strap the bag back over the top. The frame keeps heavy loads tight to your back and low on the hips, with an adjustable harness and a stabilizer hip belt. It suits weekend mule deer and elk hunters who want one modular system for both the hunt and the pack-out, and it competes with other meat-hauling frame-and-bag setups on modularity rather than on weight alone.
In stock
Lowest price we've seen: $457.30 on Nov 12 at Eberlestock USA. Tracked across 1 store since Nov 12.
Rated 5 out of 5 across 58 ratings, buyers treat the Mainframe II and 3500 as a solid, adaptable hunting setup. The modular EMOD mounting and the shelf's pack-out capability come up as the reasons it earns its keep.
The Mainframe II Brooks 3500 System Bundle pairs the Mainframe II pack frame with the Brooks 3500 pack. It is sized for day hunts and light, multi-day trips. Both pieces use the Hunt EMOD system, so the pack mounts straight to the frame and detaches quickly.
The Mainframe II has an aluminum 90-degree shelf for pack-outs. You detach the Brooks, load quarters onto the shelf, and reattach the pack over the top. This keeps the heaviest weight close to your back and low on your hips, with nothing hanging below the belt line.
Both pieces run the entire Hunt EMOD system. You can add an EMOD Lid, Bolt-Action Scabbard or Batwings, or use just the frame and bag. Five columns of laser-cut MOLLE and additional side attachment loops give room to build your setup.
