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Product Name Price Qty
4CU - 1.75 (Green)
(Backordered - Ships in 5-7 Days)
Reg: $64.95 Sale: $51.95

Backordered - Ships in 5-7 Days

4CU - 0.5 (Red)
(Ships in 24 hours)
Reg: $64.95 Sale: $51.95
4CU - 1 (Gold)
(Ships in 24 hours)
Reg: $64.95 Sale: $51.95
4CU - 1.5 (Silver)
(Backordered - Ships in 5-7 Days)
Reg: $64.95 Sale: $51.95

Backordered - Ships in 5-7 Days

4CU - 2 (Red)
(Backordered - Ships in 5-7 Days)
Reg: $64.95 Sale: $51.95

Backordered - Ships in 5-7 Days

4CU - 2.5 (Gold)
(Backordered - Ships in 5-7 Days)
Reg: $64.95 Sale: $51.95

Backordered - Ships in 5-7 Days

4CU - 3 (Purple)
(Ships in 24 hours)
Reg: $67.95 Sale: $54.35
4CU - 3.5 (Blue)
(Backordered - Ships in 5-7 Days)
Reg: $69.95 Sale: $55.95

Backordered - Ships in 5-7 Days

4CU - 4 (Silver)
(Backordered - Ships in 5-7 Days)
Reg: $74.95 Sale: $59.95

Backordered - Ships in 5-7 Days

4CU - 0 (Blue)
(Ships in 24 hours)
Reg: $64.95 Sale: $51.95

Quick Overview

Smooth as Silk.
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Light, strong and stable. DMM's 4CU cams have it all. Sophisticated machining has allowed them to trim away all the fat and keep the strength. With the machined cam stops you can place the unit in the umbrella position with confidence. Doubled Dyneema slings allow you to carry fewer draws and still not suffer rope drag. Single axle with free-floating terminations increase stability and help prevent the cams from walking. Best of all, they are so light that you can still get off the ground with a full rack. What are you waiting for?
Manufacturer DMM
Weight 2.75 oz. - 6.78 oz.
Force Rating 0: 10 kN
0.5: 10 kN
1: 10 kN
1.25: 10 kN
1.5: 10 kN
1.75: 10 kN
2: 10 kN
2.5: 10 kN
3: 10 kN
3.5: 10 kN
4: 10 kN
Other Features Very light weight
Doubled 12mm Dyneema sling
Machined full strength cam stops
0: 13-19 mm
0.5: 17-24 mm
1: 19-29 mm
1.25: 21-33 mm
1.5: 23-35mm
1.75: 25-41 mm
2: 29-44 mm
2.5: 33-55 mm
3: 43-66 mm
3.5: 51-82 mm
4: 64-100 mm
Product Reviews
Product Reviews
Questions and Answers


Climbing has inherent risks, but Backcountry Gear is your source for all the climbing gear to make it look easy. Whether staring up at El Cap or starting out on the gym’s rock wall, it's about having the best tools for the challenge. We can help you put together the most secure package for safety and protection with helmets, harnesses, ropes, biners, and more.

Sport climbers will find our climbing gear flush with a selection of biners and quickdraws from makers like Camp, DMM, and Wild Country suited for any top-roping or bolt route. Trad climbers will be happy with the wide variety of cams and nuts we keep on hand for those looking to tackle technical pitches unmarred by bolt holds. Even mountaineering climbers can rest assured we have the harnesses and helmets they'll need for team expeditions that require being roped together when traversing snowfields or clipping onto guide lines on the Via Ferrata.

These products have been engineered from the best materials by the most respected manufacturers in the outdoor industry. It's about safety at all times. Trust a hold with active pro cams that expand into cracks from Black Diamond's Camalot C4 family or leave worry out of the game with a passive pro nut sized just right to slide into your crag from makers like Metolius and Trango. Backcountry Gear ensures everything has been tested, from every sheath of rope to the bags that hold them, as well as markers and hooks. All you have to do is find the route.

If you have any questions about what product is best for your purposes, or if you have a concern about any of Backcountry Gear’s inventory, don’t hesitate to contact our customer support. We’re ready to answer questions and advise on your options. Knowing is half the battle, and it’s always better to have it and not need it than to need it and not have it. We'll get you to the top! We're even there for when you fall with crash pads, harnesses, and helmets.

Headquartered in Eugene, Oregon, Backcountry Gear has the best climbing gear from the global outdoor industry leaders Black Diamond, Petzl, Rock Exotica, and Mad Rock. We stock the best in sleeping bags, lightweight tents, and hiking gear, too. When you plan for the outdoors, plan on, your first stop for outdoor adventure. Every step of the way.