TANGODOWN ACB-4 BIPOD (ADVANCED COMBAT)
CONSTRUCTION: 7075 aluminum body, polymer legs HEIGHT: 8–10 inches, deployed
WEIGHT: 16.1 ounces
ATTACHMENT: 1913 Picatinny rail
Designed for minimum weight and ergonomic impact, the TangoDown ACB-4 Bipod weighs 16.1 ounces. It features lightweight aluminum forgings and polymer legs. The Picatinny attachment uses two hex screws (with flathead slots, as well) for the attachment. Three holes in the leg allow for three positions—to deploy the legs, grab the foot of each leg and pull. The legs lock open securely. Collapsing the legs requires pushing the button as it passes through each of the holes while maintaining pressure on the bottom of the leg. I found this a little difficult to accomplish and almost impossible with gloves on. Adjustment is limited, with only a 2-inch difference between collapsed at 8 inches and fully extended at 10 inches. It does have traverse capabilities, as well as a slight cant. It folds rearward when closed and sits tightly against the handguard for a snag-free profile.