Tango Down Advanced Combat Bipod
From concept drawings a couple of years ago to the production bipod, TangoDown LLC recently released their Advanced Combat Bipod for the M4 (ACB-4).
It’s not a sniper or hunting bipod that has been adapted for combat rifles, but designed from the ground up for the military as a combat-tough bipod for variants of the M16 system (including SPR or DMRs) . No springs or small parts to lose or poke at you, the ACB-4 works just as well on the shorter M4s and other weapons as well as the longer ones. The ACB-4 was developed over the course of two years with numerous iterations and refinements, testing, and user input from the military.