Ok, I'll say Parker Hale instead. It's an old design but it works well. I have them on several heavy rifles including a Pauza P50 (50 BMG) semi auto (28 lbs). I don't care for the front handguard spigot. Though it works it puts the rifle too high over the bipod's swivel ball. I bed or bolt a straight steel spigot into the forestock. The reverse spigot model fits the Accuracy International stocks. Have one of those too. It's small advantage is that the spigot removes when the bipod is removed. Either model removes with just a press on the release lever but I've never had one come off by accident. I like the PH over other bipods I've used because it doesn't restrict the fore, aft, tilt, or traverse movement of the rifle over several degrees of movement.
Parker Hale Bipods
The VersaPod is a rip-off of this design but not as well made or as strong. (maybe they've gotten better than the one I tried.) The Gibbs bipod was also a rip-off made in south America. Not as well machined though it's fairly strong. There are also some horribly machined Chinese ones which are simply junk. The ball is just a rough casting. The key to this design is having an accurately machined ball and fitted clamps. There is considerable difference in the smootness of the legs (all worse than the PH model). The PH is unnecessarily heavy for a rifle under 10 lbs (AR's, etc). The bipod without the spigot is 1-1/2 lbs, all steel.