As the title says this is a brand new, in the box never assembled, F-Class bipod from Sinclair. It’s the Gen 3, so it has the adjustable elevation knob. Mounted on a stock like a CZ 457 MTR, I believe these are as solid as any Arca or Pic setup. I moved on to a Joy Pod and kids I teach got chassis’ with Arca rails, so this one never made it on a gun. $250 shipped.