I've used a Rempel, Sinclair Gen III, Censhot, Harris, and now this Duplin bipod for F-class. So, far the Rempel is an amazing rock-solid bipod.....but 3 lbs. The Duplin bipod is the lightest I've used.....AND very sturdy. Other bipods in the same weight range have a lot more flex/wiggle to them. So, I'm pretty impressed with this very light bipod. The attention to detail is great. The rail nuts look machined from a very solid steel that does not easily bend like some of the others I've used. Time will tell, but so far this thing is very nice.