I have one on my POF .308, and it's a handful! The bipod is solid and deploys fast, but it's somewhat of a hassle to lock the legs back in since the feet have to be 'sandwiched' together. Also it's easy to accidently hit a leg release button and have just one pop out. After a while you get used to gripping it so it doesn't happen much. Otherwise, rock solid product and works as advertised. $100 is a little steep but overall you won't regret it. Might be a bit oversized for an AR or AK, but that's a call you'd have to make.