Back when they first came out with it, I heard negative reviews of the Magpul bipods. I don't recall what the problems were. But I decided I would not get one.
I've always been happy with my Harris bipods. Never a problem.
Not related other than it's Magpul... back when they came out with Magpul Glock magazines, I bought five of them for my Glock 19. They were about $5 cheaper than factory Glock mags. Mind you.... I had plenty of mags, but I thought I'd give these a try and use them at the range. Hoo-boy. Every single one of the five Magpul Glock mags I bought turned my otherwise INFALLIBLE Gen 2 Glock 19 into a jam-o-matic. Multiple failures to feed on a single full load of the magazine. And it was all five of them. For what it's worth!