The Javelin is a good choice if you only rarely need a bipod. The concept is for something light and compact enough to be carried almost unnoticed in a pouch or pocket and fitted as and when needed. Consequently, if I regularly needed to use a bipod, I'd go for something else, and a Magpul might well be on my list. It all depends on how you use your rifle, how you want it to handle, and how you want it to look.