Okay for the price. - Leapers UTG Ergonomic Ambidextrous Vertical Foregrip

The title says it all, its okay for the price. I bought this to use on a standard mil-spec ar15. The thread in storage compartment has a small plastic nub on top which is use to "lock" in the slot of your pic rail which never really gave me a great feeling of it being secured. The storage compartment cap threads tighter than the compartment itself. On a few occasions in an attempt to remove the cap i would unintentionally loosen the storage compartment with locking nub causing the grip to slide, not terribly inconvenient but inconvenient nonetheless.

As far as actual functionality goes, the grip for me was way too tall only using roughly the top 1/3. It's cheap and it's something to hold onto. I ultimately removed this grip and currently use the Bravo Company Vertical Grip Mod3 with much better mobility and control.

If you only have $10 to spend on a grip or need something cheap to get you over the free shipping threshold this will get the job done. Otherwise, spend a little more and get something better.