I am preparing to buy my first AR15. I have decided on the RRA Predator Pursuit. I mainly wanted this gun for varmit hunting and shooting fun... however I would like to add a couple of features, this is where I hit a snag. The rifle comes with a smooth round Forearm... I want to mount a Flashlight, Vertical grip and a side sling swivel. Trying to decide how to purchace this with the correct features to meet my needs. Not a big fan of the Rifle length 4 Rail forearms... RRA has a nice Tube called the "Half Quad aluminum Free Float".... http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=380 Only problem is they only make it for Mid Length. Can you guys recommend a Forearm combination to meet my needs. Thanks for the help!