ill start out easy , someone tell me what exactly is a " free floating hand guard " and whats the deal with magazines and different Follower.
I plan on ordering my lower kit soon I got my stripped lower last weekend, I got a Spikes Tactical Jolly Rodger lower, I plan on a RRA lower kit but whats the deal with triggers ?? Im looking at this kit 3 Pound Solid Timney Trigger WITH Rock River Arms Lower Receiver Parts Kit.. it says its a single stage trigger whats the diff between a sing and a double stage trigger ?? Ive asked on a few AR sites but no one was really willing to help

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