In January of 2013 I bought a brand new M&P15OR...This was my 1st and only AR-15. I quickly loaded it up with the goodies. EoTech 512, Vltor Charge Handle, Knights Armorment Quad Rail, Magpul Stock, Hogue Grip, and a Bipod. I'm now thinking about upgrading the trigger. Any advice, opinions, or ideas on a decent trigger at a good price? Also what is the factory pound rating on the stock trigger? Thanks