Hello, I am new to the site and owning a AR based .308. I just got a Bushmaster ORC and like it so far. Picked up some 20rd Magpul mags and they work great (as did the supplied factory magazine). The stock and handguards feel cheap so I want to go with Magpul replacements, (I wouldnt be in this position if I didnt have a Magpul edition DoubleStar in 5.56!). My question is do I need to be aware of anything regarding stocks, handguards, grips, etc.? On the Magpul site, I havent seen much seperating the 5.56 vs 7.62 except for mags. Compatability is my concern. Thanks and sorry if this has been covered before.