http://www.youtube.com/watch?v=VZoCptBuiJ0 http://www.youtube.com/watch?v=RGgVfnA-2aA&feature=related I love this gun from an efficiency point of view. Everything I complained about on my M16A2 and M4 and also things I wasn't happy about on the SIG556 and the things I thought was a poor design on the SCAR....are all answered on the ACR. Call it "drinking the kool aide" all you want...but it honestly addresses all of the issues I had with all those other so called "next gen" AR platforms. The ACR addresses all of these issues... No Direct Impingement No high/rear mounted charging handles or right sided charging handles No reciprocating bolt handle folding butt stock with adjustable LOP Built in cheek weld that adjusts quick change butt stock from folder to sniper styles quick change/swappable caliber barrels ambidextrous selector switch ambidextrous bolt release ambidextrous mag release ambidextrous safety easy access to gas system for cleaning hand guard removes with no special tools I cant think of any other rifle that hits on all of these issues except maybe the Robinson Arms XCR. The XCR's only weakness is its push button system of field stripping vs captured set pins which can get hit accidentally and break down your gun in the middle of a fire fight if you hit it? If they fix that...it would be a notch below the ACR in my opinion anyways.