Sorry for using those exact words, but I do not think that its the “most significant carbine released to civilians in the last ten years”, to be more precise.
The SCAR is a fine rifle folks, and I don’t have a horse in the ACR race, but from an unbiased observer point of view, the ACR made a leap in one of the only areas where its possible (at least in this point in firearms tech) to make tangible gains, mainly user control features.
The SCAR is great, and the folks at SOCOM certainly are getting a good product with it, when compared to the standard M4. But while the SCAR addressed shortcomings with an existing platform, I think the ACR made improvements, at least from a design perspective, that are the kind of things that are long term trends that hopefully, will be copied by other gun makers, including FN. Hell, if a newer version of the SCAR copied the control features of the ACR, it’d be fantastic.
The ACR might be a steaming pile, but if the ideas and features it introduced live on, even in other platforms, then I think that makes it more influential or “significant” than the SCAR, which although a fine weapon in its own right, really doesn’t do anything that hadn’t been done before on another platform already.
The SCAR is certainly getting fielded in a large scope, and that’s a success for FN in at least getting past the military’s insane procurement system. But the gun itself doesn’t do anything new (maybe combining all the features in one package, but that’s not “new”, its just a recombination of things that already existed previously in different platforms).
The ACR, on the other hand, does seem to do some things that are “new”. And I’m not talking sci-fi stuff “new”, I’m talking simple controls that make even your novice gun guy go “Oh, thats a good idea, why hasn’t anyone done that before?”.
The SCAR is a great rifle, I don’t like it from my handling of it, but I can see where a lot of folks find it an attractive choice, it seems very well built and solid. (I don’t buy into the internet hoopla about stocks breaking, show me the proof) But it didn’t strike me as having anything of its own that would be copied years from now (or for that matter, things that it didn’t copy from somewhere else).
The ACR, however, on my first impression, aside from being unusually heavy, and having a wobbly charging handle, just hit me right in the firing hand grip. You have access to all the functions of the weapon right there, and to make it even better, you just put the grip in your left hand, and surprisingly, nothing changed, all the controls are all there. That’s something that’s instantly noticeable, and if everything else about the gun falls apart and melts, that’s still something I as a shooter am going to want on any future rifle designs.
I didn’t find anything on the SCAR that had me thinking “I’m not going to buy a new design unless they incorporated XYZ”. That’s all I’m saying, and I think that’s where a design’s long term influence comes into play.