That sounds like me!
I enjoyed the keymod XCR ALOT when I had had it, and it seemed as good as my Tavor for accuracy with bulk 55gr federal I still had left over from a few years ago, but I never went out of my way to print groups or test ammo.
I found the stock on the XCR to be stiffer and lock up better then the ACR's, and all the hand controls were machined metal where as the ACR's are all polymer (safety, mag release, bolt release). I put a MIAD on my XCR in place of the A2 grip, but on the ACR I wouldn't bother if I could, its already the traditional Magpul grip.
The ease of take down for both platforms is something awesome, but the ACR ever so slightly wins out in this area.
XCR does have factory caliber conversions available which is nice and simple, but the barrel change system is an obvious fault and definitely not a tool-less quick change. The ACR on the other hand does not require any tools and can be changed in seconds and retain accuracy to within 1-2 scope clicks at 100m.
My M4 profiled barrel ACR is considerably heavier than my Keymod light barreled XCR was, and ACR is definitely front heavy compared to the XCR which I found well balanced for a conventional rifle design with a 18.6" barrel.
If you asked me why I sold my XCR once I had my ACR. I would flat out say accuraccy was the only reason. That same crappy 55gr bulk federal shot like a laser and I have never felt so confident shooting out at distance with a Semi-Auto 5.56 platform as I do now. I am very impressed with the ACR and very satisfied with my decision.
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Thank you for that very fair comparison! Nice looking rifle too!





















































