Well, it looks great, feels solid and has a little more power out of the box (294fps?). The receiver is identical to the old TM M4A1 save a couple of metal tabs inside. Overall, if I were buying my first gun, or was looking to add a reliable and versatile gun to my collection, I don't really have anything bad to say about this gun (other than some stupid TM verbiage stamped on the thing).
However, read some more in-depth reviews on the net and you'll get details. But as far as field testing goes, it passed with flying colours!
1st Ranger Platoon of Canada
Rangers Lead the Way. Most of the time.