They chew up firing pins and FP retaining pins from what I have seen. They would probably run just fine, but there are other reasons that make a standard AR a better choice for hard use.
They use a special FP, can't interchange BCG because of the sear block, and have non standard FCG and take down pin sizes. If your carbine goes down it is more likely nobody will have a spare that fits. Swapping parts from a known good AR to trouble shoot is also going to be difficult.

