Quote History Quoted:
Itd be similar to the blood diamond/bhd rifle. I think thats called an xm177.
Depends on which carry handle upper you use
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Blood Diamond/BHD rifle is the Model 727. I
think those are typically an A2 upper and what we today would call an "M4" barrel profile. There's a long thread in the A2 subforum about BHD-style rifles.
https://www.ar15.com/forums/AR-15/going-for-a-1993-Somalia-car15-build-and-need-your-help/127-449652/The XM177 is the Vietnam-era A1 carbine with the "moderator" on the front.
As far as doing a SOPMOD/727 crossover, you could always invent a backstory that it was an old 727, or even one of the semi-mythical XM-4's, that somebody had upgraded with the rail as a testbed or something.
I think I've said here before, my philosophy is, "if you think it's cool, do it."