How it looked when it arrived & how it looks now...
My version of a Colt 9mm SMG
Not a lot of modifications required TBH, birdcage muzzle device to replace the XM177 one, barrel cut down & tidied up, 9mm mag insert with paddle release cut down, 3D gas deflector from twistedfate & the ejector cover cut down. Everything else is stock OTB.