Exterior: Well-Worn Often imitated but never equaled, the iconic MP5 is perhaps the most versatile and popular SMG in the world. This SD variant features an integrated silencer, making an already formidable weapon whisper-quiet. 20 years of MP5 designs have contributed to this custom paint job, held together by duct tape, zip ties, and glue. If at first (and second and third) you don't succeed…