I have never built any props but about a year ago I purchased a British Sterling from someone on the WhiteArmor site. He never got around to starting the build so I got it and did. Once I got my hands on the Sterling, I got a M38 scope, a Hengstler counter, some T-Track and I purchased one of WolfCubDesigns Power Cylinders. I made the scope rail out of a steel bar. Anyway, I finally finished it this week and I couldn't be happier.