Team Blacksheep gives us a video preview of their upgrade project on an Echo1 Troy M4 AEG. They used the Madbull Airsoft Gemtech T2 RAS Kit and and did a tightbore barrel upgrade to improve FPS and of course, the look (with some bits from Strike Industries also included)... "We had an old used Echo1 Troy M4 that was used for CQB and a loaner gun and we wanted to do something with it but now spend a ton of money. So we thought about it and came up with getting a new tightbore barrel and RIS kit. The search began online."

Read the full project at Team Blacksheep.