Letís face it, as airsofters we want the best and most realistic gun possible. Unfortunately, a stock plastic receiver just doesnít cut it. That is why Echo 1 is bringing you this full metal lower receiver for the VFC M4/M16 line of AEGs. This lower receiver features vivid color filled selector visuals as well as visually appealing cast Echo 1 Platinum trade marks. Please note that this receiver is designed specifically for the VFC M4/M16 Line of AEGs and may not work with other AEGs. Whether, you are looking to upgrade your stock plastic body or replace a broken metal body, then look no further than the Echo1 Platinum M4 Lower Receiver For VFC M4 / M16.