Krytac just released photos on Facebook of another AEG in their Trident series which will be avaialble in complete AEG and kit versions and the Krytac Rotary Hop-Up... "The Krytac Trident M4 SDP is the smallest, lightest, and most maneuverable of the series. Though only available to international markets as a complete AEG, the kit to build one will be available for sale in the USA.

A numbered dial and audio click make it simple to adjust and tune your Krytac rotary hopup for maximum range and accuracy."