http://airsoft-news.eu/
- basic model is C8 with 14.8 inch barrel, quality of die casted body is same as KOBA-10/22
- accessories (ie handle) are interchangeable with AEGs
- charging handle is functioning and opens a bolt cover. Forward assist is also functioning.
- Magazines are based on idea of Mr. Koba magazines enable full reliable full auto fire
- simple and realistic action
- HopUp is adjusted via dial in the top of the upper receiver
- magazines are die cast, but are similar in shape and dimension to real ones
- Koba C8 has more realistic dimensions, when compared to the AEGs.
In case you haven't seen his GBB M4 built on the same design:
http://www.taniokoba.co.jp/before5min/taniokoba_M4.mpg