MP5 Straight Mid-Cap Short/Standard Length Magazine (CYMA; Fits Mosquito Open Beta 2)

I was recently inspired by glgr with his curved magazine creation https://www.printables.com/model/938167-mp5-curved-airsoft-magazine-fits-mosquito) and saw there was not a 3D printed straight magazine for the Mosquito Open Beta 2, so in the nature of making things fully 3D printed, I remixed a model so that you can fully 3D print the airsoft project (minus internals). Showed the print orientation in 2nd picture. Holds 60-80 BBs depending on whether you use a strong fast feed spring or a lighter one.

For Assembly, there is two ways to go about it:

1. The first way involves assembling all parts except the spring. You first add your pen spring and bb holder to one half, then screw the two halves together. You then attach your mag follower to one spring and jam the spring into the spring plug hole. If using two springs, I just jammed them in successively (you could make a printed spring joiner if you want). Then you screw on the spring plug.
2. The second way will you have you add the spring to the halves before screwing them together. This method can be a bit challenging as the spring will want to move around and not stay still, but if you put part of the spring through the spring hole (to kinda “shorten” it in the track), you can make it easier to screw the halves together with the spring present.

Voila! 3d Printed MP5 mags for your MP5, or for me, Mosquito Open Beta 2:

https://www.printables.com/model/564524-mosquito-airsoft-kit-open-beta-2

Uses M3 Screws (20mm) and Nuts, Pen Spring for the BB catch

Supports: Yes

Infill: 50%

The following springs could be used (Or springs from any mid-cap laying around really):

https://www.redwolfairsoft.com/accessories-springs-spring-guides-gbb-mag-replacement-springs-for-ptw-mag-normal.html

https://www.redwolfairsoft.com/accessories-springs-spring-guides-gbb-mag-replacement-springs-for-ptw-magazine-strong.html

https://ampedairsoft.com/maple-airsoft-supply-superfeed-series-high-speed-replacement-magazine-springs-gen-3-pack-of-3/

Used the Magazine Follower from:

https://www.printables.com/model/714161-universal-airsoft-mid-cap-magazine-follower/files

Used BB Catch from:

https://www.thingiverse.com/thing:5391953