Thingiverse
Airsoft Pistol Grenade Launcher
by Thingiverse
Last crawled date: 4 years, 2 months ago
This is a project I took over one month for fun and to own a pistol grenade launcher for my airsoft replicas.
I know there's at least two different commercially available launchers and there's probably more 3D printed ones out there but I really wanted to design my own.
It uses 20mm shotgun gas shells, the ones I've used are the PPS SHS M870 shells (red). They fire 3 BBs and box of 5 is fairly unexpensive compared to the purple ones.
That said, the purple ones should work in theory but I can't say for sure because I don't own any. If you test them and they don't fit, please leave your feedback along with some shell measurements and I'll be glad to make a compatible shell holder.
The files starting with "LH" are intended for left handed players (or anyone who prefers). These change the shell holder rotation direction and the safety side.
I've also provided STEP files for the trigger and release. Modify them for your replicas and needs. Do share however, they could be of use for others.
Please notice the provided trigger was made for my 1911, it does work on my Glock but just barely.
You'll need the following hardware:
1x M5x30 bolt or/and M4x30 (glock)
4x M2x6 bolts
4 pen springs (the ones I've used are 4mm diameter)
One cut to 15mm, one cut in half and two cut to 10mm
The assembly shouldn't be hard but do watch the video for visual aid:https://youtu.be/YqcDw4h-lOc
Now, nothing is ever perfect and this is definetly not an exception. There is one "major" issue with the design that I might and will probably try to tackle in the future. That issue being the flex between the trigger box and picatinny base.
With the gas pressure on the shell and the way this is designed to slide, the trigger pushes the shell holder forward (as seen in the demonstration part of the video). It can ocasionally get the shell holder stuck.
This is caused due to the trigger box being secured only with two bolts on the upper section. I might have a solution for it, simply by beefing up the trigger box, but I'll need to change more files for that to happen.
All and all I had a blast with this project, I'm very excited to field-test it once the weather allows it.
Leave your questions/feedback in the comments. I hope you enjoy.
I know there's at least two different commercially available launchers and there's probably more 3D printed ones out there but I really wanted to design my own.
It uses 20mm shotgun gas shells, the ones I've used are the PPS SHS M870 shells (red). They fire 3 BBs and box of 5 is fairly unexpensive compared to the purple ones.
That said, the purple ones should work in theory but I can't say for sure because I don't own any. If you test them and they don't fit, please leave your feedback along with some shell measurements and I'll be glad to make a compatible shell holder.
The files starting with "LH" are intended for left handed players (or anyone who prefers). These change the shell holder rotation direction and the safety side.
I've also provided STEP files for the trigger and release. Modify them for your replicas and needs. Do share however, they could be of use for others.
Please notice the provided trigger was made for my 1911, it does work on my Glock but just barely.
You'll need the following hardware:
1x M5x30 bolt or/and M4x30 (glock)
4x M2x6 bolts
4 pen springs (the ones I've used are 4mm diameter)
One cut to 15mm, one cut in half and two cut to 10mm
The assembly shouldn't be hard but do watch the video for visual aid:https://youtu.be/YqcDw4h-lOc
Now, nothing is ever perfect and this is definetly not an exception. There is one "major" issue with the design that I might and will probably try to tackle in the future. That issue being the flex between the trigger box and picatinny base.
With the gas pressure on the shell and the way this is designed to slide, the trigger pushes the shell holder forward (as seen in the demonstration part of the video). It can ocasionally get the shell holder stuck.
This is caused due to the trigger box being secured only with two bolts on the upper section. I might have a solution for it, simply by beefing up the trigger box, but I'll need to change more files for that to happen.
All and all I had a blast with this project, I'm very excited to field-test it once the weather allows it.
Leave your questions/feedback in the comments. I hope you enjoy.
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