From GrabCAD developer John Fall thank you for your work in this great community!!!
https://grabcad.com/library/m79-grenade-launcher-request-1
File updated 20/11/2022
The M79 was a result of the US Army's Project Niblick, an attempt to increase firepower for the infantryman by having an explosive projectile more accurate with further range than rifle grenades, but more portable than a mortar. Project Niblick created the 40 x 46 mm grenade, but was unable to create a satisfactory launcher for it that could fire more than a single shot.
May not be perfect but some of the drawing are difficult to read .
u/Dave_A480 · 2023-03-08 23:49:49 UTC · score 6
So, according to the NFA anything with a bore larger than .50" that has potentially-lethal ammunition available for it is a 'Large Bore Destructive Device' and must be transferred the same way as a silencer/shotgun/rifle/mg.
It turns out that there are flare cartridges in 37mm - but no lethal ammunition -…
u/LostPrimer · 2022-08-18 18:11:18 UTC · score 3
We've come full circle:
https://en.wikipedia.org/wiki/High%E2%80%93low/_system#M79_40-mm_grenade_launcher
u/bobbybird238 · 2022-11-24 07:13:45 UTC · score 1
I have a m79 airsoft grenade launcher. Would I be able to convert it to a signaling device with this kit?
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