June 6, 2026
Description
This is a folding variant of the picatinny stock found here:
I use tree supports for the parts in green, on the faces in orange. I would print these parts in mostly walls. between 6-8. This is going between you and the blaster. Think about it.
The BOM for this stock (including the stock portion - which is the same as the link above) is as follows:
1x M3x45 SHCS (this is what the links the button to the lock)
1x M3 nut (This is what the M3x45 SHCS screws into)
1x M5x30 SHCS (button will probably work too, ymmv - this is for blaster mounting to pic)
1x M5 nut (for mounting to pic)
1x Short spring (mine was the following dimensions 5mm OD, 10mm Length, .5mm wire dia.
The files for the Folding portion are compatible with all stocks (metric and imperial)
2x 10-32 nut (imperial mounting) or 2x m5 thin nuts (metric mounting)
2x 10-32 x 3/8in screw (slug hardware screws) (imperial mounting) or 2x M5x10 bolts (metric mounting)
Depending on the style of stock:
m3 - 2x: m3 x 8mm SHCS
m3 w/ heatsets - 2x: m3 x 8mm SHCS, 2x heatsets
4-40 x 3/8in countersunk screws (standard slug hardware)
attach stock to "Button lock Stock holder"
insert "Button lock Stock holder" into "Button Lock Pic Attachment"
Put m3x45 SHCS through "Button"
Put short spring onto button and SHCS and up to the "Button"
Put Button and SHCS into corresponding hole. Ensure spring in between the button and the face below it.
Put m3 nut into the slot on the "Button lock Lock piece"
Put "Button lock Lock piece" into "Button Lock Pic Attachment"
Thread "Button" + SHCS into the nut that has been added to the "Button lock Lock piece"
Then add the little bits like the buttpad to the stock (you already did that anyways, who cares)
Here is the build guide that OOD published for this stock. Ive timestamped the link here
Special thanks to OOD for letting me use the pictures they took of the stock! Find a hardware kit here!
Update: 06JUN26:
I added a link to the assembly video that OOD made.
I updated the "Button lock Stock Holder" Component to be printed in a different orientation. This was to alliviate some breaking that was happening as a result of folks trying to open or close the stock without pressing the button. The stock doesn't work that way.
I have also added a Bambu lab screenshot to show what orientation to print the components in.
License:
Creative Commons — Attribution — Noncommercial — Share Alike