Upgrade to Mussy's Trifold Stock

Here are three slightly upgraded parts to Mussy's excellent TFS Trifold Stock/Brace: https://www.thingiverse.com/thing:6158158

The parts and upgrades are as follows:

1. An extended locking button
2. A rail mount with an added hole for an M3 heat-set insert. This allows you to lock the brace to your airsoft rail with the use of an M3 grub screw.
3. Mid-section with slightly altered geometry that increases the clearance between your upper and the brace, allowing it to fold slightly closer to your airsoft rifle. I also beefed up the rear-facing arm(?) to give it a tad more strength when mated up with the butt part.

Print with your preferred filament. I would recommend using at least 50% gyroid infill and 4 walls. Note THIS IS FOR AIRSOFT USE! Unless printed mostly solid with a tough material, it will likely not survive too long if faced with the big boom pow recoil of a real rifle.