ARK Chargin' Handle

Fancy one uses a compression spring and rides on a brass guide rod.
Fancy handle requires unique buffer tube, and can be used with the "Riptide" style handguard base from the Ark release.
Both versions require the "DIY" style upper receiver.

Unfancy one works like the original DIY Charging Handle for the Ark, and requires an extension spring.
No recommendation for the extension spring, it'll require a fine spring. ~30mm length at rest, but able to extend to ~110mm.
Unfancy handle does not require the unique buffer tube, but does require the "DIY" style handguard base from the Ark release.
Both versions require the "DIY" style upper receiver.

The Slide piece is the same for both versions.
Print the slide and handle, print the buffer tube if making the fancy handle.
5+ Perimeters, 100% infill, the usual.
Install heat-set inserts from the flat side of the slide.
Install M2.5 screws first, then M3, install the M4 screw last.

Parts required for either option:
3x M3x15mm -or- M3x16mm
1x M4x35mm or longer Socket Head Cap Screw, must be trimmed to ~32mm, must be FULLY THREADED
1x M4 Hex Nut
2x M2.5x14mm or M2.5x15mm Socket Head Cap Screws
2x M2.5 Heat-set Inserts, 4mm diameter, 5mm length

Additional for Fancy Handle:
1x M3x8mm Socket Head Cap Screw
1x 1/8" (3.175mm) Solid Rod 155mm-160mm (Brass or Stainless Steel recommended)
1x 304 Stainless Compression Spring, 305mm length, 5mm diameter, 0.5mm wire diameter.
	There are other options that will work, but this is what was used for design and testing.