Gun printers have been using PLA+ (PLA Pro) since 2019. Its combination of flexibility, ease of use and strength makes it the best material for standard 3D printed guns.

PLA Pro and PLA+ are two different names for the same basic formulation, an improvement on the standard PLA formula. We sell Polymaker Polylite PLA Pro filament, which we have found works quite well for modern 3D2A designs.

You can have any color you want so long as it’s black