This is an update to the Warfairy Vanguard lower done by Ivanthetroll. This lower, like many others, have all sorts of dimensions for pinholes and the like off-spec. I took the time to fix those dimensions I found wrong, plus clean up a few other parts of the model itself. As a result, it is much easier to assemble this lower once it is printed - less hand-fitting, less need to junk a part if it warps slightly. I've test printed this lower in PLA and PETG to ensure the updated dimensions actually help make assembly easier, in both cases it did. I used a default print profile for PETG, printed PLA at 230C/55C. I recommend 100% infill. Set support threshold angle to 45degrees. The STL provided is scaled and oriented properly already. It's important to be aware this lower is set up for carbine buffer tubes - a rifle tube would not screw in correctly/fully. As with all printed AR15 lowers, you will have to bring holes up to their final size with a drill bit, but this lower shouldn't require any force-matching of pin holes or introduce any unneessarily tight-fit parts. The upper will be snug on the lower, but shouldn't have to be forced into place. *Note* - one part AR15 lowers, like this one, greatly benefit from fiberglass heat-welding on the buffer tower. I recommend doing this to increase the lifespan and strength of the lower. You can read up on this process here: https://ivanthetroll.keybase.pub/Fiberglass%20Heat-Welding%20Tutorial.pdf For the curious, here's the changelog as I remember it: Magwell moved rearward into proper posistion Bolt-hold open slot, plunger/spring hole moved forward into proper posistion Rear takedown pin hole location corrected Hammer pin hole location corrected Trigger pin hole location corrected Buffer tower to front takedown pin corrected Mag slot height corrected Mag slot lenght corrected Mag catch arm hole posistion corrected Safety hole locatiation corrected Buffer tower threads re-modeled so that they don't crash when imported as a .step