The files for this model have been removed from this page, from now on the files can downloaded for free from www.MyMiniFactory.com. This page will be left for legacy purposes and I will still answer questions if posted.
Sorry for any inconvenience.
This is Reys Blaster, or the NL-44 from Star Wars the Force Awakens. When printed it does seem a bit small but the scale is the closest I can make it with the images available. For the fasteners that are all over the weapon, I holes I've make are for M3 and M2 screws. From the images they look like socket cap button head screws but could also be small torx screws.
Avid gamer and 3d modeler of anything that takes my fancy.