Nerf Recluse Bulwark bodykit by Rzt4097 - Thingiverse
Nerf Dart Pointed tip. by funerall - Thingiverse
I mostly use my printers to build these. 3d printed nerf blasters. most of these files are on thingiverse. except the pistol. You'll have to buy the stl files for that one.
Nerf Barrel Extension Adapter by Zarquon - Thingiverse
HC-E Inline Clip Extension Files Now on Thingiverse : r/Nerf
Nerf Kriss Vector by Mrheathpants - Thingiverse
The Magpie -- Double Action Nerf Revolver (Half Dart) by Mrheathpants - Thingiverse
mark rober nerf blaster (correct scale) by Raff_dee_printer - Thingiverse
NIRODHA's HPA Bullpup Nerf Blaster by NIRODHA - Thingiverse
Velcro Foam Dart Blaster by airzone - Thingiverse
Nerf Hyperfire Elite Barrel Extension by CreativeSpark - Thingiverse