Nerf Modulus Stealth Ops Upgrade Kit Red Dot Dart Blaster Add-Ons Hasbro, 1 unit - Harris Teeter
Not really thrifted (more like clearance find). 6 euros for the stealth ops kit and 12 euros for the Megalodon, both NIB. Blessed be the Nerf Gods : r/ Nerf
Nerf Modulus Upgrade Kit | Groupon
Buy Nerf: N-Strike Modulus - Stealth Ops Upgrade Kit at Mighty Ape NZ