I hope you know your immediate actions.
Zip 22 with the GSG Ruger Drum Mag, Dead Air Mask Silencer, and HALO35 Thermal Scope. Each attachment is equipped with its own texture set; the total triangle count is 32,699. This project was based on the silly Zip22 with attachments that probably don't benefit the weapon due to its proficiency in malfunctions.
I had lots of fun making these attachments. For this, I made Base Materials from a previous project that got me 60% of the way there whenever I started texturing. It definitely saved tons of time, especially doing this on free time between work.