6 model

Free

Grenade Launcher - Team Fortress 2 - The Demoman

Thingiverse

Free

40mm grenade launcher (airsoft)

Thingiverse

Free

BatMan Grenade Launcher

Thingiverse

Free

Smoke grenade launcher for Dreadnoughts

Thingiverse

Free

WWI VB rifle grenade launcher

Thingiverse

Free

Deep Rock Galactic Deepcore 40MM PGL (Engineer Grenade Launcher)

Thingiverse