XProjectile

XProjectile – this plugin will add a projectile system to your game. You can set up projectile speed, gravity, collision channel. Also, you can attach any mesh, particle, or sound to the projectile. XProjectile is great for rockets, bullets, arrows, grenades.

Features:
100% C++
Easy setup and easy to use
Optimized
You can customize the collision channel
You can spawn projectile Single/Multi By Channel/ObjectType
You can customize projectile speed, gravity and radius
You can customize projectile lifetime
The projectile can attach objects to itself (StaticMesh, ParticleSystem, etc.)