AR-15 Animations for UE4

My new First Person Shooter project. AR-15 and Hands assets were borrowed from free assets store. This time I've implemented animation pack into Unreal Engine 4. Created a small shooting range with free target assets, composed state machine and added some visual effects. It's not fully configured, but I plan to extend it for further projects. Please write down commets about animations and scene, I really appreciate your help (☞ﾟ∀ﾟ)☞