This is a pack of character animations for the M4 rifle, first and third person.
Check this demo to get an idea.
YouTube
The same animations can work for both first and third person modes.
The animations were made with details in mind, you'll find animations checking the chamber or the mag, separate mag out, mag in, mag in + charging etc to give you the most control over your animation setup.
The rifle you see in the video is included and is rigged and can be animated.