Is this a muzzleloader?

[Skinny Shooter]

http://64.184.32.112/cmmg_images/tbl...er_Vid_III.wmv

To fire, the powder charge and bullet are loaded via a ramrod. Using a standard magazine with a single shot follower, an unloaded but primed 5.56 case is loaded into the mag, inserted in magazine well and chambered just like a standard rifle.
Once the rifle is fired, the empty brass is ejected manually.