...for when you dump a mag of .20's in your bag of .30's.
Under normal light, hard to tell apart
UV flashlight, different brands and weights will fluoresce differently. The 0.3's were the darker purple, the lighter were 0.2's.
I am selling my whole lot of airsoft gear, all gear was bought a few years ago and is lightly used.
The M4 is an Evike special all metal aeg with 300+ fps, was only used in one war. http://www.evike.com/products/45649/
The M4 comes with 3 clips, a dejammer, and a battery without charger.