Color Coded

Because 25-round 6.8x43mm magazines are externally identical to the 30-round 5.56x45mm ones; but not interchangeable, you have to come up with a fast, easy way to tell them apart.

So I went with putting colored electrical tape around the magazine base; blue electrical tape.  It gives both a visual and tactile clue about what magazine you are using.

Now that Tabitha is dressed in purple, I've got some violet electrical tape for my magazines.

I wish I knew how to set my camera to consistently capture the color of the furniture.  The violet of the tape, in this photo, is how the handguards look in person.  I don't know why the camera makes them blue!

Edit:

I might not know how to make the camera do what I want, but I can make Photoshop!  Here's the same picture as above with the hue adjusted to look right.