G&P 138rd Illuminated Ver.III Tracer Magazine for AK Series AEG (Color: Black)

"Great Alternative to the tracer unit.

Pro (Compare to tracer unit)
Easier to carry.
Does not change the general look of your gun.
Save much more battery power.
You can switch between this mag and regular mag (I tag my tracer mag with colored electric tape or different color magpul)
Much cheaper.
You can still use your mock silencer.

Con:
Not as bright as the tracer unit