It's important to note that the gun is not for sale (really, only a bunch of crystals are), although that hasn't stopped Halo fans from sending in offers for the rifle. The rifle features 14 rechargeable batteries which we assume are connected to pink LEDs used to give the crystals their authentic pink glow. Now all Cybertron9 needs is a 7 foot tall Arbiter costume so he/she can scare away 10 year old trick or treaters that dare to wear a Master Chief armor suit come Halloween.
[Via Bungie.net. Thanks, DahCheet]