In this instructable I will be showing and describing how to build your own 700fps BB gun inside a metal flashlight. These are relatively simple and cheap to make and require basic tools and a little know-how. These BB guns are not intended to be shot at people; they are far too dangerous and will easily cause permanent damage to an eye.
New how-to video:
For this Instructable you will need:
1 x metal flashlight
1 x 6mm brass tube (or similar metal tube that fits a 6mm BB)
1 x schrader (tyre) valve - it can be threaded
, ripped from a bike tube
or be one of those rubber tubeless snap-in ones
1 x JB-Weld, araldite or similar epoxy
1 x superglue
1 x bike pump or CO2 inflator or air compressor
Hot glue gun
for an animation on how it works.
There are a few small bits and pieces that may be required but they can generally be found around the house, in the garage or can be bought for cheap at a hardware store.