Stock Bolt Mod

This an E-Z mod to do but it is all so E-Z screw up so be careful

Ok get yours self a nice big drill bit this is the biggest one I had

This is the part that is EZ to screw up get the bit center (if you have access  to a drill press would be the best but if your like me you most do it by hand) drill into the bolt but only drill down until the head of the bit is gone DO NOT DRILL ANY DEEPER THEN THE HEAD OF THE BIT

Now with a 5/16 drill bit drill the inside down to the air hole but don't drill the threads out or the choke screw will not work