Ok so I've come to make my Trueborn for my growing Kabal and instead of buying 4 boxes of warriors to get the 4 blasters I needed I've used a simple conversion to double the amount of blasters from each box.
Here is the original blaster
Here is the 'new' blaster
and here is a side by side comparison
The conversion is simple take the shredder and clip off the end of the barrel leaving the cooling rings and then clip off the ammo canister. Then take the blast pistol and clip off the barrel drill and pin this to the shredder. Done!
Probably already been done but I think it's quite effective and worth mentioning.