In order to add different hand guards or gls you will need to shave some plastic on the gas block. I had mine rewired to the back with a kv stock and I am running 7.4 lipos in it. It is awesome. Stupid fast tho. Eats standards, in less than 3 seconds it is empty. I think that a 11.1 will be to strong, putting to much strain on the mechbox or piston but of course I am no tech.On another TM that I am running a 11.1 on i cracked the piston in half in two days. On my friends M4 the same thing is happening.So far on my EBB G36 I have only put about 1500 rounds through it. But in that time it hasbec