Up all night M4A1 rebuilding again!

Rebuild# 27.
390-400fps really hammers parts!

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Chuck some more gear in, back to aluminium piston and different head/nozzle.

Nice work :+1:t4: i had that exact same piston ladder failure on my aps blaster. I just put another better quality nylon ladder with metal teeth. I bought an all ally piston but it is quite a bit heavier

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Yeah a bit more weight, but this thing weighs like a house brick already :joy: I have several different types of pistons and now looking closely at where this one failed I can be sure to look more carefully for different designs in the future :+1:

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looks great!

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