I didn't say "don't use sorbos ever since this is better". This part looks like it may need drilling or modification of the upper receiver and metal hop-up units. And sorbo cylinder heads require filing the piston. Either way so far, MASK piston head is the easiest alternative.
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Originally Posted by Deftonius
I'll bet Ronan was the one who sent that email.
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Originally Posted by Wilson
The chinese steal everything. Haven't seen an original idea come out of that country yet.
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