Quote:
Originally Posted by Dirty Deeds
I beleive you will need a bore-up kit for that 590mm inner.
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Not true. I have used 6.03mm 590mm inner barrel before with my sniper Aeg and was shooting 460fps with my Prometheus MS135sp set up but when I switched to 6.02mm 600mm I had a 20fps drop. So 590mm inner barrel with Type 0 cylinder is just right but above it you will need a bore up kit.