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Old February 13th, 2009, 15:39   #1
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Join Date: Dec 2005
Location: Scarborough, ON
Hop-Up Rubber Sleeves (Bucking)

I modified my SIG SG 552 which has the GWS SIG SG 556-Sniper Conversion Kit and 650mm inner barrel. It shoots about 440-450 FPS on 0.25g BB's.

I have a Firefly Hop-Up Rubber Sleeve (Hard Type) and a Prometheus Hop-Up Rubber Sleeve (Hard Type). The Prometheus feels stiffer than the Firefly. Which one would be better to use on my setup?
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