The R8 is the later version of the MK1 HW50S ,still on 25mm internals but uses a synthetic seal . This later model had higher power than its predecessor running around 700 fps in .177 .
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The R8 is the later version of the MK1 HW50S ,still on 25mm internals but uses a synthetic seal . This later model had higher power than its predecessor running around 700 fps in .177 .
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