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Old January 30th, 2015, 20:46   #12
juicy
 
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Join Date: Nov 2009
Location: Richmond, BC
IIRC the E2 mags hold a bit more gas than the P226R mags (different construction).

BBU alone for the P226 won't change anything to do with seal to nozzle - only option for a lightweight one that I'm aware of is the UAC, which does not feature an integrated piston head nor does it include one. As mentioned, lightweight BBU can make a big difference on gas consumption.
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