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http://www.airsoftsniperforum.com/phpBB/phpBB3/viewtopic.php?t=1156
I actually prefered the HP chamber over the PDI, but both should give you great results. Upgrade the barrel, chamber, bucking, and nub first and you are set. Then move onto the trigger box area including the piston. Last upgrades should be the spring guide, cylinder head, and cylinder itself.
I actually prefered the HP chamber over the PDI, but both should give you great results. Upgrade the barrel, chamber, bucking, and nub first and you are set. Then move onto the trigger box area including the piston. Last upgrades should be the spring guide, cylinder head, and cylinder itself.