Airsoft piston compatibility!!!! - Krytac Barrett Rec7 upgrade

Upgrading a Krytac Barrett Rec7. Main aim was to increase power, range accuracy and rate of fire. During the upgrade I noticed an incompatibility with the new piston. This video elaborates on over coming this incompatibilty and things to check when installing an aftermarket piston. Hope you find it usefull. Like and Subscribe!!

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