BavTac Version 2 VFC M249 PistonIts big and heavy Like your mom. Version 2 of this piston was born due to a vast amount of messages stating "WE WANT IT BIGGER AND HEAVIER". Again, like your mom So here it is. Still keeping its general form factor on the business end, it now includes an internal thread allowing the attachment of a weight fitted into the internal bore of the BCG. Results? Well the proof is in the pudding really. The stock BCG and piston weighs in at 188g and with our