gbbgamer

VFC WA WE All have Bolt Lock for M4 GBB

VFC has a two stage bolt lock, (I think it is best design) replacement is cheap
WA and WE most of problem with bolt lock it is due to the MAG is out of gas after shooting the BB, to push the bolt carrier back enough to lock, but those can be easily fix (DIY)

[ 本帖最後由 gbbgamer 於 15-10-2010 17:44 編輯 ]