VFC Original Parts - M249 GBB Bolt with Piston ( 04-1 )

VFC original replacement parts for M249 GBB airsoft 04-1 Piston ( VG32PIS010 ) 04-1 Piston Rod ( VG32PIS020 ) 04-1 Knocker Lock Release ( VG32FPN060 ) 04-1 Bolt Carrier ( VG32BLT060 )