VFC M249 2500rd Feeding InsertMADE TO ORDER, BUT MAKE SURE TO GET GUILLOTINE'S M249 BARRELS TOO!! A feeding insert for your VFC 249 LMG's RS big plastic box; if you already have your M249 modified for HPA and already have a big plastic box, this is plug and play! If you want the whole adapter (including box and HPA fittings), click here instead. This does not use cassette magazines or a custom cassette to feed BBs into the chamber. Instead, this uses a "starter tab" of sorts so