Vfc gbbr 417 with 4x mags Good: polished contact surfaces on the bolt that provide greater efficiency Mags have an increased capacity of 28-30 bbs Heavy weight steel bolt Bad: as a result of the increased magazine size, the gun will lock back inconsistently, this can be rectified by making a spacer and putting it in the mag. In the picture there are 5 mags, one 1 is leaking and the other 4 have a perfect seal “Deez nuts” on the dust cover and a “N” next to the D of 417D on the reciever (funny meme), I'm sure this wouldn't be too difficult to remove

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