Just got an SRU-Precision bullpup chassis from Taiwan and fitted it to a Bravo Company VFC GBBR. Powering it with HPA through a TAPPairsoft M4-AR adapter. Added a Maple Leaf Hummingbird short-stroke bolt to replace the stock-tube recoil spring, which is great because the original recoil was distractingly strong. It seems to need higher pressure than expected but I've heard these V3 guns have steel internals so they can take whatever pressure you put through them. Can’t wait to skirmish with it in a fortnight.