Really anything that can keep up with how fast you can shoot it will work.
I use a Ricochet apache because I like the looks and it works great.
You dont really need a loader capable of 30 bps, it's doubtful you'd really hit that limit but with proper adjustment, close to 20 bps is possible.
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SplatU The Dude with the Camo dreads
Call sign: MacGyver
NEW HAMPSHIRE HIGHLANDERS
Ballin Since 85
I use a halo b with a V35 board and never had a problem. But the width of the feedneck will require you to either sand it down or get one that is adjustable. The Zero Feednecks for mags are very good.
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Commanding Officer of SINISTER OPS Scenario Paintball Team