Gotta be a better hop-up system?

[Beazer]

Does this mean your gun is now considered a firearm?

Madbull put out some new 60 degree rubber's, there designed for a better airseal(+fps) and to help in that backing off department.

[CDN_Stalker]

Originally Posted by Beazer

Does this mean your gun is now considered a firearm?

Madbull put out some new 60 degree rubber's, there designed for a better airseal(+fps) and to help in that backing off department.

No, the required joule element of 5.7J isn't met. I think the maximum Joules with that set up is about 2.5J with 0.20g BBs.

[ILLusion]

Originally Posted by ThunderCactus

Really? My UMP is shooting 310 and I use .25s with better performance than .2s
Although common, I haven't had a problem with my hopup unit backing off since I tightened the screw holding the gear on. The G&P chamber is good but their barrel clips are abnormally weak.

That's because a UMP uses a different hop up chamber than an Armalite.