KWA M4 hop up help
 

Hey everyone,

I just bought a brand new KWA M4 and upon shooting it the first time I noticed the gun sometimes has trouble feeding bb's.

Like, when I stop firing, a random bb falls out the end of the barrel and sometimes the gun doesn't even shoot.

I absolutely have no clue whats going on. Do you think its the hop-up? I've read a few reviews on the same gun and most users say the stock hop-up is crap, most owners recommend you immediately replaced it.

What do you think?
All comments appreciated.

what magazine are you using

strip and clean it.

for some reason kwa barral or hop up idk what seems to like to eat peaces of .20g bb's. so clean it well and use .25.