Stock barrel on all paintblal guns suck in general (except the ones on guns that cost more then $800
).
In order to keep pricing to a minimum...they think of ways they can make the gun cheaper. Barrel is one of them. There are so many after market barrels now a days (flaltines, conventional, 2 piece barrel kits) paintball companys assume you will buy a better barrel, so they think "why put money into a barrel and have to jack up the price when they are gonna replace it down the road n e wayz?"
Basicly companys now you will replace the barrel...so they dont put money into the barrel so they can keep the gun as cheap as possible.