Raptors Airsoft is introducing its own line of enhanced 6.02 tight bore barrels. Raptors Airsoft saw a need for an accurate and affordable 6.02 barrel in the airsoft industry. There are high quality 6.02 barrels are on the market, but they cost twice as much as this one. So, one of Raptors Airsoft's goals was to make it affordable without sacrificing quality. But why a 6.02mm barrel? Why not a 6.01mm or 6.03mm? It's because a 6.02mm is the happy medium between the two. You keep the reliability and affordability of a 6.03mm and the accuracy of a 6.01mm (without the high maintenance or cost of a 6.01mm barrel). All in all, this is an accurate and very affordable tight bore barrel. If you are looking to increase the performance of your gun, there isn't a better barrel that does the job at this price point then the Raptors Airsoft RTQ Tight Bore Barrel.