stock barrel and have tested ceramics and other barrels
dragun tes evo 2 spring kit sure shot
uhh kikin premiums
this barrel has awesome looks! (mines black) but that's not the important part. mine is 16 inches long and is a reasonably quit barrel with a loud marker like a tes.price is also a + its only 30-40$.and comes in plastic barrel case>:)
there are two minor flaws.Its accuracy slides off as the barrel gets older in fact the first month i could get a 1-2in grouping but after a month or two that grouping changed to 5-6inch groupings and etc.I mean like the accuracy is now worse than the stock barrel:(
and it is actually Farly heavy its like its got some mini magnets attracted to the ground making it heavy.
Overall the barrel is ok for the price but the two flaws are pretty much the only things that matter in a barrel.
I love check it products!!! But this barrel gets a 7 for not staying in its prime:(
Hope this helps.