Right out of the box, the barrel looked decent until the "E" Logo fell off. Just a cheap little plastic bubble with a paper sticker behind it, and it was'nt even glued on properly. When I tried to thread it onto my Spyder Paintball marker it was difficult to screw in, and only screwed in about half way so the O ring did'nt meet up with the body of the gun. Just to make sure, I tried it on another different Spyder paintball marker that belongs to a friend of mine and still had the same problem, Even though the packaging itself said that it was compatible with Pirahna and Spyder paintball markers. The threads looked about right and did'nt appear damaged in any way, yet would not fit. Either the barrel I recieved was deffective, or the product itself was poorly designed. Either way I am in the process of returning this item. Very dissapointed, Buyer Beware!

• How accurate was the sizing? Not Accurate, does not fit Spyder
• Please tell us about the quality of the product. Fair Quality, does'nt fit
• Was the product free of any manufacturer defects? no

on my MR1 i shot about 6 pods of marbellizers and some karnage paint. no breaks at all. a little loud but only slightly louder than average. nice o-ring seal. screwed on easily. accuracy was as good as i have seen in any overbored barrel (i was overboring). there are 2 barrels for spyders currently on overstock.com, this is the more expensive one. i did not try the other barrel but the reviews on it were not as good. i say go for it unless you want to go really high end. but if you want to go high end, what are you doing with a spyder anyway?