||Just got this today and it so far has had no problems with jamming or installation. I own my own chrono(Xcortech Advanced X3200 Handheld Computer Airsoft Chronograph/the same one Evike uses in their videos)and when I chronoed it with the stock barrel and bucking and it came out at about 350~375. Now with AC 6.01 Inner Barrel and Angel Custom V-Teeth Tech. Airsoft AEG Hopup Bucking - "Sniper" (375~480 FPS)it was shooting at about 375~405 and with way more accuracy and consistency.
FPS increased by about 25
Accuracy, range and consistency all greatly increased
Very, very well priced for all stainless steal 6.01 barrel(especially compared to other brand barrels)
Pretty much a drop in uprgade
Frequent cleaning-the only thing that bothers me is that I currently do not have a long enough cleaning rod so until I get one I am going to be disassembling my gun a lot
Overall I think that this is one of my best investments in airsoft and one of the best barrels you can buy for the price.
Rating: [5 of 5 Stars!]