Scientifically calculated step porting. Squeegee milling designed to keep paint out of your porting. Precision honed to a 6 micron surface finish. Barrel ramping technology. Sizes include 13" and 15", bore sizes are .688, .686, .682, and .678.
I got the 15'' barrel and really liked it. Its basically a direct copy of the critical 100g barrel but $40 cheaper and available in 15''
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Disruptive Products 2-Piece Aluminum BarrelOver all i really like my disruptive 2-piece, very accurate and consistent. Nicely manufactured, smooth seams and looks good. still they are priced higher than id prefer for only a 2-piece...