THIS BARREL ROCKS! After putting in the new barrel and taking out the old, the difference was unmistakable. I put this barrel in my Echo 1 M16, and it took my grouping of 2.5 feet at 100 feet down to about 6 inches. My BB's are flying in a flawless straight line, with my stock barrel I found that there were tiny pieces of metal shredding my BB's as they came out. With this barrel my gun has gotten about 10+ feet in effective range, and went from 410 FPS up to 420 FPS.
STRONG(I think its steel)
has a very smooth inside
increases FPS and effective range by 10+
Rating: [5 of 5 Stars!]