Mine was a little heavier than advertised I wanna say 1lb 10oz. And I also had to send it back because the flared profile on muzzle end was the same diameter as the gas journal and my gas block would not slide over it the tolerance was to tight and the beed blasted finish added a drag factor, I was gonna heat up the gas block to get it on but that’s a one way trip and I was thinking about coating the barrel. Anyway MRA has been pretty good about the whole deal, but I’m a little disappointed it didn’t work the first time and there turn around has been a little slow as I sent it back in the beginning of December and they haven’t fixed it yet.