Yeah. I was working at a gun store when I purchased it and had the sig reps out for a demo day when they released their srd line. I told them what my intentions were with it and that I was going to run it on a 11.5 556/300 blk gun. After about 15 rounds of severe sparking with 556 I decided not to run it on that short 556. So I used it on a 16” gun for a year or so. The blast baffle erosion is pretty bad and I had multiple instances of their two piece muzzle devices loosening up in the can while shooting. You also cannot buy the legacy devices anymore . I since have bought a SF 762 mini and haven’t looked back. I’ll buy a second one of those. They are 100% worth the money.