Good quality - SIG SAUER QD Taper-Lok Muzzle Brake Mount For SRD556-QD 1/2-28 TPI SRD-556-12X28-B

I am pleased with the product so far. Functions flawlessly and makes switching between guns much easier. Will likely be buying another one soon. Not terribly pleased with optics planet though, was notified it was on backorder after purchase and was then told a timeframe that was excessively exceeded. Tried to contact multiple times with no response. Even tried to cancel only to get a notification weeks later that it was being shipped. Oh and this was all prior to Covid. Have had great experience with them in the past, was really disappointed in this experience.