Faxon full size 9mm barrel - Faxon Firearms Match Series 9mm Luger, M&P Full Size Gen 1/2 Non-Threaded Pistol Barrel

Not drop in. Barrel was not even close to fitting right in the slide. Ive seen alot of similar reviews on the compact version and took the chance and shouldn't have. No gunsmith will touch trying to fit it due to the fact Faxon claims them to be full drop in. Don't waste your money there are too many of these barrels that are not machined properly and are out of spec. From what I have seen the number that are bad far exceed the number that are right. And from just trying to install it in my slide twice with no force the titanium coating has been removed from the barrel in spots. They should have just spray painted it on. Rubbing my finger over the barrel using medium force was removing the finish. After this i will not purchase ANYTHING with the Faxon name on it. I wasted almost $200 by not listening to others with the same problem.