Yhm gas block - Yankee Hill Machine Low Profile Gas Block With Pinch Screw Mounting YHM-9384

I bought this for my M&P15 to replace the factory block, in conjunction with the Leaper's UTG free float hand guard. They both worked well with each other, and the fit of the YHM block was perfect for the factory milspec barrel. Installation was simple, and the pinch screw mounting was very easy to use. I re-used the factory rollpin, albeit with some "gentle" massaging with a mallet. The mounting hole for the pin was a little tight, and required a little more force than I would've liked, but it still managed to fit. It's definitely more aesthetically pleasing than the factory block, and you can't beat the price. I went with this model for my first AR build, rather than the adjustable gas block, but might consider the latter once I replace my BCG down the road. Great quality piece, and would definitely buy again.