The Knights Armament SR-15 16 upper is just the solution you’ve been looking for to transform your rifle build into the high-performance weapon it was destined to be. This 5.56 MOD 2 M-LOK upper has a hammer forged, 1 in 7 twist chrome lined 16-inch barrel, a full-length Picatinny rail, an M16 full auto BCG, and a charging handle. Even better, this upper receiver comes with Knight’s Armament sights and a 3-Prong QDC suppressor. So, if you want to add superior accuracy and performance to your rifle build, consider it done with the Knights Armament SR-15 16 upper for sale.