POF-USA's Renegade+ upper receiver in .300 Blackout with a 10.5-inch barrel. The Renegade+ is POF's more conventionally priced direct-impingement line, keeping the company's machining quality and M-LOK free-float rail while using standard AR internals rather than the full piston system, which makes it an easy fit for anyone building on a common mil-spec lower.

Ten and a half inches is close to ideal for .300 BLK, a cartridge designed to burn its powder in a short barrel and give up very little velocity compared to a 16-inch tube. Pair it with a suppressor and subsonic ammunition and the result is one of the quietest practical semi-auto setups available.

In stock and ready to ship straight to your door from Dawson Defense, an Arizona-owned licensed dealer.