POF-USA's P-415 EDGE upper receiver in .300 Blackout with a 10.5-inch barrel, a complete assembled upper for builders who want a short, suppressor-friendly AR without sourcing parts piecemeal. POF built its reputation on the E2 dual-extraction chamber, heat-sinking barrel nut and nitride-treated internals, all aimed at the same problem: short-barreled ARs run hot and dirty, and standard parts wear accordingly.

The EDGE handguard is a slim free-float M-LOK rail with POF's heat sink barrel nut underneath. Ten and a half inches in .300 BLK is the classic pairing for subsonic suppressed shooting, since the round reaches near-full velocity in a very short tube.

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