The POF-USA P-415 EDGE Upper (brand part no. 01515) is a 10.5-inch, .300 AAC Blackout gas-piston upper built around POF-USA’s patented E2 Dual-Extraction Technology, which cuts four small channels into the chamber walls to let gas pressure help push the spent case rearward, reducing wear on the extractor and improving overall reliability. The upper runs a 5-position adjustable gas piston system, using a gas plug, piston, and operating rod to cycle the action instead of venting gas directly into the receiver like a direct-impingement design. An ambidextrous charging handle and POF-USA’s Modular Railed Receiver, a free-floating monolithic handguard with a reinforced backbone, round out a build forged from 7075-T6 aluminum and machined to mil-spec M4 feed ramps. The 4150 CrMoV steel barrel is finished in Black Nitride with a 1-in-8 twist tuned for 300 Blackout’s range of subsonic and supersonic loads, and threaded 1/2×28 at the muzzle. As a complete upper only, this 10.5-inch barrel becomes an SBR only if paired with a shoulder-stocked lower under 16 inches overall, which requires ATF registration first.

Key Specifications

• Chambered in .300 AAC Blackout.
• Barrel measures 10.5 inches.
• Rifling uses a 1-in-8 twist, tuned for both subsonic and supersonic 300 Blackout loads.
• Barrel is 4150 CrMoV steel, finished in Black Nitride.
• Runs POF-USA’s E2 Dual-Extraction Technology for reduced extractor wear.
• Features a 5-position adjustable gas piston system.
• Includes an ambidextrous charging handle.
• Built with POF-USA’s Modular Railed Receiver free-floating handguard.
• Upper receiver forged from 7075-T6 aluminum to mil-spec M4 feed ramps.
• Ships optic-ready.

Frequently Asked Questions

Why choose 300 Blackout over 5.56 for a short barrel? 300 Blackout was designed to perform well out of shorter barrels and cycles reliably with both supersonic and subsonic ammunition, which 5.56 doesn’t handle as well at reduced barrel lengths.

What does the E2 Dual-Extraction system do? It cuts small channels into the chamber walls so gas pressure helps push the spent case out, reducing the workload and wear on the extractor.

Is this short-barreled upper itself an NFA item? No, it’s sold as a complete upper only; barrel length restrictions only apply once it’s paired with a shoulder-stocked lower under 16 inches overall, which requires ATF registration.

Buy the POF-USA P-415 EDGE Upper, 300 Blackout, 10.5-inch

Add a gas-piston EDGE upper tuned for 300 Blackout to your compact AR-15 build. Order it through our Patriot Ordnance Factory lineup of AR15 uppers from our Lubbock, Texas gun shop.