Description
The .300 Blackout was practically built to run suppressed, and POF-USA clearly had that in mind when they put this Minuteman together. The Dead Air KeyMo muzzle brake up front is pinned and welded to the 13.75 inch barrel, and that KeyMo mount means any Dead Air Sandman or KeyMo-compatible can threads right on in seconds. No adapters to buy, no timing to fuss with. Run it bare and the KeyMo still works as a legitimate brake, keeping the muzzle flat with noticeably soft recoil for quick follow-ups.
What Makes This Minuteman 300 BLK Worth a Look
The barrel itself is where POF earns its reputation. It's machined from 4150 CrMoV steel, nitride heat treated inside and out for hardness and corrosion resistance, and cut with 5R rifling in a 1:7 twist. That twist rate handles the full spread of Blackout loads, from zippy 110 grain supersonics to heavy 220 grain subsonics that really shine behind a suppressor. A pistol-length gas system with a low-profile nitrided gas block keeps it cycling reliably across that whole range, and POF's patented E2 dual extraction chamber takes stress off the extractor for longer parts life.
Built Out Right From the Factory
Plenty of ARs need upgrades before they feel finished. This one doesn't. You get billet aluminum upper and lower receivers, a single-stage drop-in match trigger with a clean 3.5 pound pull and short reset, and a nitride bolt carrier group with POF's roller cam pin. Controls are fully ambidextrous, including the safety and the Strike Eagle charging handle, and the receiver end plate has QD sockets on both sides. The 13 inch Renegade rail gives you a continuous top Picatinny, M-LOK slots all around, and four QD points, while the Mission First Tactical Minimalist stock keeps weight down at a feather-light 10 ounces.
Ready to Run Out of the Box
Drop on your favorite optic, load up the included 30 round Magpul PMAG, and this Minuteman is set for the range, the deer stand, or home defense duty. It's a genuinely complete rifle, and if a suppressor is anywhere in your future, the KeyMo mount alone makes it an easy pick.
Key Specifications
- Manufacturer: Patriot Ordnance Factory (POF-USA)
- Manufacturer Part Number: 02048
- UPC: 847313020482
- Caliber: .300 AAC Blackout
- Action: Semi-Auto, Direct Impingement
- Barrel Length: 13.75" (16.1" overall with pinned and welded KeyMo brake)
- Barrel Material: 4150 CrMoV Steel, Black Nitride Heat Treated
- Rifling: 5R, 1:7 Twist
- Muzzle Device: Dead Air KeyMo Muzzle Brake, Pinned and Welded
- Gas System: Pistol Length with Low-Profile Nitride Gas Block
- Handguard: 13" Renegade Rail, M-LOK Compatible, 4 QD Points
- Trigger: Single-Stage Drop-In Match, 3.5 lb Pull
- Stock: Mission First Tactical Minimalist, 6-Position
- Safety: Ambidextrous
- Capacity: 30+1
- Finish: Flat Black Hard Anodize
What’s Included
- POF-USA Minuteman 300 Blackout rifle with pinned and welded Dead Air KeyMo brake
- One 30-round Magpul PMAG magazine
Frequently Asked Questions
Can I mount a suppressor on the POF-USA Minuteman 300 Blackout?
Yes, and that's one of the biggest draws of this rifle. The pinned and welded Dead Air KeyMo brake serves as a quick-attach mount for Dead Air Sandman series suppressors and any other KeyMo-compatible can. The sealed taper design sits ahead of the locking channels, which helps prevent carbon from locking the suppressor onto the mount.
Will the Minuteman 300 BLK handle both supersonic and subsonic ammo?
It will. The 13.75 inch barrel uses a 1:7 twist with 5R rifling, which stabilizes everything from light 110 grain supersonic loads up to heavy 200-plus grain subsonics. The pistol-length gas system is well matched to the Blackout cartridge and cycles reliably across that range.
Does this rifle need any upgrades before it's ready to shoot?
Not really, aside from an optic since it ships without sights. It already comes with a 3.5 pound single-stage match trigger, billet receivers, a nitride bolt carrier group with roller cam pin, ambidextrous controls, and an M-LOK Renegade rail. Mount your glass, load the included PMAG, and go.
Why is the barrel listed at 13.75 inches instead of 16?
The Dead Air KeyMo brake is permanently pinned and welded to the barrel, bringing the total barrel length to 16.1 inches. This gives you the handier balance and shorter sight radius of a 13.75 inch barrel while the rifle keeps a standard 16 inch configuration. It's a popular setup because the Blackout cartridge burns its powder efficiently in shorter barrels anyway.





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