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The TacFire .300 Blackout Complete Upper takes the guesswork out of finishing an AR-15 build. It ships assembled with a 10-inch black nitride barrel, an M-LOK handguard, a charging handle, and a bolt carrier group, so all you need is a compatible Mil-Spec lower and you're ready to head to the range. The barrel wears a nitride finish that shrugs off heat and corrosion, and the receiver is 7075-T6 aluminum with a black anodized coat that holds up to real use.
The .300 Blackout cartridge was built around short barrels and suppressed shooting, and a 10-inch tube lands right in the caliber's happy zone. You get near-complete powder burn, which means you're not throwing velocity out the muzzle the way a shortened 5.56 would. It also runs both flavors of ammo well: light supersonic loads for reach and heavier subsonic loads for quiet, low-recoil work behind a can. The 1:8 twist rate handles that wide bullet-weight spread nicely, from fast 110 and 125-grain rounds to heavy 200-plus-grain subsonics.
The pistol-length gas system and free-floating M-LOK handguard give you a compact, accessory-friendly setup without a lot of extra weight. Mount a light, a laser, a vertical grip, or a bipod wherever you like along the rail. The muzzle comes threaded 5/8×24 with an A2-style flash hider installed, so swapping to a brake or a suppressor mount is straightforward down the road. It arrives optic-ready with no iron sights, which keeps things simple if you already know what red dot or LPVO you want on top.
This is a solid pick for anyone putting together a truck gun, a home-defense build, or a suppressor host without breaking the bank. Pair it with your favorite lower and you've got a compact, hard-hitting AR that's genuinely fun to shoot.
Yes, it's built to standard AR-15 Mil-Spec dimensions and drops onto most any Mil-Spec AR-15 or AR pistol lower. Since it's chambered in .300 Blackout, just pair it with a standard AR-15 magazine and you're good to go. No special lower is required.
It is. The barrel is threaded 5/8×24 with an A2 flash hider you can remove and swap for a suppressor mount or muzzle device. A 10-inch .300 Blackout barrel is one of the better setups for suppressed shooting since it burns powder efficiently in a short tube and runs subsonic loads well.
Yes, a complete bolt carrier group and charging handle are included, so the upper is ready to run right out of the box. You won't need to source those parts separately. Just add your lower and an optic and you're set.
This barrel handles both supersonic and subsonic .300 Blackout loads thanks to its 1:8 twist. Lighter 110 to 125-grain supersonic rounds give you flatter trajectory and more reach, while heavier 200-plus-grain subsonics are ideal for quiet, low-recoil shooting behind a suppressor. It's worth trying a few loads to see what your setup likes best.
| UPC | 729205508325 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | BU30010 |
| Action | |
| Barrel Finish | Black Nitride |
| Barrel Length | 10" |
| Caliber/Gauge | .300 AAC Blackout |
| Product Type | Complete |
| Shipping Weight | 3.95 |
| Sights | None, Optic Ready |
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