10.5″ 300 Blackout Pistol Kit 7″ Keymod Upper Assembled NO Lower
Original price was: $419.95.$329.95Current price is: $329.95.
10.5″ .300 Blackout AR-15 pistol kit in Black with 7″ keymod, free float. Includes BCG, charging handle, Lower Parts Kit, and buffer tube. No lower receiver.
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10.5″ 300 Blackout Pistol Kit 7″ Keymod Upper Assembled NO Lower Features
The DT10-020 bundles a 10.5″ chrome moly .300 Blackout barreled upper in Black with a complete Lower Parts Kit and pistol buffer tube assembly — everything you need except the stripped lower receiver itself.
- Caliber – .300 AAC Blackout
- Barrel – 10.5″ Chrome Moly
- Twist Rate – 1:8
- Gas System – Pistol-length
- Muzzle Device – A2 Flash Hider, 5/8″-24
- Handguard – 7″ Keymod, free float
- Finish – Black
- Lower Receiver – Not included (BCG, charging handle, Lower Parts Kit & buffer tube included)
What’s Included: a complete M4 flat-top upper — chrome moly barrel, mil-spec .300 BLK-specific BCG and charging handle, 7″ keymod, free float handguard, A2 flash hider, gas block and tube — plus a mil-spec Lower Parts Kit and a US-made pistol buffer tube with buffer and spring. It does not include a stripped lower receiver, magazine, jig/tooling, or sights.
Pair this upper with our matching Black 80% lower receiver, or browse our full lineup of AR-15 300 Blackout Pistol Build Kits.
| Weight | 7.2 lbs |
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| Accessory Attachment Style | Keymod |
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Q: Does this kit include a lower receiver?
A: No — this kit ships as a complete upper only. It does include the BCG, charging handle, mil-spec Lower Parts Kit, and buffer tube, so you’ll just need to add your own AR-15 lower.
Q: What caliber is this kit chambered in?
A: 300 AAC Blackout is the caliber for this kit, run through a 1:8 twist 10.5″ barrel, topped with an A2 Flash Hider, 5/8″-24. Note the BCG is machined specifically for 300 AAC Blackout, not interchangeable across calibers.
Q: Can I run this suppressed?
A: Yes — this kit’s 10.5″ .300 Blackout barrel is a common suppressor-host setup, particularly with subsonic loads. A suppressor and its paperwork are on you; neither ships with this kit.
Q: What handguard is installed, and does it free-float the barrel?
A: This kit uses a 7″ Keymod handguard, free-floated off the barrel for consistent accuracy and zero retention under sustained fire.
Q: What gas system does the 10.5″ barrel use?
A: This kit runs a pistol-length gas system — matched to its 10.5″ barrel for consistent cycling.
Q: Can this be built as a rifle instead of a pistol?
A: Only with a lower and stock combination that complies with current ATF rules. This kit’s 10.5″ barrel is below the 16″ rifle-length minimum, so pairing it with a shouldered stock instead of a brace makes it an SBR under the NFA, requiring registration and a tax stamp first.
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