7.5″ .300 Blackout 7″ M-lok Pistol Kit – Tungsten Grey
Original price was: $459.95.$349.95Current price is: $349.95.
7.5″ .300 Blackout AR-15 pistol kit in Tungsten Grey with a free-float M-Lok handguard. Lower Parts Kit and buffer tube included; no lower receiver.
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7.5″ .300 Blackout 7″ M-lok Pistol Kit – Tungsten Grey Features
The DT10-089 pairs a 7.5″ chrome moly, Nitride-finished .300 Blackout barrel with a free-float M-Lok handguard in Tungsten Grey. This kit does not include a stripped lower receiver.
- Caliber – .300 AAC Blackout
- Barrel – 7.5″ Chrome Moly, Nitride finish
- Twist Rate – 1:7
- Gas System – Pistol-length
- Muzzle Device – A2 Flash Hider, 5/8″-24
- Handguard – 7″ M-Lok, free float
- Finish – Tungsten Grey
- Lower Receiver – Not included (BCG, LPK & buffer tube included)
What’s Included: a complete barreled upper — chrome moly Nitride barrel, mil-spec .300 Blackout-specific BCG and charging handle, Tungsten Grey M-Lok 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 lower receiver, pistol brace, or magazine.
Pair this upper with our matching Tungsten Grey 80% lower receiver, or browse our full lineup of AR-15 pistol build kits.
| Weight | 7.2 lbs |
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| Accessory Attachment Style | M-lok |
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Q: Does this kit include a lower receiver?
A: No — this kit is upper-only, though the BCG, mil-spec Lower Parts Kit, and buffer tube are included. You’ll need to supply 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 1:7 twist 7.5″ 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, and this kit is a good candidate for it: 7.5″ .300 Blackout barrels are a favorite for subsonic, suppressed shooting. You’ll need your own NFA tax stamp and suppressor.
Q: Is the Tungsten Grey finish just on the handguard, or the whole kit?
A: On this kit, the Tungsten Grey finish covers the handguard and receiver-facing components of the upper; the barrel itself retains its Nitride finish.
Q: What gas system does the 7.5″ barrel use?
A: Pistol-length gas system. On this kit’s 7.5″ barrel, that length keeps the action running reliably without over- or under-gassing.
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 7.5″ 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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