10.5″ M-lok Pistol Kit with 80% Lower
Original price was: $459.00.$379.95Current price is: $379.95.
10.5″ 5.56 AR-15 pistol kit with M-Lok rail — includes LPK, buffer tube, and an 80% (unmachined) lower receiver. Jig sold separately.
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The DT10-102 pairs a 10.5″ chrome moly, Nitride-finished 5.56 barreled upper with a free-float M-Lok handguard and ships as a genuinely complete kit — Lower Parts Kit, buffer tube, and an 80% lower receiver all included.
- Caliber – 5.56 NATO (.223/5.56)
- Barrel – 10.5″ Chrome Moly, Nitride finish
- Twist Rate – 1:7
- Gas System – Carbine-length
- Muzzle Thread – 1/2″-28
- Handguard – M-Lok, free float
- Finish – Black
- Lower Receiver – 80% (unmachined) lower receiver included
What’s Included: a complete barreled upper — chrome moly Nitride barrel, mil-spec BCG and charging handle, M-Lok free-float handguard, gas block and tube — plus a mil-spec Lower Parts Kit, a US-made pistol buffer tube with buffer and spring, and an 80% (unmachined) AR-15 lower receiver. It does not include a jig or magazine.
Pick up an 80% lower jig kit to finish machining the included receiver, or browse our full lineup of AR-15 .223/556 Pistol Build Kits.
This 5.56 complete Pistol Kit is not an FFL Item because the Lower is not complete — it is machined 80% and still needs machining to complete.
WE DO NOT SHIP 80% LOWER RECEIVERS TO THE FOLLOWING STATES – NY, RI, NJ, CT, MD, DE, HI, IL, NV, CA, WA, DISTRICT OF COLUMBIA, DENVER, CO OR BOULDER, CO
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information: www.P65Warnings.ca.gov
| 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: Yes — the DT10-102 includes an 80% (unmachined) lower receiver. It’s not a firearm and still requires machining (jig and tooling sold separately) before it can be assembled into a complete build.
Q: What caliber is this kit chambered in?
A: Chambering on the DT10-102 is 5.56 NATO (.223/5.56) — a 1:7 twist, 10.5″ barrel, threaded 1/2″-28. The BCG is caliber-specific to 5.56 NATO, so it won’t swap with a different caliber’s bolt carrier.
Q: Does the twist rate matter for the ammo I run?
A: It does. At a 1:7 twist, the DT10-102 handles the full range of common 5.56/.223 loads, including heavier 62–77gr bullets that slower twists struggle to stabilize.
Q: What handguard is installed, and does it free-float the barrel?
A: The DT10-102 uses a M-Lok 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: A carbine-length gas system, sized specifically for the DT10-102’s 10.5″ barrel to keep the action cycling reliably.
Q: Can this be built as a rifle instead of a pistol?
A: This kit’s 10.5″ barrel is well under the 16″ minimum for a standard rifle barrel. Configuring the DT10-102 on a lower with a shouldered stock instead of a pistol brace makes it a Short-Barreled Rifle (SBR) under the NFA, requiring ATF Form 1 registration and an approved tax stamp before assembly.
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