7.5″ AR-15 Pistol Kit 7″ Window M-lok – Purple
Original price was: $459.95.$349.95Current price is: $349.95.
7.5″ 5.56 AR-15 pistol kit in Purple with a Window M-Lok free-float rail and chrome moly Nitride barrel. Lower Parts Kit and buffer tube included; no lower receiver.
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The DT10-147 dresses a 7.5″ chrome moly, Nitride-finished 5.56 barrel in Purple Cerakote and pairs it with a slim, free-float Window M-Lok rail. This is an upper-only pistol kit — no 80% lower receiver is included.
- Caliber – 5.56 NATO (.223/5.56)
- Barrel – 7.5″ Chrome Moly, Nitride finish
- Twist Rate – 1:7
- Gas System – Pistol-length
- Muzzle Thread – 1/2″-28
- Handguard – 7″ Window M-Lok, free float
- Finish – Purple Cerakote
- Lower Receiver – Not included
What’s Included: a complete barreled upper — chrome moly Nitride barrel, mil-spec BCG and charging handle, Purple Window M-Lok free-float handguard, gas block and tube. It also includes 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.
Browse our full lineup of AR-15 .223/556 Pistol Build Kits, or pair this upper with one of our Purple 80% lower receiver to finish your build.
| Weight | 7.2 lbs |
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| Barrel Thread | |
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| Accessory Attachment Style | M-lok |
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Q: Does this kit include a lower receiver?
A: No — the DT10-147 is an upper-only kit; you’ll need to supply your own AR-15 lower (stripped, complete, or 80%) to finish the build.
Q: What caliber is this kit chambered in?
A: Chambering on the DT10-147 is 5.56 NATO (.223/5.56) — a 1:7 twist, 7.5″ 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: Yes, and it’s worth knowing for the DT10-147: a 1:7 twist favors heavier 5.56/.223 bullets (62–77gr) without giving up performance on standard 55gr ammo.
Q: Is the Purple Cerakote finish just on the handguard, or the whole kit?
A: On the DT10-147, the Purple Cerakote 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 the DT10-147’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. The DT10-147’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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