Tungsten Grey 16″ Unassembled Upper Build Kit – 12″ M-lok
$204.95
16″ 5.56 NATO unassembled rifle upper build kit with Tungsten Grey Cerakote receiver and 12″ free-floating M-LOK handguard. Includes 4150 phosphate barrel, 1:7 twist, carbine-length gas system, A2 flash hider, and all mil-spec hardware. BCG and charging handle available as add-on options. SKU DT11-220.
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Tungsten Grey 16″ Unassembled Upper Build Kit – 12″ M-lok
This 16″ 5.56 NATO unassembled AR rifle upper build kit pairs a 4150 CMV barrel with a 12″ M-LOK free-float handguard on a carbine-length gas system, finished in Tungsten Grey Cerakote. The barrel runs a 1:7 RH twist with a manganese phosphate finish, 1/2×28 muzzle thread, and a .750″ gas block journal. Prefer Keymod instead? See the matching Tungsten Grey kit with 12″ Keymod handguard, or browse more AR-15 upper build kits in this lineup.
Specifications:
- Caliber: 5.56 NATO / .223 Wylde compatible
- Barrel: 16″, 4150 CMV, manganese phosphate finish, M4 contour, 1:7 RH twist, 1/2×28 TPI, .750″ gas block journal, carbine-length gas
- Upper receiver: Forged 7075-T6, M4 feed ramps, Tungsten Grey Cerakote
- Handguard: 12″ M-LOK free-float, 6061-T6 aluminum, Tungsten Grey Cerakote
- SKU: DT11-220
- Upper receiver
- 16″ barrel
- Handguard with barrel nut and mounting screws
- Forward assist assembly
- Gas block with pin
What’s included:
- Dust cover assembly
Note: A2 flash hider with crush washer
| Weight | 5 lbs |
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Frequently Asked Questions
What’s the difference between this and the Tungsten Grey KeyMod rifle upper?
The barrel, gas system, upper receiver, and Tungsten Grey Cerakote finish are identical. The only difference is the handguard: this kit uses a 12″ M-LOK handguard; the KeyMod version uses a 12″ KeyMod handguard. M-LOK has the broader accessory ecosystem today. If you already have KeyMod accessories, the KeyMod kit is the better fit.
What’s included and what’s not?
Included: Tungsten Grey Cerakote stripped upper receiver, 16″ barrel, 12″ M-LOK handguard, carbine-length gas system, A2 flash hider with crush washer, dust cover with door hardware, mil-spec forward assist, low-profile gas block, and stainless steel gas tube. Not included: bolt carrier group (BCG) and charging handle — both available as add-on options on this product page.
What lower receiver does this fit?
Any standard mil-spec AR-15 lower. The upper uses mil-spec 7075-T6 aluminum with standard M4 feed ramps and threading.
What gas system length does this use?
Carbine-length — standard for 5.56 NATO on a 16″ barrel.
Can I swap out the A2 flash hider?
Yes. The barrel is threaded 1/2″×28. Unthread the A2 and install any compatible 1/2″×28 muzzle device — suppressor mount, compensator, or brake.
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