10.5″ AR-15 5.56 Pistol Upper Build Kit — FDE KeyMod, Unassembled
$209.95
Daytona Tactical’s 10.5″ 5.56 NATO complete AR pistol upper in FDE Cerakote includes a 4150 phosphate barrel, 10″ free-float KeyMod handguard, gas block, and gas tube. BCG and charging handle sold separately.
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10.5″ 5.56 NATO Complete Pistol Upper — FDE Free-Float KeyMod
This 10.5″ 5.56 NATO complete AR pistol upper puts FDE Cerakote on the mil-spec 7075-T6 upper receiver and 10″ free-float KeyMod handguard, paired with a 4150 phosphate M4-contour barrel at 1:7 twist on a carbine-length gas system threaded 1/2″x28. The pinned gas block, carbine gas tube, A2 flash hider, dust cover, and forward assist are all installed — just add a BCG and charging handle to finish the build. Check out the FDE M-LOK version, or browse more AR pistol upper build kits.
Specifications:
- Caliber: 5.56 NATO
- Barrel: 10.5″, 4150 steel, M4 contour, phosphate finish, 1:7 twist, 1/2″x28 thread, carbine-length gas
- Upper receiver: Mil-spec 7075-T6 aluminum, FDE Cerakote
- Handguard: 10″ free-float KeyMod, FDE Cerakote
- SKU: DT12-191
What’s included:
- Upper receiver (7075-T6, FDE Cerakote) with dust cover and forward assist installed
- 10.5″ 4150 steel barrel (phosphate, M4 contour, 1:7 twist)
- 10″ free-float KeyMod handguard with barrel nut and mounting hardware
- Pinned low-profile gas block
- carbine gas tube
- A2 flash hider with crush washer
Note: BCG and charging handle are not included and are available as an add-on.
| Weight | 5 lbs |
|---|
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What’s included with this upper?
The FDE Cerakote receiver, barrel, KeyMod handguard, gas block, gas tube, flash hider, dust cover, and forward assist.
Does this include a BCG and charging handle?
No, both are sold separately and available as add-ons.
Is the gas system installed?
Yes — the pinned low-profile gas block and carbine gas tube are both installed.
What caliber is this upper?
5.56 NATO.
What’s the barrel twist rate?
1:7, ideal for heavier 5.56/.223 bullet weights.
Is there an M-LOK version?
Yes, see the linked FDE M-LOK version above.






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