Assembled, headspaced and test fired in Brownstown, Indiana. BCG and charging handle included.
Every One Horse AR-15 upper is a complete upper: assembled, headspaced and test fired in Brownstown, Indiana, with the BCG and charging handle installed. Choose 7.5″, 10.5″ or 16″ in 5.56/.223 or 300 Blackout, or the 18″ 6mm ARC, and pin it to any mil-spec lower.
5.56 / .223, .300 BLK and 6mm ARC. Sale prices shown.
| Upper | SKU | Profile | Twist | Thread | Gas | Handguard | Price |
|---|---|---|---|---|---|---|---|
| 16″ 5.56/.223 | OH-CU01 | SOCOM | 1:8 | 1/2×28 | Mid-length | 15″ | |
| 16″ 5.56/.223 HBAR | OH-CU08 | HBAR | 1:8 | 1/2×28 | Mid-length | 15″ | |
| 16″ .300 BLK | OH-CU04 | SOCOM | 1:7 | 5/8×24 | Pistol | 15″ | Notify Me When Available |
| 10.5″ 5.56/.223 | OH-CU02 | Medium | 1:7 | 1/2×28 | Pistol | 10″ | |
| 10.5″ .300 BLK | OH-CU05 | Medium | 1:7 | 5/8×24 | Pistol | 10″ | |
| 7.5″ 5.56/.223 | OH-CU03 | Medium | 1:7 | 1/2×28 | Pistol | 7″ | |
| 7.5″ .300 BLK | OH-CU06 | Medium | 1:7 | 5/8×24 | Pistol | 7″ | Notify Me When Available |
| 18″ 6mm ARC | OH-CU09 | HBAR | 1:7.5 | 5/8×24 | Rifle-length | 15″ |
All include an M16 black nitride BCG and standard charging handle. Handguards are free-float M-LOK. Specs and prices from the live product pages.
The 7.5″, 10.5″ and 16″ .300 BLK complete uppers all use a 1:7 twist, 5/8×24 thread and pistol-length gas.
5.56/.223 uppers use a 1/2×28 thread. .300 BLK uses 5/8×24 and pairs with the One Horse Ryn .30 cal suppressor. 6mm ARC also uses 5/8×24.
16″ uppers get a 15″ handguard. 10.5″ uppers get 10″. 7.5″ uppers get 7″.
16″ 5.56/.223 uppers are mid-length. The 16″ .300 BLK and every 10.5″ and 7.5″ upper are pistol-length. The 18″ 6mm ARC is rifle-length.
Each upper ships with a black nitride BCG. Gold TiN, Chameleon and Nickel are installed options. Compare finishes on the BCG page. .300 BLK and 5.56/.223 use the same BCG: see the 300 Blackout BCG.
Shopping 10.5″? See the 10.5″ upper guide and short AR-15 uppers.
BCG and charging handle installed.
10.5″ .300 BLK AR-15 Complete Upper.300 BLK · 5/8×24 · 10″ M-LOK10.5″ .300 BLK AR-15 Complete Upper.300 BLK · 5/8×24 · 10″ M-LOKAvailable SoonNotify Me When AvailableYes. Every One Horse complete upper comes with an M16 black nitride BCG and a standard charging handle installed.
Yes. They are built for any standard mil-spec AR-15 lower receiver.
No. A complete upper is not the serialized part, so it ships straight to you. Check your state and local law before you order.
Yes. One Horse complete uppers are assembled, headspaced and test fired in Brownstown, Indiana.
Yes. Three complete 300 Blackout (.300 BLK) uppers: 7.5″, 10.5″ and 16″, each with a 1:7 twist, 5/8×24 thread, pistol-length gas, BCG and charging handle installed.
7.5″, 10.5″ and 16″ in 5.56/.223 and .300 BLK, plus an 18″ 6mm ARC.
That is the correct gas system for that upper. One Horse builds the 16″ .300 BLK with pistol-length gas.
Yes. Gold TiN, Chameleon and Nickel BCGs are offered as installed options on each upper’s product page.
5.56/.223 uppers use 1/2×28. .300 BLK and 6mm ARC uppers use 5/8×24. Match your muzzle device or suppressor mount to the thread.
Orders of $399 or more ship free.
Yes. One Horse backs its complete uppers with a Limited Lifetime warranty.
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Free shipping on orders $399 or more
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