Tacfire Build Kit for AR-15 45 ACP Complete Rifle, Nitride Black
$344.99 at Ammunition Depot · 4 stores
In stock
Stern Defense MOD5 MLOK 16.1" 45 ACP AR-15 Complete Upper
Stern Defense · Upper Receiver
No ratings yetBest price
$593.11at OpticsPlanet
In stock Sale checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet Best price | $593.11Salechecked Oct 1, 2026 | In stock | Buy at OpticsPlanet | |
| MidwayUSA | $624.12checked Oct 1, 2026 | In stock | Buy at MidwayUSA | |
| Palmetto State Armory | $593.99Salechecked Oct 1, 2026 | Check store | Buy at Palmetto State Armory |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $593.11 at OpticsPlanet. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| MidwayUSA | $624.12 | $624.12 | $624.12 |
| OpticsPlanet | $593.11 | $593.11 | $593.11 |
| Palmetto State Armory | $593.99 | $593.99 | $593.99 |
Since Sep 28, 2026.
About this part
The Stern Defense MOD5 MLOK 16.1" 45 ACP AR-15 Complete Upper is an AR-9 complete upper receiver from Stern Defense. It's sold by 3 stores (2 in stock), from $593.11 to $624.12. The lowest in-stock price in the last 30 days was $593.11 at OpticsPlanet.
Fits and works with
- Caliber
- .45 ACP · Shop matching ammo
- Bolt
- .45 ACP · Bolt carrier groups
- Barrel length
- 16.1" · Handguards
Specifications
- Manufacturer
- Stern Defense
- Type
- Complete
- Platform
- AR-9
- Caliber
- .45 ACP
From the manufacturer
Stern Defense MOD5 MLOK 16.1" 45 ACP AR-15 Complete Upper
Similar upper receiver
Tacfire Build Kit w/ LPK 7.5" Nitride Black Barrel for AR-15 45 ACP Complete Pistol
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