Stern Defense SD 4in Mod4 M-LOK 4in Barrel 9mm Black Complete Upper Receiver Black SDINBRLKK
$419.27 at OpticsPlanet · 3 stores
In stock Sale
Enhanced EPC-9 9mm Assembled Upper 11" Bbl 9.3" Handguard Black
Aero Precision · Upper Receiver
No ratings yetBest price
$425.99at Kentucky Gun Co
Out of stock checked Oct 23, 2026
In stock now instead
- Stern Defense SD 4in Mod4 M-LOK 4in Barrel 9mm Black Complete U… $419.27at OpticsPlanet
- ABC RIFLE COMPANY AR9 9mm Luger Pistol Billet 4in Barrel M-LOK … $409.99at OpticsPlanet
- ABC RIFLE COMPANY AR9 9mm Luger Pistol Billet 4in Barrel M-LOK … $409.99at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Kentucky Gun Co Best price | $425.99checked Oct 23, 2026 | Out of stock | Buy at Kentucky Gun Co | |
| Brownells | $479.99checked Oct 23, 2026 | Out of stock | Buy at Brownells | |
| OpticsPlanet | $479.99Salechecked Oct 23, 2026 | Out of stock | Buy at OpticsPlanet | |
| MidwayUSA | $479.99checked Oct 23, 2026 | Out of stock | Buy at MidwayUSA |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
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Price history
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $479.99 | $479.99 | $479.99 |
| Kentucky Gun Co | $425.99 | $425.99 | $425.99 |
| MidwayUSA | $479.99 | $479.99 | $479.99 |
| OpticsPlanet | $479.99 | $479.99 | $479.99 |
Since Sep 28, 2026.
About this part
The Enhanced EPC-9 9mm Assembled Upper 11" Bbl 9.3" Handguard Black is an AR-9 complete upper receiver from Aero Precision. It's sold by 4 stores, from $425.99 to $479.99.
Fits and works with
- Caliber
- 9mm · Shop matching ammo
- Bolt
- 9mm · Bolt carrier groups
- Barrel length
- 11" · Handguards
- Handguard length
- 9.3" · Barrels
Specifications
- Manufacturer
- Aero Precision
- Color
- Black
- Type
- Complete
- Platform
- AR-9
- Caliber
- 9mm
From the manufacturer
This EPC-9 Complete Upper Receiver comes standard with our Enhanced Gen 2 Handguard. Our Enhanced M-LOK Handguards provide a lightweight free float design for your custom build. The M-LOK system allows advanced modularity past the current 1913 picatinny rail system. Machined to mil-spec dimensions and engineered to perfection, this handguard eliminates bulk while retaining strength and stability. Includes: EPC-9 Enhanced Upper Receiver 7.3""/9.3""/15"" Enhanced M-LOK Gen 2 Handguard 8.3""/11""/16"" 9mm CMV Barrel Product comes assembled This complete upper receiver does not include BCG or Char Mfg: Aero Precision
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