Luth-AR 20 in Bull Barrel Complete Upper Barrel Receiver Assembly Silver/Black 20
$479.99 at OpticsPlanet · 2 stores
In stock Sale
Best price
$479.99at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
In stock now instead
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Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $479.99Salechecked Oct 22, 2026 | Out of stock | Buy at OpticsPlanet |
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 Oct 15, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $479.99 | $479.99 | $479.99 |
Since Oct 15, 2026.
About this part
The Guntec USA AR-15 5.56mm Complete Upper Kit Black is an AR-15 complete upper receiver from Guntec Usa. One store lists it, OpticsPlanet at $479.99.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Specifications
- Manufacturer
- Guntec Usa
- Color
- Black
- Type
- Complete
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
Guntec USA AR-15 5.56mm Complete Upper Kit Black. The goal is to distribute excellent quality at an economical value. Specifications for Guntec USA AR-15 5.56mm Complete Upper Kit: Manufacturer: Guntec USA Caliber: 5.56mm Overall Length: 11.375 in Barrel Length: 5.5 in Barrel Twist Rate: 1-5 Firearms Threads Per Inch: 1/2x28 Muzzle Device: Mini Muzzle Brake Finish: Anodized Color: Black Fabric/Material: T6 Aluminum 4150 Steel Handguard Length: 4 in Gun Make: AR Platform Gun Model: AR-15 Barrel Material: 4150 CMV Steel Charging Handle Included: MIL-SPEC Magazine Included: No Features of Guntec USA AR-15 5.56mm Complete Upper Kit 5.56 Upper Receiver. 5.56 Charging Handle. Custom Short Gas Tube. Crush Washer. Kit does not come assembled. 5.56 Complete BCG. Forward assist asssembly. Steel Low Pro .750 Gas Block. Mini muzzle brake. 5.56 Ejection door assembly. 4in M-LOK compression handguard with barrel nut & hardware. Package Contents: Guntec USA AR-15 5.56mm Complete Upper Kit What firearm models does the manufacturer say Guntec USA AR-15 5.56mm Complete Upper Kit is compatible with? The manufacturer suggests that Guntec USA AR-15 5.56mm Complete Upper Kit is compatible with AR-15Guntec USA GT-C-UPPER-5.5-MLK-MINI: AR-15 5.56mm Complete Upper Kit Black
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