Spikes Tactical .223 Rem/5.56 16" Barrel Complete Upper Assembly, Mil-Spec Phosphate Coated, Black M4
$567.00 at OpticsPlanet · 3 stores
In stock Sale
Ascent 5.56x45 NATO 16" Complete Upper Receiver Black
Faxon Firearms · Upper Receiver
No ratings yetBest price
$529.00at Brownells
Out of stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells | $529.00checked Oct 1, 2026 | Out of stock | Buy at Brownells |
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
Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $529.00 | $529.00 | $529.00 |
Since Sep 28, 2026.
About this part
The Ascent 5.56x45 NATO 16" Complete Upper Receiver Black is an AR-15 complete upper receiver from Faxon Firearms. One store lists it, Brownells at $529.00.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Barrel length
- 16" · Handguards
Specifications
- Manufacturer
- Faxon Firearms
- Color
- Black
- Type
- Complete
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
Faxon Firearms set out to create a dependable and affordable 5.56 upper receiver group that will be a drop-in fit to complete your newest AR-15 build, or as a replacement or spare upper for the firearm you already own. The Faxon Ascent Complete 5.56 Upper Receiver Group features a 10.5" or 16" 5.56 Gov/Socom profile barrel, superfinished full-mass 5.56 Bolt Carrier Group, Enhanced Forged Upper Receiver, and a 9" or 13" Aluminum handguard. The Faxon Ascent Complete 5.56 Upper Receiver Group is compatible with all mil-spec AR-15 lower receivers and parts. The Faxon Ascent Complete 5.56 Upper Receiver Group is backed by Faxon's Lifetime Guarantee. Features Mfg: Faxon Firearms
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