Rock River Arms Completed Pistol Upper Receiver A4 .223/5.56mm 20 Inch Barrel Standart Profile 1-9 Twist 1/2-28 Thread A2 Handguard A2 Flash Hider
$418.19 at MidwayUSA · 2 stores
In stock Sale
Dirty Bird AR-15 14.5" Pin & Weld 5.56 Midlength Magpul MOE SL Complete Upper
No ratings yetBest price
$427.95at Dirty Bird
Sale checked Oct 31, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Dirty Bird Best price | $427.95Salechecked Oct 31, 2026 | Check store | Buy at Dirty Bird | |
| AR15Discounts | $459.95checked Oct 31, 2026 | Check store | Buy at AR15Discounts |
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 Oct 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $459.95 | $459.95 | $459.95 |
| Dirty Bird | $427.95 | $427.95 | $427.95 |
Since Oct 28, 2026.
About this part
The Dirty Bird AR-15 14.5" Pin & Weld 5.56 Midlength Magpul MOE SL Complete Upper is an AR-15 complete upper receiver from Dirty Bird. It's sold by 2 stores, from $427.95 to $459.95.
Fits and works with
- Caliber
- 5.56 / .223 · Shop matching ammo
- Bolt
- Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
- Gas system
- Mid-length · Handguards
- Barrel length
- 14.5" · Handguards
Specifications
- Manufacturer
- Dirty Bird
- Type
- Complete
- Platform
- AR-15
- Caliber
- 5.56 mm NATO
From the manufacturer
The Dirty Bird 14.5" Midlength Magpul MOE SL complete upper is a great starting point for your next build. It features a 14.5" barrel chambered in 5.56 NATO that has been pinned and welded with an extended flash hider to reach an overall barrel length of 16". It features a pinned front sight gas block and midlength gas system along with a Magpul MOE SL M-LOK handguard. The upper receiver is forged from aluminum to Mil-Spec dimensions and hardcoat anodized black. Features: 14.5" barrel chambered in 5.56 NATO that has been pinned and welded with an extended flash hider to reach 16". Black Nitride Barrel Finish Pinned front sight gas block Midlength gas system High Pressure Tested and Magnetic Particle Inspected Magpul MOE SL M-LOK handguard Extended A2 flash hider Flat Top M4 upper receiver Forged aluminum to Mil-Spec SUB-MOA Guarantee **Includes BCG and Charging Handle Made in the USA - Backed by Dirty Bird Industries' Limited Lifetime Warranty
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