Upgrade the top half of your AR-15 with this premium 17.1″ Stainless Steel 223 Wylde Upper Receiver. Built for performance and durability, this upper features a flat spiral fluted barrel chambered in .223 Wylde (compatible with both 5.56 NATO and .223 Remington). Perfect for accuracy and reliability in your next build.
Pair this upper with our AR-15 Lower Build Kits for a complete rifle.
FEATURES:
- 17.1″ Stainless Steel 223 Wylde 1:8 twist barrel
- Shoots both 5.56 NATO and .223 Remington
- 1:8 twist rate for excellent accuracy with a wide range of bullet weights
- 1/2×28 threaded muzzle with A2 flash hider
- 15″ M-LOK freefloat handguard
- Mid-length gas system for smoother cycling
- 7075-T6 mil-spec anodized black upper receiver
- Includes dust cover and forward assist
QUALITY ASSEMBLY
All uppers are professionally assembled, torqued, and also tested if ordered with a BCG. Moly grease is applied to critical contact points to ensure long-lasting performance. Loctite is applied to gas block screws. Barrels are dimpled for proper gas block alignment and secure installation.
WHY BUY FROM MIDSTATE FIREARMS?
- Wide selection of AR-15 Complete Uppers
- Compatible with AR-15 Lower Parts Kits
- Built with quality, precision, and attention to detail
- Fast & Friendly Customer Service
