Details
Dunewatch 10.5-Inch Carbine-Gas 1:8 5.56 NATO AR-15 FDE Drop-In Polymer Handguard Pistol Complete Upper Build
The Dunewatch Complete Upper is built around a 10.5-inch 5.56 NATO barrel machined from 4150 chrome moly vanadium steel in a government profile, with a carbine-length gas system and a black Nitride finish. It pairs a slick-side A1 carry handle upper receiver machined from 6061-T6 billet aluminum with a carbine-length drop-in handguard in Flat Dark Earth, giving the build a classic profile with a modern, earth-toned look. The 1:8 twist rate suits a wide range of bullet weights in 5.56 NATO, and the short barrel keeps the rifle compact and quick to handle. Charging handle details were not supplied with this listing.
Key Features
- 10.5-inch government profile barrel, 4150 chrome moly vanadium steel, black Nitride finish, 1:8 twist, 5.56x45mm NATO
- Carbine-length gas system with an A2 F-marked front sight base on taper pins, sized for a .750-inch gas journal
- Slick-side A1 carry handle upper receiver, 6061-T6 billet aluminum, anodized finish
- Carbine-length drop-in handguard, Flat Dark Earth
- AR-15 A2 GI birdcage flash hider on 1/2x28 threads
- Complete bolt carrier group with a 9310 alloy steel bolt head and 8620 alloy steel carrier body, Nitride finish
Barrel and Gas System
The 10.5-inch barrel is machined from 4150 chrome moly vanadium steel in a government profile and finished in black Nitride, a surface treatment that adds hardness and corrosion resistance while leaving a clean, matte black look. Its 1:8 twist rate is suited to a wide range of bullet weights in 5.56 NATO. The gas system is carbine-length and uses an A2 F-marked front sight base secured with taper pins, sized for the barrel's .750-inch gas journal. At the muzzle, 1/2x28 threads carry the included AR-15 A2 GI birdcage flash hider.
Upper Receiver and Handguard
The upper receiver is a slick-side A1 carry handle style unit machined from 6061-T6 billet aluminum and finished in anodizing, giving it a hard, wear-resistant surface that holds up to regular handling. It is paired with a carbine-length drop-in polymer handguard in Flat Dark Earth. Because it is a drop-in design, the handguard retains to the barrel assembly rather than free-floating, which keeps installation simple and the look traditional.
Bolt Carrier Group
The included complete bolt carrier group uses a bolt head machined from 9310 alloy steel and a carrier body machined from 8620 alloy steel, both finished in Nitride. Nitride adds hardness and corrosion resistance and helps the group stand up to repeated cycling.
Compatibility
This upper is built for AR-15 lower receivers chambered in 5.56 NATO. Charging handle inclusion, feed ramp style, ejection port door and forward assist configuration, and handguard material were not supplied with this listing and should be confirmed before purchase.
Follow all manufacturer instructions and safe handling practices.
Ensure compliance with all applicable federal, state, and local laws.
