Davidson Defense Tough Guy 10.5-inch Carbine-Gas 5.56 NATO AR-15 Rifle Assembled Upper Receiver

Meet the Davidson Defense Tough Guy 10.5" Carbine-Gas 5.56 NATO AR-15 Rifle Upper Build Kit—a no-nonsense, hard-hitting setup built for those who like their gear as rugged as their attitude. Chambered in 5.56x45mm NATO, this upper features a tough-as-nails 10.5-inch barrel made from 4150 Chrome Moly Vanadium and finished in nitride to shrug off wear like a true tough guy. The carbine-length gas system keeps things running smooth, while the M4 profile and 1:8 twist rate strike a perfect balance between control and accuracy.

Up top, the 7075-T6 aluminum upper receiver is anodized for strength and resilience, ready to take a beating and keep performing. A 9-inch KeyMod free-float handguard made from 6061-T6 aluminum gives you plenty of space for accessories without weighing you down. It’s capped off with a classic GI Birdcage flash hider and 1/2x28 muzzle threads, perfect for taming muzzle rise in tight spots. Whether you’re piecing together your first build or adding some muscle to your collection, the Tough Guy kit is ready to take on whatever you throw at it—and then some.