Diamondback DB15 CA Compliant Features The Diamondback DB15 uses a medium-profile 4150 Chrome Moly barrel finished in Black Nitride for corrosion resistance and long service life under repeated firing. Chambered in 5.56 NATO with a 1:8 RH twist rate the barrel is matched to a wide range of bullet weights for consistent reliable accuracy across common factory loads. A shot-peened magnetic particle inspected Mil-Spec 8620 bolt carrier group ensures dependable cycling shot after shot standing up to the demands of range use and duty-style practice alike. The A2 flash hider threaded 1/2x28 controls muzzle flash while keeping the rifle compliant with California configuration requirements so shooters get a functional muzzle device without running afoul of state law. Forged 7075-T6 aluminum upper and lower receivers provide a rigid durable foundation finished in black hardcoat anodize for long-term wear resistance against scratches and corrosion. The A3 flattop upper carries a Picatinny rail across the receiver giving shooters a standard mounting surface for optics of their choice from red dots to low-power variable scopes. Magpul MOE furniture including the grip and stock delivers a comfortable proven ergonomic package trusted across the AR-15 platform for a solid cheek weld and confident handling. Shipping with a 10-round Magpul Gen M3 PMAG and an AR Maglock kit to maintain compliance this DB15 is a ready-to-run rifle for California shooters who want a dependable fully assembled platform straight out of the box. Diamondback DB15 Specifications Brand: Diamondback Model: DB15 Type: Semi-Auto Rifle Caliber: 5.56 NATO Capacity: 10+1 Barrel Length: 16 Twist Rate: 1:8 RH Barrel Finish: Black Nitride Receiver Finish: Black Hardcoat Anodize Handguard: 15 M-LOK Stock: Magpul MOE Muzzle Device: A2 Flash Hider Weight: 6.6 lbs State Compliance: California Available At: GrabAGun