Diamondback Diamond DB15 Flat Dark Earth Features The Diamond DB15 is designed with a focus on functionality and user comfort. The 1-in-8 rate of twist in the barrel is optimized for stabilizing a wide range of bullet weights enhancing accuracy with both .223 Rem and 5.56 NATO rounds. The rifle features a collapsible/folding stock with a Magpul CTR stock providing ergonomic handling and adaptability for various shooting positions. This model includes a threaded barrel with a 1/2x28 thread pattern allowing for easy attachment of suppressors or other muzzle devices. The rifle is equipped with a 15 M-LOK Anti-Rotation Rail offering versatility for mounting accessories. The Obsidian Muzzle Brake helps to minimize recoil and muzzle climb and the Magpul MOE K2+ grip offers a comfortable and secure hold. Diamondback Diamond DB15 Flat Dark Earth Specifications Manufacturer: Diamondback Firearms Family: Obsidian Series Model: Diamond DB15 Rifle Type: Rifle Action: Semi-Auto Caliber/Gauge: 223 Rem | 5.56 NATO Finish: Flat Dark Earth Cerakote Stock: Collapsible / Folding Stock Stock/Grips: Magpul CTR Stock Barrel Length: 16 Overall Length: 33 to 36.25 Rate of Twist: 1-in-8 Capacity: 30 + 1 Number of Magazines: 1 Magazine Description: 30 rounds PMAG Sights: None Thread Pattern: 1/2x28 Special Feature: Threaded Barrel Weight: 6.6 lbs. Safety Features: 2-Position Thumb Safety Receiver: Forged 7075 T-6 Aluminum Additional Info: 15 M-LOK Anti-Rotation Rail Additional Info: Obsidian Muzzle Brake Additional Info: Magpul MOE K2+ Grip