The Diamondback DB15 Sports South Exclusive features a 7" 5.56 NATO (1/2"x28) heavy, threaded Chrome Moly Vanadium barrel and an additional 10" 300 AAC Blackout (5/8"x24) barrel both with A2 flash hiders; M-LOK handguard; Picatinny rail; SB Tactical SBA3 brace and Magpul MOE K2 Grip; Includes 30rd Magpul Gen3 PMAG MCT.
Brand Diamondback
Category Tactical Rifles
Model DB15
Caliber 5.56 NATO
Gun Platform AR-15 Style
Stock Finish Group Brown
Capacity 30+1
Oal 23" - 28.50"
Sights None
Barrel Finish Black Nitride
Barrel Material Chrome Moly Vanadium
Muzzle A2 Flash Hider
Twist 1:8" RH
Receiver Description Picatinny Rail
Magazine Type Magpul Gen M3 PMAG
Grips Flat Dark Earth Magpul
Handguards M-LOK
Stock Description SB Tactical Brace
Barrel Description Heavy Threaded
Barrel Length 10"
Max Capacity 30
Receiver Finish Flat Dark Earth Cerakote
Trigger Mil-Spec
Stock Finish Flat Dark Earth
Caliber Dictionary
The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.
The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles. — Craig Boddington
