FN 15® Heavy Barrel Carbine 5.56 16" Heavy Barrel *State Compliant Model* 10 Round Black Combining rock-solid reliability with pinpoint accuracy and battle-hardened durability, the FN 15® MD Heavy Barrel Carbine is ready for the firing line. This rifle features a free-floated, 16-inch cold hammer-forged, chrome-lined heavy profile barrel and 12-inch M-LOK rail, FN combat-grade trigger weighted at 4.75-7.75 lbs., fixed low-profile gas block and PWS muzzle break.
CALIBER: 5.56x45mm
OPERATION: Direct impingement
MAG CAPACITY: 10 Rd.
WEIGHT: 7.1 lb.
Barrel Length: 16"
Overall Length: 32.5" - 35.6"
Primary Features
Heavy barrel profile with free float Midwest industry rail 12” with M-LOK™
Receiver
Hard-anodized aluminum
Flat-top receiver, M1913 MIL-SPEC rail at the 12 o’clock position
Midwest industry rail 12” with M-LOK™
Barrel
16-inch cold hammer-forged, chrome-lined
free floating barrel with pinned gas block and PWS muzzle brake
Stock
Collapsible, 6-position with sling mount
A2 pistol grip
Trigger
FN Combat Trigger
Operating Controls
Ergonomic safety lever and magazine release
Forward Assist
Magazine
Magpul PMAG®
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
