FN America Guardian Semi-automatic Rifle 556 NATO 16" Barrel (1)-30Rd Magazine Black Synthetic Finish
FEATURES : -15-inch free-float handguard with continuous 12 O’clock Picatinny rail
-24 M-LOK® slots at 3, 6 and 9 O’clock
-Precision-tuned 16-inch barrel, mid-length
-8620 steel, nitride-coated bolt carrier and 9310 steel, MPI bolt
-Mid-length gas system, low-profile gas block
Manufacturer: FN America
No Direct Ship To Rhode Island
No Direct Ship To Washington
No Sale To Illinois Pica
Barrel Length In Inches: 16
Caliber: 5.56 Nato
Checkering: No
Detachable Magazine: Yes
Dimension: 4.9 X 9.9 X 42.5
Hinged Floorplate: No
Magazine Capacity: 30
Metal Finish: Colored
Newitem Yes : Other Features: 15" Free Float Handguard With Continuous 12 O Clock Rail 24 M-lok Slots Mid Length Gas System Barrel W/a2 Compensator
Overall Length In Inches: 32.1
Rate Of Twist: 1:7"
Recoil Pad: No
Sights: Yes
Stock Material: Synthetic
Swivel Studs: No
Type Action: Semi-automatic
Weight In Pounds: 6.6
Other Features2: Custom Fm 6- Posistion Stock 32.1-35.5" Mil-spec Trigger
Height: 4.9
Width: 9.9
Length: 42.5
Stock Color: Black
Metal Color: Black
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
