Alex Pro Firearms Guardian Semi-Automatic Rifle 5.56mm NATO 16" Barrel (1)-30Rd Magazine M4 Collapsible Stock Crimson Red Finish
APF firearms are made in America's heartland by craftsmen passionate about firearms, the outdoors, and supporting our nation's law enforcement agencies. Whether in the field or on the range, APF builds the caliber you want and offers an array of unique finishes and accessories to bring you the perfect rifle.
Features : -16" 4150 Mag Phos-coated barrel
-15" Slim M-LOK handguard
-Gas system/specs may vary by caliber
-M16 Bcg
-M4 Adjustable Stock
-A2 Pistol Grip
-A2 "Birdcage" flash hider
Manufacturer: Alex Pro Firearms
Model: Guardian
Action: Semi-automatic
Type: AR
Caliber: 556NATO
Caliber: 223 Remington
Barrel Length: 16"
Color: Crimson
Grips: Polymer
Accessories: 1 Mag
Capacity: 30 Rounds
Subcategory: Modern Sporting Rifles
Finish: Cerakote
Stock: M4 Collapsible
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
