CMMG Resolute MK4 Semi-Automatic Rifle 5.56mm NATO 16.1" Barrel (1)-30Rd Magazine Synthetic Stock Charcoal Green Cerakote Finish
FEATURES : -ZEROED Drop-In Trigger
-ZEROED Pistol Grip
-ZEROED Trigger Guard
-ZEROED 60°/90° Ambi Safety
-ZEROED AR15 Ambi Charging Handle
-ZEROED Ambi Mag Catch
-ZEROED Extended Mag Release Button
-ZEROED AR15 Bolt Catch
-ZEROED AR15 Polymer Dust Cover
-ZEROED Muzzle Brake 5.56mm
Manufacturer: CMMG
No Direct Ship To Rhode Island
No Direct Ship To Washington
No Sale To Illinois Pica
Barrel Length In Inches: 16.1
Caliber: .223 Rem/5.56 Nato
Checkering: No
Detachable Magazine: Yes
Dimension: 3.3 X 10.2 X 41.05
Hinged Floorplate: No
Magazine Capacity: 30
Metal Finish: Colored
New item: Yes
Other Features: Zeroed Trigger, Zeroed Pistol Grip, Cmmg Ripstock Butt Stock, Cmmg Eml15 M-lok Handguard, .750" Mid-length Gas System
Overall Length In Inches: 32.5
Rate Of Twist: 1:7"
Recoil Pad: No
Sights: No
Stock Material: Synthetic
Swivel Studs: No
Type Action: Semi-automatic
Weight In Pounds: 6.44
Other Features2: 1/2-28" Muzzle Threads, Zeroed Sv Muzzle Brake, 4140 Cm Barrel Material, Ambidextrous Controls, Cerakote Charcoal Green
Height: 3.3
Width: 10.2
Length: 41.05
Stock Color: Black
Metal Color: Bi-tone
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
