Sons of Liberty Gun Works M4 L89 Semi-Automatic Rifle 5.56NATO 13.9" Barrel (1)-30Rd Magazine B5 Bravo Black Synthetic Stock Ranger Green Finish
The Sons of Liberty M4 features a direct impingement operating system; quick ambi safety w/50 degree throw; B5 Bravo stock; Button Cut, V2 profile, threaded barrel; L89Drivelock handguard and B5-P23 grips.
Brand: Sons Of Liberty Gun Works
Category: Tactical Rifles
Series: L89
Model: M4
Caliber: 5.56 NATO
Barrel Length Range: 13" to 13.99"
Gun Platform: AR-15 / M4
Operating System: Direct Impingement
Stock Finish Group: Black
Capacity: 30+1
Stock Material: Synthetic
Action: Semi-Auto
Oal: 32"
Hand: Ambidextrous
Sights: None
Barrel Finish: Black QPQ
Barrel Material: Chrome Moly Vanadium
Twist: 1:7"
Receiver Description: Picatinny Rail
Grips: Black B5-P23
Handguards: M-LOK
Receiver Material: Aluminum
Safety: Ambi w / 50 Degree Throw
Stock Description: B5 Bravo
Barrel Description: Button Rifled
Barrel Length: 13.90"
Max Capacity: 30
Receiver Finish: Ranger Green Anodized
Weight: 6.50 lbs
Stock Finish: 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
