CMMG Dissent BR4 Semi-Automatic Rifle 5.56 NATO 16.1" Barrel (2)-10Rd Magazines Black Magpul SGA Stock Coyote Tan Cerakote Finish
Picking the Br4 is easy, but choosing the right caliber to add to your safe will be a challenge. If you're leaning towards the tried and true 5.56mm, you won't do wrong with the 14.5" P&W Br4. Although the barrel is 14.5" the ZEROED SVD muzzle brake is pinned & welded to the muzzle, bringing the barrel's OAL to 16.1" which means no NFA tax stamp is needed as well as being in one of the best-looking rifles in its class. Comes with (2) Magpul 10rd PMAG.
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
