Bushmaster ORC II Pro Semi-Automatic Rifle 5.56 NATO 16" Barrel (1)-30Rd Magazine Aqua/Black Synthetic Stock Robin's Egg Blue Cerakote Finish
The ORC II is perfect for customization. Features a 7075 Forged A4 Flattop upper receiver; 7075 forged XM15-E2S lower receiver, 14" handguard; carbine-length gas system and a threaded barrel. Its Salt Bath Nitride MPI Bolt Carrier Group guarantees consistent and reliable firing.
Brand: Bushmaster
Category: Rifles
Series: Pro
Model: ORCII
Caliber: 5.56 NATO
Barrel Length Range: 16" to 16.99"
Stock Finish Group: Blue
Capacity: 30+1
Stock Material: Synthetic
Action: Semi-Auto
Oal: 33.75"- 37"
Sights: None
Barrel Finish: Salt Bath Nitride
Barrel Material: Chrome Moly Vanadium
Muzzle: A2 Flash Hider
Twist: 1:7"
Receiver Description: Picatinny Rail
Grips: Aqua Hogue AR15 BFG
Handguards: M-LOK
Receiver Material: Aluminum
Safety: Mil-Spec Selector
Thread Pattern: 1 / 2"x28
Stock Description: BFI M4 Carbine
Barrel Description: Threaded
Barrel Length: 16"
Max Capacity: 30
Receiver Finish: Robin's Egg Blue Cerakote
Trigger: Mil-Spec
Weight: 5.60 lbs
Stock Finish: Aqua / 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
