Maximum precision in a compact form - Upper Rock River Arms 7" for AR-15
Strength, precision and reliability - the Upper Rock River Arms BB1525 is the perfect choice for those who want the highest quality and uncompromising performance in a compact configuration. Developed with dynamic shooters in mind, it provides a perfect fit for the AR-15 platform, delivering the reliability you need in any situation. Its solid construction, reliable lock and precision barrel make it ideal for professionals and shooting enthusiasts alike.
With a barrel length of 7 inches, this kit offers maneuverability and speed, excelling at close range. The .223 Rem / 5.56 NATO caliber provides versatility and ammunition availability, making it an even more practical choice.
Features of the Rock River Arms upper for AR-15 7" cal. 223 Rem/5.56 NATO:
- Wide range of compatible accessories available on the market
- Self-supporting front bed equipped with M-LOK standard mounting holes
- Self-supporting 7-inch-long barrel not connected to the bed
- Chrome-plated 158 high-carbon steel lock
- Low-profile gas block for easy attachment of a narrow bed
- Mounting rail along the entire length of the chamber in standard 22 mm
The barrel's thread pitch is 1:7 inches and allows the use of both light and heavy bullets. It is worth noting that all components are made of the best materials, and the individual components ensure trouble-free operation.
The use of a gas system with direct injection of powder gases into the slide has reduced the feeling of recoil. Compatibility with the Mil-Spec standard and a front bed equipped with an M-LOK mount and a 22mm Picantinny rail give a wide range of possibilities to modify the weapon according to personal preferences.
The operating principle of the Rock River Arms Upper for AR-15 7"
Upper is based on the classic gas system developed by ArmaLite. It uses gunpowder gases that, through a hole in the barrel and then a gas tube, enter the slide, pushing it apart and unclamping it. The advantage of such a system is the reduced weight of the moving assembly, reduced recoil sensation and smooth operation of the breech. The weapon is bolted by rotating the breech with 6 symmetrical bolts. The 8620 steel slide has been hardened by a chemical process. The lock itself is made of 158 high-carbon steel.
The barrel in the Rock River Arms upper for the AR-15 7"
The breech chamber is equipped with a thin-walled barrel with a length of 7 inches and a thread pitch of 1:7. Its surface has been chrome plated to protect it from the corrosive effects of powder gases and water. It is finished with a ½ x 28 thread with A2 flame suppressor. The openwork front bed with angles at 3, 6 and 9 o'clock has M-LOK standard holes. With their help, you can easily install additional accessories like a flashlight, foregrip, angle grip or additional sighting device. At the front and rear of the bed two short sections of 22mm rail were applied for sighting instruments.
