The AR-57 Upper Assembly redefines the modern sporting rifle, offering a unique caliber option with its 5.7x28mm chambering. This assembly boasts a 16" barrel for optimal performance, catering to enthusiasts seeking a high-velocity, low-recoil shooting experience.
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The AR-57 Upper Assembly combines functionality with advanced material technology. The 16" barrel, finished in black melonite, offers exceptional durability and corrosion resistance, while the 1:9 twist rate is tailored for the 5.7x28mm cartridge, ensuring accurate and stable projectile flight. The assembly's bolt carrier, buffer tube, and flash hider, all crafted from 8620 steel alloy, also receive a black melonite treatment, enhancing the overall resilience and longevity of the components.
Ergonomically designed for performance, this upper assembly features a forged 7075 T6 monobloc aluminum construction, providing a sturdy yet lightweight platform. The integration of a radial muzzle brake not only reduces recoil but also minimizes muzzle rise, allowing for quicker follow-up shots and improved accuracy. The AR-57 Upper Assembly is drilled and tapped, ready for customization with optics or other accessories to suit the shooter's preferences.
AR-57 Upper Assembly Specifications
Caliber: 5.7x28mm
Barrel Length: 16"
Twist Rate: 1:9
Finish: Black Melonite
Frame Material: 7075 T6 Monobloc Aluminum
Bolt Carrier Material: 8620 Steel Alloy
Sights: None
Muzzle: Radial Muzzle Brake
Additional Features: Black Melonite Treatment on Bolt Carrier, Buffer Tube, and Flash Hider
More Information
Barrel Length
16
Caliber
5.7 X 28
Condition
New in Box
Finish Per Color
Black
Manufacturer
AR-57
Manufacturer Part Number
ULT0116
Model
Upper Assembly
Type
Uppers
UPC
051497297985
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV
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