Description
 
UPC
736676903580
ID
35744 ∴
Category
Parts & Gear > Upper Receivers
Manufacturer
Ruger
Model
90358
Caliber
223 REM
Type
Semi-Automatic
Caliber
.223 Remington
Barrel Length
16.12"
Sights
Detachable Iron
Weight
3.000
Barrel Material
41V45 Steel
Barrel Twist
1:9
Barrel Description
Heavy Contour
Barrel Finish
Black
Receiver Description
Black
Description
The SR-556 Upper Receiver comes from the factory with a plethora of parts that are popular aftermarket add-ons to the traditional AR platform. These uppers feature an adjustable two stage gas piston system that significantly reduces the amount of fouling introduced to the receiver. The piston and gas tube are both hard chromed to ensure long life and reliability. In fact chrome seems to be a common thread with the SR-556 upper. The bolt carrier, gas regulator, and barrel (hammer forged in-house from Mil-Spec 41V45) are all chromed. The barrel is available threaded or with permanent flash hider. Also featuring folding detachable iron sights, and quad rail forearm.