Description

Buy Rock River Arms AR-15 Varmint A4 Upper Receiver Assembly 223 Wylde 20″ Stainless Steel Barrel M-LOK Handguard Black Online

The Rock River Arms AR-15 Upper Receiver Assembly is designed to pin onto any mil-spec lower receiver. Just add an optic, or set of sights, and you are ready to send lead downrange!

Features

Flattop upper receiver
Mil-spec compatible
Anodized finish

Specifications

Product Information

Cartridge	223 Remington
Color	Black
Finish	Anodized
Material	Aluminum
Barrel Length	20 Inches
Barrel Material	Stainless Steel
Barrel Finish	Stainless
Twist	1:8 Inches
Barrel Contour	Bull
Sights	No
Chrome Lined	No
Gas Block Diameter	0.92 Inches
Gas System Length	Rifle
M4 Feed Ramps	Yes
Upper Receiver Type	A4 Flat-Top
Handguard	17″ RRA Lightweight Free Float M-Lok
Bolt Carrier Assembly Included	Yes
Country of Origin	United States of America
Compatible With	AR-15