Rock River Arms AR-15 A4 Upper Receiver Assembly 450 Bushmaster 20″ Chrome Moly Barrel 15″ Handguard Black

$619.99

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Description

Description

Buy Rock River Arms AR-15 A4 Upper Receiver Assembly 450 Bushmaster 20″ Chrome Moly Barrel 15″ 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 450 Bushmaster
Color Black
Finish Anodized
Material Aluminum
Extra Features Includes One 5 Round Magazine
Barrel Length 20 Inches
Barrel Material 4150 Chrome Moly Steel
Barrel Finish Black
Twist 1:24 Inches
Threads 5/8″-32
Sights No
Chrome Lined No
Gas Block Diameter 0.75 Inches
Gas System Length Rifle
Upper Receiver Type A4 Flat-Top
Bolt Carrier Assembly Included Yes
Muzzle Device RRA Operator Muzzle Brake
Country of Origin United States of America
Compatible With
AR-15

Order Rock River Arms AR-15 A4 Upper Receiver Assembly 450 Bushmaster 20″ Chrome Moly Barrel 15″ Handguard Black Online

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