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

Name: Rock River Arms AR-15 A4 Complete Upper Receiver 450 Bushmaster 20" Chrome Moly Barrel 15" Handguard Black
Brand: MidwayUSA
Price: 704.99 USD
Availability: InStock

Sold byMidwayUSA•Posted Apr 27, 2026

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$704.99

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Deal Summary

Currently in stock.
Caliber: 450 bushmaster
Category: parts
UPC: 842834125531
SKU: 747638
Brand: Rock River Arms

Price History

Deal Details

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! FeaturesFlattop upper receiverMil-spec compatibleAnodized finish

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