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Rock River Arms AR-15 Upper Receiver Assembly 450 Bushmaster 16" Stainless Barrel M-LOK Handguard Black

Name: Rock River Arms AR-15 Upper Receiver Assembly 450 Bushmaster 16" Stainless Barrel M-LOK Handguard Black
Brand: MidwayUSA
Price: 630.69 USD
Availability: InStock

MidwayUSA · Complete Uppers

$630.69 In stock

Buy at MidwayUSA

Current: $630.69
Lowest seen: $630.69
Highest seen: $741.99

Tracked since May 29, 2026 · 1 price change.

Rock River Arms AR-15 Upper Receiver Assembly 450 Bushmaster 16" Stainless Barrel M-LOK Handguard Black

Price history · the price at each change, across the full time tracked

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