Sons of Liberty Gun Works M4-89 Complete Upper M489UPPER-16-300, 300 Blackout, 16 in Combat Barrel

Name: Sons of Liberty Gun Works M4-89 Complete Upper M489UPPER-16-300, 300 Blackout, 16 in Combat Barrel
Brand: Hinterland Outfitters
Price: 745 USD
Availability: InStock

Sold byHinterland Outfitters•Posted Apr 27, 2026

$745.00

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Deal Summary

Currently in stock.
Caliber: 300blk
Category: parts
SKU: 204766
Brand: Sons Of Liberty

Price History

Deal Details

Sons of Liberty Gun Works M4-89 Complete Upper M489UPPER-16-300, 300 Blackout, 16 in Combat Barrel