Bushmaster M4 Patrolman's 20" AR-Style Upper Receiver 5.56x45mm 1:7, Black - 0040008BLK
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Bushmaster
Overview
The Bushmaster M4 Patrolman's 20" AR-Style Upper Receiver 5.56x45mm 1:7, Black - 0040008BLK is a upper receiver. Compare prices from multiple merchants and find the best deal.
Specifications
Bushmaster M4 Patrolman's 20" AR-Style Upper Receiver 5.56x45mm 1:7, Black - 0040008BLK
Build history on GunPartPicker
Builders have been adding the Bushmaster M4 Patrolman's 20" AR-Style Upper Receiver 5.56x45mm 1:7, Black - 0040008BLK to their builds on GunPartPicker since March 2026. All time, it ranks #702 of the 1,787 upper receivers builders have added.
It was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $583.02 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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