Stern Defense SD BU9 Bolt Carrier AR-15 Glock-Pattern Upper Receiver 9mm Black 004-SD BU9-D1-M

Upper Stern Defense UPC 860141001522 MPN 004SDBU9D1M

$108.64

at BattleHawk Armory · checked 2 hours ago

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8 retailers · $129.99 to $141.94 shipped

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Lowest seen: $108.64
Typical price: $109.75
Tracked since: Apr 9, 2026

Today's best price matches the 213-day low and is 1% below typical.

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