Stern Defense 9mm Complete Bolt Carrier Group, Mag-Phosphate Finish - SD BU9

Name: Stern Defense 9mm Complete Bolt Carrier Group, Mag-Phosphate Finish - SD BU9
Brand: Palmetto State Armory
Price: 146.99 USD
Availability: InStock

Sold byPalmetto State Armory•Posted May 18, 2026

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Deal Summary

Currently in stock.
Caliber: 9mm
Category: parts
UPC: 860141001522
SKU: 5165491017
Brand: Stern Defense

Price History

Deal Details

Made with 8620 AISI steel and boasting a Mag-Phosphate finish, the Stern bolt fits into Mil-Spec and Glock-pattern upper receivers. It functions with Colt SMG, Glock magazines and it's fully compatible with standard AR15/M16 charging handles. Comes fully assembled with all sub-components installed, including firing pin/spring/retaining pin, extractor, and extractor spring. Also included in bolt assembly is a propriety center and roll pins. Our 9mm bolts incorporate our new bolt design which