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

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

SKU 5165491017
Brand Stern Defense
Model Number SD BU9
UPC 860141001522
Customers must read Compliance Information before purchasing.

Product Details


  • Brand: Stern Defense
  • Model: Complete Bolt Carrier Group
  • Caliber: 9mm
  • Material: 8620 AISI Steel
  • Finish: Mag-Phosphate
  • Compatibility: Standard AR15/M16 charging handles
  • Weight: 15.5 oz.


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 caters to single stage triggers with short resets.  It also allows use with the JP silent capture spring. This bolt is compatible with the Law Tactical folding stock and the Echo trigger.


  • Made in U.S.A.
  • Constructed from 8620 AISI steel.
  • Custom 4140 billet extractor providing superior ejection.
  • Glock cut.
  • Compatible with single stage short reset triggers.
  • Compatible with the Law Folding Tactical Stock
  • Compatible with the Echo trigger.
  • Compatible with the JP Silent capture spring


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All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.