The Aero Precision AR9 9mm Bolt Carrier Group is purpose-built for 9mm AR pistol-caliber carbine builds.
- Part Type: Bolt Carrier Group
- Compatible Firearms: AR-9 / 9mm AR pistol-caliber carbines
- Material: 8620 Steel
- Finish: Black Nitride
- Installation: Drop-In
- Includes: Bolt Carrier Group assembly
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