9mm BCG
CMMG MK9 Bolt Carrier Group 9mm AR-15 Steel Matte

CMMG MK9 Bolt Carrier Group 9mm AR-15 Steel Matte


Product Information
Finish: Matte
Material: Steel
Compatible With: AR-15
Delivery Information
Shipping Weight: 1.060 Pounds

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9mm BCG Overview

Completely assembled Steel AR-15 Bolt Carrier Assembly in 9mm(9mm BCG ). Ready to drop in to any AR-15 upper receiver.  Compatible with Glock and Colt style magazines.

What is a BCG(9mm BCG )?

This fully assembled TRYBE Defense 9mm Hybrid Bolt Carrier Group was built specially for 9mm AR-15 Carbines and works with both Glock and Colt style lower receivers. This BCG includes the bolt, bolt carrier, gas key, firing pin, cam pin, and firing pin retaining pin.

Is BCG a specific caliber?

They are designed for use in the AR-10 and LR-308 style rifle for calibers in the . 308 family and above. Pistol Caliber / Blowback – A pistol caliber or the blowback  is one that is built to be used in an AR build chambered for a pistol caliber round such as 9mm or 45 ACP



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