9MM AR15 PARTS AR9 UPPERS AR9 LOWERS 9MM BCG

Oct 7, 2018

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AR9 9MM AR15

When this site first started 9mm chambered AR15 parts and accessory suppliers were very limited. Today it’s a different world. There are enough 9mm options to warrant a dedicated section on this website.

Below are links to specific AR9 9MM AR15 categories

CMMG M4 LE 9MM AR15 UPPER RECEIVER

This complete CMMG AR-15 M4 LE Upper Assembly features a chrome-moly steel barrel with a WASP Melonite treated bore and exterior. The upper makes use of a ramped, 9mm specific bolt that enables the use of a standard AR-15 hammer (dedicated 9mm hammers are not compatible), and comes complete with a shortened ejection port/ejection port cover and large polymer brass deflector. Upper must be installed on a lower receiver compatible with, or modified to accept, Colt-Style 9mm Luger box magazines.

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