Jacob Grey Logo

You must be 18 years of age or older to enter this website.


JG9 9mm Complete Upper Assembly – 16″




Made in the USA

7075-T6 Mil-spec Upper Receiver

1:10 Twist Rate

1/2×28 Thread Pattern

15″ Jacob Grey 7-sided M-Lok Hand guard

Knurled JG 6 Point Directional Compensator

9mm Bolt Carrier Group and Charging handle Included

Class III Type 2 Hard coat anodized finish

9mm Specific Upper receiver with reduced ejection port for smaller rounds

Jacob Grey’s unique checkering design specific to the JG-9 platform

Designed to match lines with Jacob Grey JG-9 & JG-15 Billet Lower however will fit with any Mil-spec lower receiver.

Contains integrated Last Round Bolt Hold Open (LRBHO) technology that reliably holds the bolt open when magazine is empty

LRBHO feature is designed for lowers that accept Glock style magazines


Share With Your Friends:



9mm JG-9 upper receiver with 15″ mlok hand guard, 9mm bolt carrier group, JG 9mm 16” 4150 chrome moly vanadium steel barrel, JG ambidextrous charging handle and JG knurled 6 point directional compensator included


**NOTE:  Some rail systems that use anti-rotation tabs may need slight modification to fit this upper.  It is designed for flush mounting rails and standard hand guards.



There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Other Products You Must Have


Go to Top