Due to the ATF pistol brace ruling, Jacob Grey will only ship pistols with a round tube. No braces will be sold.Learn More

$815.00

JG15 300 Blackout Complete Upper Assembly – 10.5″

Specifications:
Caliber: 300 Blackout
Barrel Length: 10.5″
Gas Seat: 0.750″
Gas Placement: Pistol-Length
Gas Block: Low profile JG Gas block
Twist Rate: 1:7
Barrel Material: CMV Alloy
Barrel Finish: QPQ Nitride
M4 Feed Ramps: Yes
Muzzle Thread Pattern: 5/8-24
Muzzle Device: JG 3-Stage Muzzle Brake
Upper Receiver Finish: Class III Type 2 Hard Coat Anodize
Charging Handle: JG Ambidextrous Charging Handle
Handguard: JG 10” M-LOK Handguard
Bolt Carrier Group: JG 300 Blk/5.56 NATO/.223 Rem Nitride BCG
Dust Cover: UTG Plastic Dust Cover

Description

When 300 Blackout hit the market, it took the AR-15 to a whole new level in the shooting arena. If you’re not already a fan of this cartridge, take it to the range, afterwards you will be. If you’re in the market for a complete upper assembly that performs in CQC/CQB and also doubles as an effective mid-range weapon, the Jacob Grey 10.5” 300 Blackout Complete Upper Assembly is just what you’re looking for.
Advantages:
The Jacob Grey barrel is designed with a thicker wall to better handle excess heat while minimizing barrel whip. The increased strength, hardness, and high-temperature stability of 4150 Chrome Moly Vanadium barrels are better suited for full-auto and rapid fire. Our complete uppers comes with a JG 10” M-LOK handguard giving you plenty of space for all the accessories you could want. The JG 3-Stage Muzzle Brake helps mitigate the recoil impulse and felt recoil.
**Disclaimer**
While the 300 Blackout round is common, the ammunition used greatly affects the performance of your Jacob Grey Upper Receiver. We test our upper receivers using 145gr subsonic ammunition, this may not be the round you prefer to shoot. Buffer weight and spring coil tension greatly affects your firearms performance. You may need to adjust buffer weight accordingly to suit your choice of round. H2 and H3 Buffers are commonly used with the 300 Blackout caliber. If unsure about your firearms performance seek help from a qualified gunsmith.

No attribute set

No attribute set

Standard Equipment

No standard equipment set

Related Accessories
Similar Firearms
JG ULTRALIGHT
JG ULTRALIGHT
The Jacob Grey Ultralight Rifle was designed with the next generation AR15 in mind. This AR15 rifle is built around the 7075-T6 billet lower receiver specifically machined and cut in areas where excess material was unnecessary and areas that see excess use and wear, reinforced and strengthened to give a sleek, refined look, without losing the classic lines of the AR15 platform. The same consideration was given to the matching billet upper receiver.
JG10
JG10
Full selection of Complete AR10 Rifles, Pistols, Receivers, & Builder Kits available. All individually crafted from billet aluminum to Mil-Spec standards.
JG15
JG15
Full selection of Complete AR15 Rifles, Pistols, Receivers, & Builder Kits available. All individually crafted from billet aluminum to meet Mil-Spec standards. Built to last a lifetime.
JG9
JG9
Full selection of Complete AR9 Rifles, Pistols, Receivers, & Builder Kits available. All individually crafted from billet aluminum to Mil-Spec standards.
SIMILAR FIREARMS
JG ULTRALIGHT
JG ULTRALIGHT
The Jacob Grey Ultralight Rifle was designed with the next generation AR15 in mind. This AR15 rifle is built around the 7075-T6 billet lower receiver specifically machined and cut in areas where excess material was unnecessary and areas that see excess use and wear, reinforced and strengthened to give a sleek, refined look, without losing the classic lines of the AR15 platform. The same consideration was given to the matching billet upper receiver.
JG10
JG10
Full selection of Complete AR10 Rifles, Pistols, Receivers, & Builder Kits available. All individually crafted from billet aluminum to Mil-Spec standards.
JG15
JG15
Full selection of Complete AR15 Rifles, Pistols, Receivers, & Builder Kits available. All individually crafted from billet aluminum to meet Mil-Spec standards. Built to last a lifetime.
JG9
JG9
Full selection of Complete AR9 Rifles, Pistols, Receivers, & Builder Kits available. All individually crafted from billet aluminum to Mil-Spec standards.