Jacob Grey Firearms Ultralight 300 BO Complete Upper Assembly
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Jacob Grey Ultralight 300 BO Complete Upper Assembly
- Built around a billet 7075-T6 aerospace aluminum upper receiver
- Free-Float 7-sided M-LOK handguard for lightweight setup and accessory mounting
- Caliber: .300 AAC Blackout
- Barrel: 4150 Chrome Moly steel, Nitride finish, 1:8 twist, 5/8x24 threads
- Gas System: Pistol Length
- Muzzle Device: Brake
- Bolt Carrier Group: MIL-SPEC 8620 steel carrier with Nitride finish
- Operates with MIL-SPEC AR upper receiver parts
- Finish: Typ...
Specifications
- Manufacturer:
- Jacob Grey Firearms
- Category:
- upper-receiver
- Platforms:
- AR-15
- Weight:
- 7.7 oz
- Length:
- 20.0" - 25.5"
- UPC:
- 850040696042
- MPN:
- 300BO16ULCUA
- Required Component:
- Yes
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