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BG 4.5" 9mm Upper Receiver -Black | FLASH CAN | 5.5" M-LOK Slant Cut | Without BCG & CH

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Product Code: BGBU-459MM55FC-BLK
MSRP: $366.95
Sale Price: Sale Price: $177.95
$177.95
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Out of stock

Builder's Grade Barreled 4.5" 9mm Upper Receiver | FLASH CAN | 5.5" M-LOK Slant Cut | Without Bolt Carrier Group and Charging Handle

NO BCG OR CHARGING HANDLE INCLUDED

Click here for Charging Handles

Click here for Bolt Carrier Groups

This Barreled 4.5 inch M-LOK upper receiver comes with a 5.5 inch free-float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 M4 barrel.


Barrel
Specifications
Caliber 9mm
Length 4.5
Material 4150 Chrome Moly Vanadium
Profile Straight
Finish QPQ Corrosion Resistant
Gas System Length None
Gas Block Journal N/A
Dimpled? No
Twist Rate 1:10
Muzzle Thread 1/2x36 TPI
Weight 8.3oz
Barrel Extension Integrated
Target Crown 11 Degree


Upper Receiver:

This .22LR / 9mm upper receiver assembly is made from forged 7075-T6 aluminum and is Hard Coat Anodized. It meets military specifications and comes in a true slick side configuration. The ejection port door is sized for 9mm and 22LR. This upper does not have a shell deflector, nor does it have a forward assist.

  • Machined from a Mil-Spec 7075 T6 Forging
  • Black Anodization


Handguard:

  • 5.5" free-float handguard
  • MIL-STD 1913 Picatinny rail on top
  • 2 M-Lok slots on 3 sides
  • Precision Machined aircraft grade aluminum, for high strength and weight savings
  • Clamp-on system for easy assembly
  • Steel Barrel nut to resist movement under heat
  • Made in the USA
***Please allow an additional 2-3 business days of lead time as these uppers are made to order.***
SKU:
BGBU-459MM55FC-BLK