Home / Gun Parts / Sons Of Liberty Gun Works / Sons of Liberty Gun Works M4-L89 5.56mm 14.5" Bbl Mid Gas L89 Rail P&W Plan BFH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-145-PB
Sons of Liberty Gun Works M4-L89 5.56mm 14.5" Bbl Mid Gas L89 Rail P&W Plan BFH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-145-PB

Sons of Liberty Gun Works M4-L89 5.56mm 14.5" Bbl Mid Gas L89 Rail P&W Plan BFH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-145-PB

Lowest Price
MSRP
$1,050
Savings
6% off
In Stock at
5 Stores
13.75 L89 Handguard"
14.5 5.56 NATO Barrel"
7-Sided M-LOK Slots
Drivelock Barrel Nut System
Integral QD's at Barrel Nut on Both Sides
Plan B Flash Hider

Specifications

Caliber
MPN
U-M4L89-556-145-PB
UPC
657628673033

Description

Sons of Liberty Gun Works M4-L89 5.56mm 14.5" Bbl Mid Gas L89 Rail P&W Plan BFH Liberty Fighting Bbl & Mil-Spec Upper Receiver U-M4L89-556-145-PB
Stay Connected

Join our newsletter for the latest updates and exclusive deals.

ARMSAGORA

Compare prices on firearms, ammunition, and accessories from hundreds of trusted retailers. Find the best deals, track prices, and build your own loadouts.

© 2026 ARMSAGORA. All rights reserved.
Not an FFL licensed dealer. ARMSAGORA is a product comparison tool.