Home / Gun Parts / Sons Of Liberty Gun Works / SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas No MuzzleDevc

SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas No MuzzleDevc

Name: SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas No MuzzleDevc
Brand: Sons Of Liberty Gun Works
SKU: upc:657628673040

Lowest Price

MSRP

$950

Savings

7% off

Verified In Stock at

4 Stores

Updated

Aug 26, 2026

Compare Deals from 5 Retailers

Verified availability, then price

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

No Muzzle Device

Specifications

Caliber

556NATO

Brand

Sons Of Liberty Gun Works

Model

M4-L89 Upper Receiver Group

MPN

U-M4L89-556-145-NMD

UPC

657628673040

Description

SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas No MuzzleDevc

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SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas No MuzzleDevc

Specifications

Description

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