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Home / Gun Parts / Sons Of Liberty Gun Works / SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas P/W ASR FH
SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas P/W ASR FH

SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas P/W ASR FH

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Page 1 of 2
13.75 L89 Handguard"
14.5 5.56 NATO Barrel"
7-Sided M-LOK Slots
ASR Flash Hider
Drivelock Barrel Nut System
Integral QD's at Barrel Nut on Both Sides

Specifications

Caliber
5.56 NATO
Brand
Sons Of Liberty Gun Works
Model
M4-L89 Upper Receiver Group
MPN
U-M4L89-556-145-ASR
UPC
657628673026

Description

SONS OF LIBERTY GUN WORKS M4-L89 Upper Recvr 5.56 14.5" MidGas P/W ASR FH

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