Home / NFA Products / Sons of Liberty Gun Works / Sons of Liberty Gun Works M4-L89 5.56mm 14.5" Bbl Mid Gas L89 Rail A2 FH Anodized Black M4-L89 Complete SBR (NFA) M4-L89-556-145-SBR-A-BLK
Sons of Liberty Gun Works M4-L89 5.56mm 14.5" Bbl Mid Gas L89 Rail A2 FH Anodized Black M4-L89 Complete SBR (NFA) M4-L89-556-145-SBR-A-BLK
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MSRP
$1,999
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Updated
Aug 26, 2026
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1 Magazine
13.75 SOLGW L89 Handguard"
9-Position A5 Receiver Extension
Ambidextrous Safety
Individually Built and Test-Fired by SOLGW
Liberty 2-Stage Trigger
SOLGW Forged Receiver Set
SOLGW Liberty Charging Handle
Specifications
Caliber
Model
M4-L89
MPN
M4-L89-556-145-SBR-A-BLK
UPC
657628674054
Description
The Sons of Liberty Gun Works M4-L89 is a premier, duty-ready Short Barreled Rifle (SBR) designed for maximum reliability and hard-use performance. This specific 14.5-inch configuration features the L89 Drivelock handguard, which utilizes a three-point locking system to ensure minimal point-of-impact shift for rail-mounted lasers and optics. Built with SOLGW's signature attention to detail, the rifle includes a combat-grade barrel, the versatile A5 buffer system for smoother cycling across various 5.56 loads, and fully ambidextrous controls to accommodate any operator. As a complete SBR, this model falls under the National Firearms Act (NFA) and requires a Form 4 transfer. Sons of Liberty Gun Works M4-L89 5.56mm 14.5" Bbl Mid Gas L89 Rail A2 FH Anodized Black M4-L89 Complete SBR (NFA) M4-L89-556-145-SBR-A-BLK
