Home / AR Parts / Sons Of Liberty Gun Works / Sons of Liberty Gun Works AR-15 L89 Broadsword Upper Receiver Assembly 5.56x45mm 14.5" Cold Hammer Forged Barrel 13.75" L89 M-LOK Rail
▼ 9% below avg
Sons of Liberty Gun Works AR-15 L89 Broadsword Upper Receiver Assembly 5.56x45mm 14.5" Cold Hammer Forged Barrel 13.75" L89 M-LOK Rail
Lowest Price
$1,009.99
MSRP
$1,306.25
Savings
23% off
In Stock at
1 Stores
Updated
Mar 26, 2026
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Specifications
Description
These Sons of Liberty Gun Works L89 Upper Receiver Groups are built using BROADSWORD-89 uppers for that near monolithic fit, reduced rail deflection, and maximum precision - just with a more modest weight barrel in them than the Precision series. These uppers have Cold Hammer Forged V2 Button rifled barrels, V2 4140 gas block, and offered in a variety of length and muzzle device options. L89 rails have 7-sided MLOK, and integral QD's for maximum available MLOK utilization, and are installed over a Titanium barrel nut. FeaturesCold Hammer Forged BarrelM-LOK RailTitanium Barrel Nut
