Sons of Liberty Gun Works
Sons of Liberty Gun Works (SOLGW) builds complete AR-15 rifles and the parts to build your own, with a reputation for over-built reliability rather than the lightest or cheapest option on the shelf. The Scalper is SOLGW's core semi-auto AR-15 line, available as a complete rifle or as receiver sets and small parts for a custom build. The Broadsword M89 pairs SOLGW's handguard system with the 6mm ARC cartridge for a purpose-built precision platform, and the SAGE Dynamics L89 is a collaboration rifle built around SOLGW's Broadsword rail system.
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What Sons of Liberty Gun Works Is Known For
SOLGW builds AR-15 rifles and parts around a simple philosophy: over-build the parts that fail on cheaper rifles — bolt carrier groups, gas systems, handguard attachment — rather than chase the lightest possible weight. The result is a lineup of complete rifles and small parts aimed at shooters who want a rifle built to run hard, not just look good on a range day.
Scalper: SOLGW's Core AR-15 Line
The Scalper is SOLGW's semi-auto AR-15 platform in 5.56 NATO, sold as a complete rifle, a receiver set, or a stripped lower alone in black, flat dark earth, and olive drab green finishes. It's the rifle most builders mean when they say "SOLGW" without specifying a model.
Broadsword M89: SOLGW's 6mm ARC Platform
The Broadsword M89 pairs SOLGW's Broadsword M-Lok handguard system with the 6mm ARC cartridge for flatter long-range trajectories than 5.56 NATO, available in 14.5" pinned and 16" barrel configurations as well as an SBR variant for NFA-registered builds.
SAGE Dynamics L89: A Collaboration Rifle
The SAGE Dynamics L89 is a collaboration between SOLGW and firearms instructor Aaron Cowan (SAGE Dynamics), built on SOLGW's Broadsword rail system in 5.56 NATO with a 13.7" pinned barrel. It reflects Cowan's training-focused input on handguard length, furniture, and overall balance for a rifle meant to be run hard in classes, not just at the bench.
SOLGW Triggers and Small Parts
The Liberty Fighting Trigger is SOLGW's two-stage trigger upgrade, and the catalog also includes bolt carrier groups, gas blocks, ambidextrous safety selectors, and charging handles — all sold individually for builders assembling a rifle from parts rather than buying complete.
Frequently Asked Questions
What's the difference between the Scalper and Broadsword M89?
The Scalper is SOLGW's standard 5.56 NATO AR-15 line; the Broadsword M89 is a dedicated 6mm ARC platform built for flatter long-range trajectories.
Is the Broadsword M89 SBR available without NFA paperwork?
No — the SBR variant is a short-barreled rifle and requires ATF Form 1 or Form 4 registration like any other SBR.
What is the SAGE Dynamics L89?
A collaboration rifle between SOLGW and firearms instructor Aaron Cowan, built on SOLGW's Broadsword rail system and tuned for training-class use.
Can I build a complete rifle from SOLGW parts alone?
Yes — between Scalper receiver sets, bolt carrier groups, gas blocks, and lower parts kits, SOLGW sells enough components to build a complete AR-15.
Browse our full AR-15 Rifles, AR-15 Upper Receiver Parts, and AR-15 Lower Receiver Parts selections for more options from other brands.