The Sons Of Liberty Gun Works M4 89 Match is a semi-automatic rifle chambered in 6.5 Grendel with a 13.9-inch barrel, muzzle brake, and anodized black finish. It weighs 7.6 lbs and has a 26-round detachable magazine. 
 

Key Specifications 

• Manufacturer: Sons Of Liberty Gun Works 
• Model: M4 89 Match 
• Type: Modern Sporting Rifle 
• Caliber: 6.5 Grendel 
• Barrel Length: 13.9 inches 
• Capacity: 26 rounds (detachable magazine included) 
• Weight: 7.6 lbs 
• Finish: Anodized Black 
   

Detailed Features 

The 13.9-inch barrel is shorter than the standard M4-89's 18-inch, which reduces overall length and weight while trading some velocity. The muzzle brake keeps recoil and muzzle rise manageable, which is especially useful with the shorter gas system. Aluminum receiver and polymer stock construction keep the weight at 7.6 lbs. The 26-round magazine capacity is well-suited to competition or range use. 
 

Target Audience 

Competitors who want a compact 6.5 Grendel platform, shooters who want a shorter overall length for easier handling in confined positions, and those building a 6.5 Grendel SBR or pistol-length setup. 
 

Usage Scenarios 

The shorter 13.9-inch barrel makes the rifle more maneuverable in tight positions during competition stages. The 6.5 Grendel caliber retains reasonable long-range capability even from the shorter barrel. For hunting, the compact size helps in dense cover. The match designation and build quality make it a natural fit for shooters who want a short, accurate 6.5 Grendel platform.

The Sons of Liberty M4 89 Match 6.5 Grendel draws the kind of attention that SOLGW products typically do - high praise for construction quality and honest debate about value. Build quality is the most consistently positive theme. Owners describe the machining and finish as clearly quality work, and the brand's reputation for attention to detail carries into individual owner reports.

Accuracy gets strong marks. Owners report good groupings for a 13.9-inch barrel, and the 6.5 Grendel caliber is appreciated for maintaining useful long-range performance even from the shorter barrel.

The 6.5 Grendel caliber draws caliber-specific discussions. Some owners prefer it over .308 for the weight and recoil advantage; others compare the ammunition cost and availability against more common calibers unfavorably. Ergonomics and customization potential come up positively - the platform accepts standard AR accessories.

Price is a recurring topic. SOLGW rifles carry a premium that some owners accept without reservation given the quality, while others weigh it against other options in the same category. Customer service experiences are discussed with some variance.