Sons of Liberty M4-89 AR-15 5.56 NATO 14.5" Semi-Auto Rifle
The Sons of Liberty M4-89 AR-15 5.56 NATO 14.5" Semi-Auto Rifle is a 5.56 NATO ar style rifles from Sons of Liberty Gun Works.
Product Information
Name: Sons of Liberty M4-89 AR-15 5.56 NATO 14.5" Semi-Auto Rifle
Brand: Sons of Liberty Gun Works
Category: AR Style Rifles
Caliber: 5.56 NATO
Barrel Length: 14.5"
Capacity: 30 rounds
UPC: 785939518849
SKU: UCDpt47oP
Description
The Sons of Liberty Gun Works M4-89 is a semi-automatic rifle chambered in 5.56x45mm NATO / .223 Remington with a 14.5-inch pinned barrel (16 inches overall), 30-round capacity, and black hard coat anodized finish. It weighs 6.75 lbs without a magazine and 12.16 lbs fully configured. The rifle ships optic-ready with no iron sights and includes three magazines.
Key Specifications
- Manufacturer: Sons of Liberty Gun Works
- Model: M4-89
- Action Type: Semi-Automatic
- Caliber: 5.56x45mm NATO / .223 Remington
- Barrel Length: 14.5 inches (16" overall length)
- Capacity: 30 rounds
- Weight: 12.16 lbs (6.75 lbs without magazine)
- Finish: Black Hard Coat Anodized
- Sights: None (Optic Ready)
- Trigger Type: Standard
Detailed Features
The 14.5-inch barrel is pinned and welded to reach the legal 16-inch overall length. A 1:7 twist rate stabilizes heavier 5.56 projectiles effectively. A NOX muzzle device reduces recoil and muzzle rise. The lightweight aluminum receiver keeps the base weight at 6.75 lbs. The optic-ready platform has no fixed sights, leaving the top rail open for whatever sighting system the owner chooses. Three magazines ship in the box.
Complete Specifications
| Caliber | 5.56 NATO |
| Model | M4 89 |
| Capacity | 30 rounds |
| Magazines included | 0 |
| Barrel length | 14.5" |
| Overall length | 33.5" |
| Weight | 108 oz |
| Action | Semi Auto |
| Finish | Barrel Extension: QPQ coated M4 Feed Ramp Extension |
| Frame material | Polymer |
| Color | Black |
| Stock material | Polymer |
| Sights | None, Optic Ready |
Frequently Asked Questions
What caliber is the Sons of Liberty M4 89?
The Sons of Liberty Gun Works M4-89 is chambered in 5.56x45mm NATO / .223 Remington.
Who makes the M4 89?
The M4-89 is made by Sons of Liberty Gun Works.
What type of firearm is the Sons of Liberty M4-89?
It is a semi-automatic AR style rifle.
What is the barrel length of the Sons of Liberty M4-89?
It has a 14.5-inch pinned barrel, reaching 16 inches overall.
How many rounds does the Sons of Liberty M4-89 hold?
It has a 30-round capacity.
Is the Sons of Liberty M4-89 optic-ready?
Yes, it ships with no iron sights and an open top rail, ready for the owner's choice of optic.
Where can I buy the Sons of Liberty M4-89?
Compare current vendor offers on this page.
What Reviewers Say
Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.
This handguard on here is more durable and let's say rigid than all the other ones on the market it is Flatout bomb proof it's extremely stiff it's rigid.
It shoots fantastic it's been 100% reliable with zero issues and zero cleaning.
It is a more crisp brake there's no creep in it whatsoever and it breaks crisp and clean it has a very Audible and tactile reset.
There is absolutely no wobble in this thing whatsoever it's fit perfectly.
Customers Say
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
The M4-89 with 14.5-inch barrel draws consistent positive feedback for build quality and reliability. Owners report smooth cycling across ammunition types and steady accuracy at range distances appropriate for the 5.56 caliber.
Ergonomics are well-regarded, and the rifle's compatibility with the full AR-15 accessory ecosystem is a practical plus for owners who customize their setup.
Price is the most frequent discussion point. SOLGW charges a premium over budget AR-15s, and the value-versus-cost debate appears in most comment threads. Buyers who prioritize American manufacturing and quality build processes tend to find the price fair; those evaluating purely on accuracy-per-dollar note that alternatives exist. Customer service experiences are mixed, with some owners reporting smooth warranty interactions and others describing slower resolution times.
