# Sons of Liberty M489 Tactical 5.56mm Rifle - 13.75" Barrel

**Brand:** Sons of Liberty Gun Works
**Category:** AR Style Rifles
**Caliber:** 5.56 NATO

## Specifications

- **Caliber:** 5.56 NATO
- **Barrel Length:** 13.75"
- **Finish:** Stock Finish: Black
- **UPC:** 644625080834
- **SKU:** UCBLdV918

## Description

The Sons of Liberty M489 is a 5.56x45mm AR-platform rifle with a 13.75" barrel. That barrel length puts it in SBR territory in most states, worth confirming compliance before purchase. The M489 ships with several components Sons of Liberty selected specifically for this build rather than the usual mil-spec defaults.

### Key Specifications
- **SKU:** 2024020735
- **UPC:** 644625080834
- **Condition:** New in Box
- **Finish:** Stock Finish: Black
- **Safety:** Ambi Quick Q
- **Trigger:** Liberty Fighting Trigger
- **Grip:** Standard
- **Stock:** B5 Bravo
- **Barrel Twist:** 1:7"
- **Barrel Length:** 13.75"
- **Caliber:** 5.56X45MM
- **MPN:** M48913.7XL
- **Model Name:** M489
- **Brand:** Sons of Liberty

### Detailed Features

The Liberty Fighting Trigger is a notable departure from mil-spec. It has a cleaner break and lighter pull, which helps with accuracy and faster splits on follow-up shots. The Ambi Quick Q safety works from either side, which matters if you shoot left-handed or regularly transition between hands.

The 1:7" twist rate handles heavier 5.56 projectiles well. The B5 Bravo stock adjusts for length of pull and is more rigid than most standard collapsibles. At 13.75", the barrel is short enough for tight spaces but still extracts reasonable velocity from 5.56.

### Usage Scenarios

The compact package suits home defense or any application where a full-length carbine is awkward. At the range, the trigger and ambi safety make it comfortable to run through drills. The 5.56 caliber and 1:7" twist give it flexibility across standard and heavier ammunition.

## Frequently Asked Questions

**Q: What caliber is the Sons of Liberty M489?**

A: The M489 is chambered in 5.56x45mm.

**Q: Who makes the M489?**

A: It is made by Sons of Liberty Gun Works.

**Q: What is the barrel length of the Sons of Liberty M489?**

A: The M489 has a 13.75-inch barrel.

**Q: What type of firearm is the Sons of Liberty M489?**

A: It is an AR-platform rifle chambered in 5.56x45mm.

**Q: What stock does the Sons of Liberty M489 come with?**

A: It ships with a B5 Bravo stock.

**Q: Where can I buy the Sons of Liberty M489?**

A: Compare current vendor offers on this page.

## What Customers Say

*AI-generated insights from customer reviews*

Sons of Liberty has a following among buyers who research their AR builds carefully, and the M489 feedback reflects that. Most owners knew what they were buying and chose it deliberately over budget alternatives.

Build quality and fit are consistently praised. The Liberty Fighting Trigger is a highlight for most owners; it's noticeably better than mil-spec out of the box and doesn't require an immediate replacement the way some factory triggers do. The ambi safety and B5 stock also get positive marks.

The price is the predictable friction point. Sons of Liberty rifles cost more than comparable-caliber ARs from higher-volume manufacturers, and some buyers feel the premium is steep. Others consider it fair given the component choices.

The 13.75" barrel divides opinion based purely on use case. Buyers who wanted that length are happy. Those who prefer longer barrels for velocity or legal simplicity sometimes wish they'd gone a different direction, though that's a pre-purchase decision, not a product quality issue.

Overall, the M489 has a positive reputation among owners who prioritized build quality over price.

## Pricing

**1 offers available**

| Vendor | Price |
|--------|-------|
| Impactguns Com | $1888.69 |

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*Data from [GunsNation](https://gunsnation.com)*