---
product_id: 6077112
title: "Brownell Formula 44/40 Instant Gun Blue"
brand: "brownells"
price: "₨539"
currency: SCR
in_stock: true
reviews_count: 8
category: "Brownells"
url: https://www.desertcart.sc/products/6077112-brownell-formula-44-40-instant-gun-blue
store_origin: SC
region: Seychelles
---

# Instant action formula True deep blue finish Compact 2 fl oz liquid Brownell Formula 44/40 Instant Gun Blue

**Brand:** brownells
**Price:** ₨539
**Availability:** ✅ In Stock

## Summary

> 🔵 Elevate your firearm’s finish instantly—because your gear deserves legendary status.

## Quick Answers

- **What is this?** Brownell Formula 44/40 Instant Gun Blue by brownells
- **How much does it cost?** ₨539 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/6077112-brownell-formula-44-40-instant-gun-blue)

## Best For

- brownells enthusiasts

## Why This Product

- Trusted brownells brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Small 2 fl oz bottle packs a potent punch—ideal for on-the-go gunsmiths and hobbyists.
- • **Trusted by Experts:** 4.6-star rating from over 1,100 users proves it’s the go-to choice for serious gun care.
- • **Instant Rust Revival:** Transforms steel surfaces with lightning-fast blueing for that flawless, professional look.
- • **Hazardous but Worth It:** Non-returnable due to potency—because only the best results come with uncompromising quality.
- • **Precision Aging for Brass:** Perfectly ages brass components, adding authentic vintage character to your firearms.

## Overview

Brownell Formula 44/40 Instant Gun Blue is a highly rated, fast-acting liquid solution designed to restore and enhance steel firearm surfaces with a deep blue finish. Compact and trusted by over a thousand users, it also excels at aging brass for authentic vintage appeal. Its potent formula is non-returnable due to hazardous classification, underscoring its professional-grade strength.

## Description

desertcart.com : Brownell Formula 44/40 Instant Gun Blue : Sports & Outdoors

Review: Good stuff - This product flat works. Best I've found.
Review: Great for aging brass. - Excellent. I used it to age some brass on a flintlock rifle and it worked perfectly.

## Features

- non-returnable (hazardous)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00IYZBWC8 |
| Air Gun Power Type | Spring-Piston |
| Barrel Material Type | Aluminum |
| Best Sellers Rank | #34,030 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #148 in Gunsmithing Tools |
| Brand | Brownells |
| Brand Name | Brownells |
| Color | Blue |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,116) |
| Date First Available | March 12, 2014 |
| Frame Material | Plastic |
| Included Components | Formula 44/40 Instant Liquid Gun Blue for Steel |
| Item Dimensions LxWxH | 2.5 x 1 x 2.5 inches |
| Item Package Dimensions L x W x H | 3.82 x 1.3 x 1.26 inches |
| Item Weight | 0.06 Kilograms |
| Manufacturer | Formula 44/40 |
| Material | Liquid |
| Model Name | 082440002 |
| Package Weight | 0.08 Kilograms |
| Product Dimensions | 2.5"L x 1"W x 2.5"H |
| Size | 2 FL Oz |
| Suggested Users | unisex-adult |
| Team Name | Formula 44 |
| UPC | 762022610499 |
| Warranty Description | Manufacturer Warranty |

## Product Details

- **Air Gun Power Type:** Spring-Piston
- **Barrel Material Type:** Aluminum
- **Brand:** Brownells
- **Color:** Blue
- **Frame Material:** Plastic
- **Item Weight:** 0.06 Kilograms
- **Manufacturer:** Formula 44/40
- **Product Dimensions:** 2.5"L x 1"W x 2.5"H
- **Team Name:** Formula 44
- **UPC:** 762022610499

## Images

![Brownell Formula 44/40 Instant Gun Blue - Image 1](https://m.media-amazon.com/images/I/61yWo7zGRaL.jpg)

## Questions & Answers

**Q: why is the price of 4440 gun blue 2 times the price of buds gun shope.**
A: Because they will charge you $12 for shipping it.

**Q: I have a black powder 44 colt that I built from a kit and I want to blue all the metal. will this work on my gun?**
A: This product is the best of several "cold blue" products I have used, but mainly for touch up of small areas.  It will work best on large pieces if you heat them first with a hair dryer or heat gun.  Be sure all traces of oil, even your fingerprints, are removed from the metal before you apply 44/40.  Try a second application on small parts first before doing a second coat on the frame and barrel.  Since the cold blue is effect an oxidation, be sure to oil everything well when you are satisfied with the coverage.

**Q: Is this a liquid or a gel?**
A: 44/40 is a liquid.  It turns ferrous metals almost black instantly.  Takes only a little, so I apply it with a bit of paper towel, sometimes Q-tips.  Very satisfying.

**Q: Is there enough to do a shotgun barrel?**
A: It depends on how well you prep the barrel.  I used it on a front sight base where I ground off the sling swivel in conjunction with installing a free float tube.  The color wasn't very deep so I did a few coatings.  Could be my technique or the cast material of the base.  A steel barrel might have a better result.   Rock River Arms called this product out in its free float tube instructions.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good stuff
*by D***R on December 16, 2025*

This product flat works. Best I've found.

### ⭐⭐⭐⭐⭐ Great for aging brass.
*by M***E on February 28, 2025*

Excellent. I used it to age some brass on a flintlock rifle and it worked perfectly.

### ⭐⭐⭐⭐ Good touchup blue for small areas…
*by G***O on October 7, 2025*

This is a good product for small touch ups…not good for larger areas in my experience. I build 1911 pistols as a hobby and find this works well for areas I’ve filed to fit. For larger areas the Creme version is much preferred.

## Frequently Bought Together

- Brownell Formula 44/40 Instant Gun Blue
- Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL)
- Homax 10120000 Steel Wool, 12 pad, Grade #0000, Rhodes American, Final Finish

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**Shop now:** [https://www.desertcart.sc/products/6077112-brownell-formula-44-40-instant-gun-blue](https://www.desertcart.sc/products/6077112-brownell-formula-44-40-instant-gun-blue)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-17*