---
product_id: 6077112
title: "Brownell Formula 44/40 Instant Gun Blue"
brand: "brownells"
price: "€ 30.12"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/6077112-brownell-formula-44-40-instant-gun-blue
store_origin: ES
region: Spain
---

# Instant action formula Deep, lasting blue finish Compact 2 FL Oz liquid bottle Brownell Formula 44/40 Instant Gun Blue

**Brand:** brownells
**Price:** € 30.12
**Availability:** ✅ In Stock

## Summary

> 🔵 Elevate your firearm’s finish instantly — don’t just clean it, transform it!

## Quick Answers

- **What is this?** Brownell Formula 44/40 Instant Gun Blue by brownells
- **How much does it cost?** € 30.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/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 & Portable:** Small, lightweight packaging fits easily in your gun care kit for on-the-go touch-ups.
- • **Trusted Brand Legacy:** From Brownells, a name synonymous with quality gun care and maintenance products.
- • **Precision Application:** Compact 2 FL Oz bottle designed for controlled, mess-free use on firearms and steel parts.
- • **Durable Steel Protection:** Enhances corrosion resistance while delivering a rich, uniform blue that lasts.
- • **Instant Blue Transformation:** Achieve a professional steel-blue finish in seconds with Formula 44/40’s rapid-acting formula.

## Overview

Brownell Formula 44/40 Instant Gun Blue is a fast-acting liquid solution designed to provide a deep, durable blue finish on steel firearm parts. Packaged in a compact 2 FL Oz bottle, it offers precision application and corrosion protection, making it an essential for professional-grade gun maintenance.

## Description

Brownell Formula 44/40 Instant Gun Blue

## Features

- non-returnable (hazardous)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Brownells |
| Color | Blue |
| Product Dimensions | 2.5"L x 1"W x 2.5"H |
| Item Weight | 0.06 Kilograms |
| Team Name | Formula 44 |
| Air Gun Power Type | Spring-Piston |
| Barrel Material Type | Aluminum |
| Frame Material | Plastic |
| UPC | 762022610499 |
| Manufacturer | Formula 44/40 |
| Model Name | 082440002 |
| Item Package Dimensions L x W x H | 3.82 x 1.3 x 1.26 inches |
| Package Weight | 0.08 Kilograms |
| Item Dimensions  LxWxH | 2.5 x 1 x 2.5 inches |
| Brand Name | Brownells |
| Warranty Description | Manufacturer Warranty |
| Material | Liquid |
| Suggested Users | unisex-adult |
| Included Components | Formula 44/40 Instant Liquid Gun Blue for Steel |
| Size | 2 FL Oz |

## Product Details

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

## 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.

## 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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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-28*