why is the price of 4440 gun blue 2 times the price of buds gun shope.

Because they will charge you $12 for shipping it.

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?

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.

Is this a liquid or a gel?

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.

Is there enough to do a shotgun barrel?

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.

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Brownell Formula 44/40 Instant Gun Blue

Product ID: 6077112

Details

Air Gun Power Type
Spring-Piston
Barrel Material Type
Aluminum
Brand
Brownells
Color
Blue
Frame Material
Plastic
Item Weight
0.06 kg

⚡Instant action formula

🔵Deep, lasting blue finish

🛠️Precision steel treatment

A$30

Duties & taxes included

In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔵 Elevate your firearm care with instant, flawless blue perfection!

TRUSTED BY GUNSMITHS - Ranked #187 in gunsmithing tools, a go-to for precision firearm care.
COMPACT LIGHTWEIGHT - Portable 2.5" x 1" x 2.5" bottle weighing just 0.06 kg—perfect for on-the-go maintenance.
HIGH CUSTOMER SATISFACTION - Rated 4.6/5 by over 1,100 users who demand quality and reliability.
INSTANT BLUE TRANSFORMATION - Achieve a professional-grade, deep blue finish on steel surfaces in moments.
MANUFACTURER BACKED QUALITY - Formula 44/40’s trusted formula with warranty support ensures peace of mind.

Brownell Formula 44/40 Instant Gun Blue is a compact, high-performance liquid solution designed for rapid and durable bluing of steel firearm parts. Trusted by professionals and ranked among top gunsmithing tools, it delivers a deep, corrosion-resistant finish that enhances both aesthetics and longevity.

Specifications

ASIN	B00IYZBWC8
Air Gun Power Type	Spring-Piston
Barrel Material Type	Aluminum
Best Sellers Rank	#53,575 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #187 in Gunsmithing Tools
Brand Name	Brownells
Color	Blue
Customer Reviews	4.6 4.6 out of 5 stars (1,139)
Frame Material Type	Plastic
Included Components	Formula 44/40 Instant Liquid Gun Blue for Steel
Item Dimensions L x W x H	2.5"L x 1"W x 2.5"H
Item Type Name	Gun Cleaning Kit
Item Weight	0.06 kg
Manufacturer	Formula 44/40
Model Name	082440002
Team Name	Formula 44
UPC	762022610499
Warranty Description	Manufacturer Warranty

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TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

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