Gunsmithing

Caustic Bluing
We offer professional caustic bluing — also known as hot salt bluing — for restoring and protecting firearms with a classic, deep black finish. This traditional process is still considered one of the most durable and beautiful finishes available.
Our bluing process involves careful surface prep, polishing, degreasing, and immersion in a hot chemical bath that chemically converts the metal’s surface. The result? A corrosion-resistant, wear-resistant black oxide finish that enhances the firearm’s value and extends its life.
Whether you’re restoring an heirloom shotgun, a vintage revolver, or simply want to refinish your hunting rifle, we treat every firearm with precision and respect. Unlike many modern coating shops, we still believe in the timeless results that only caustic bluing can deliver.
Serving the San Luis Valley and surrounding areas, we’re one of the few shops in Colorado that still offers this service in-house.
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Barrel Threading
Precision threading for muzzle device installation, ensuring alignment and performance.
We offer professional barrel threading and muzzle device installation for optimal performance and suppressor compatibility. Every cut is made with precision tooling to ensure perfect concentricity.
Long Description
Whether you’re attaching a suppressor, flash hider, or muzzle brake, proper barrel threading is critical. At Valley Gun Service, we use precision lathes and professional-grade tooling to ensure every thread is cut to spec. We also install muzzle devices with proper timing and torque, ensuring reliability, accuracy, and optimal performance. From AR platforms to bolt actions, our threading service guarantees a clean fit every time.
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Ultrasonic Cleaning
Deep-clean your firearms with our professional ultrasonic cleaning system.
We offer ultrasonic gun cleaning to remove carbon, fouling, and buildup from your firearm’s internals and hard-to-reach places. Ideal for heavily used or inherited firearms.
Our ultrasonic gun cleaning service uses advanced vibration and cleaning solutions to strip carbon, lead, and grime from every crevice of your firearm. This non-invasive process cleans better than brushes or wipes alone and is safe for most metal components. Perfect for well-used guns, inherited pieces, or just a deep seasonal clean, our ultrasonic service ensures your firearm is spotless inside and out — and ready to perform at its best.
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Custom Builds
Custom rifle builds tailored to your exact needs and style.
From long-range precision rifles to hunting or tactical builds, we craft complete rifles using premium components and gunsmithing excellence.
Every shooter is different — and your rifle should reflect that. At Valley Gun Service, we design and build custom rifles from the ground up, tailored to your intended use, preferences, and budget. We’ll help you select premium actions, barrels, stocks, and triggers, and we’ll fit, chamber, and test every component to ensure top-tier accuracy and reliability. Whether it’s for the backcountry, the bench, or the battlefield, we’ll build the rifle you’ve always wanted.
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Laser Engraving
ATF-compliant NFA laser engraving for SBRs, suppressors, and more.
We offer deep, precise laser engraving that meets or exceeds ATF requirements for your NFA items. Clean, legible, and permanent.
If you’re building or registering an NFA firearm like an SBR or suppressor, proper engraving is required by law. We offer laser engraving services that meet ATF depth and visibility standards — typically 0.003” deep in a discreet, professional finish. Whether it’s your trust name, serial number, or city/state, we’ll ensure your engraving is permanent, compliant, and clean.
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Rebarreling Rifles
Our rebarreling service gives new life to rifles with worn-out or damaged barrels.
Whether you’re upgrading for better accuracy, changing calibers, or restoring a vintage rifle, we’ll precisely remove the old barrel and install a new one using professional-grade tools and techniques.
Each job is custom-fit to ensure safe operation and optimal performance. Ideal for hunters, competitors, and collectors looking to bring out the best in their rifle.
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Firearm Restoration / Repair
Whether it’s a broken part, years of neglect, or a family heirloom in need of love, our firearm restoration and repair service brings guns back to safe, functional, and beautiful condition.
From mechanical fixes and part replacements to rust removal, stock refinishing, and cosmetic touch-ups, we handle it all with precision and care.
Every job is treated with respect, whether it’s for personal use, display, or sentimental value.
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Trigger Jobs
A good trigger makes a great difference.
Our trigger job service includes polishing engagement surfaces, adjusting pull weight, shortening reset, and ensuring crisp, clean breaks — all tailored to your preferences and firearm use.
Whether you’re improving accuracy for hunting or looking for speed and control in competition, a professional trigger job can transform the way your gun handles.
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Mounting & Bore Sighting Scopes
Precision begins with a properly mounted optic.
Our scope mounting and bore sighting service ensures your scope is installed level, torqued to spec, and aligned with your barrel.
We use professional-grade bore sighting tools to get you close to zero, saving time and ammo at the range.
Whether it’s a hunting rifle or a long-range setup, we’ll make sure your optic is ready to perform.
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Cerakoting (Coming Soon)
Cerakoting is one of the most durable and attractive firearm finishes available, offering protection from corrosion, abrasion, and wear — all while giving your gun a completely custom look.
At Valley Gun Service, we’ll soon be providing full Cerakote services, including disassembly, surface prep, application, and curing, all done in-house with precision and care.
Whether you want a rugged monochrome or a bold, personalized design, our Cerakote service will deliver protection and style that lasts.
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Additonal Services
Valley Gun Service offers a full range of precision gunsmithing services. Whether you need repairs, custom work, or upgrades, our team is equipped to get it done right.
- Jewel Bolt – Adds a custom jeweled finish to your bolt for a classic, polished appearance.
- Install Barrel on Action – Professionally fits and headspaces a new barrel to your rifle action.
- Remove Stuck Case – Safely extracts jammed brass from your chamber without damage.
- Chamber Cast – Creates an exact mold of your firearm’s chamber for identifying or diagnosing.
- Drill & Tap Scope Base – Drills and threads your receiver for secure optic base installation.
- Cut Dove Tails – Machines precise dovetails for fitting front or rear iron sights.
- Install Shotgun Beads – Installs or replaces bead sights on shotgun barrels for better targeting.
- Polish Chamber – Smooths the chamber to improve feeding, extraction, and reduce fouling.
- Resolder Forend Lug – Repairs and reattaches loose lugs on break-action shotgun forends.
- Bed & Float Stock – Glass beds the action and floats the barrel for improved accuracy.
- Pillar Bedding – Installs aluminum pillars to prevent stock compression and torque shift.
- Install Recoil Pad – Fits a new recoil pad to reduce felt recoil and improve shooter comfort.
- Custom Requests Welcome – Have something specific in mind? We’re happy to discuss unique projects, specialized repairs, or one-off gunsmithing needs.