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NOTE: Gunsmithing Services are invasive and will most often (directly with tooling or indirectly with work holding) damage existing surface finishes on parts such as receivers. LRI offers a full menu of finish options for your components, please ensure you have also added an appropriate finish option to your cart if applicable.

Finish Options

Cerakote (most popular)
Parkerize Carbon Steel Action
Parkerize Carbon Steel Bolt
Glass Bead Stainless

Copy of GUNSMITHING SERVICES: Colt/1911 "Brass Check" for front slide

  • $ 12500

NOTE:  This is a service-only listing.  The client is responsible to provide the pistol slide, sight, adapter plate (when applicable), and all required hardware.


The power of state-of-the-art CAD/CAM software and 5 axis machining is brought to bear for this popular upgrade.  Flexible models with accurate relevant features ensure a clean and functional outcome.


Colt 1911 MK IV Series slide and toolpaths modeled in SolidWorks

Slide show in process on LRI's industry exclusive UMC750 5 axis machining center.

10x check cuts sloped at 15*


Important information regarding additional options:

Since conception, LRI has made the conscious effort to be the most transparent and straightforward custom gun service center in existence.  

Pistol work is new to us and no one here makes any claim to being an expert in regards to the application or part selection.  You as the client MUST do your homework and know exactly what it is your want because we simply do not have the experience or "tribal knowledge" to be of assistance.  

What we are extremely good at is high-caliber machine work using the most modern processes available to the custom firearms industry.  This is where we shine and are able to help.

We are happy to take on new applications for this type of work.  Just know that when you call, YOU are directing the show.  We'll handle the machine work, but you must know what you are doing and be able to accurately articulate the details.


We look forward to being part of your project.

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