Before

Steel firearm pistol slide after automated deburring and surface preparation, with softened edges and uniform surface finish.
Close-up of CNC-machined firearm pistol slide surface showing visible machining marks prior to deburring and surface conditioning.

After

Steel firearm pistol slide after automated deburring and surface preparation, with softened edges and uniform surface finish.
Close-up of firearm pistol slide surface after automated deburring, showing reduced machining marks and improved surface uniformity.

Objective

Reduce manual finishing time for CNC-machined steel pistol slides by removing machining marks and burrs while increasing production throughput.

Part DescriptionFirearm Pistol Slide
IndustryFirearms/Weaponry, Machine Shop Applications
Fabrication MethodCNC Machined
Material416 Steel Alloy
Process TypeDeburring, Wet Grinding, Slurry Glass Bead, Surface Preparation
Equipment TypeDrag Finisher, Centrifugal Barrel Finisher/Harperizer, Centrifugal Disc Finisher

Solution

Bel Air developed an automated finishing process to deburr and condition CNC-machined steel pistol slides that previously required extensive manual edge work. The objective was to remove machining marks, soften sharp edges, and improve surface uniformity without affecting critical dimensions or functional features.

Using controlled mass finishing methods, the process uniformly refined slide surfaces and internal features across complex geometries. This approach effectively removed burrs and machining artifacts while preparing the surface for downstream finishing or coating operations.

The optimized workflow significantly reduced manual labor and rework while increasing throughput, making it well suited for firearms manufacturing environments where consistency, part function, and production efficiency are critical.

If you are unsure what equipment and media you require to achieve your desired surface finish, then send us your part, and we will evaluate it and provide you with a metrology report.