Lubricate and Reassemble the Glock Variant

What happens here

Once all Glock components are clean, apply a thin layer of gun oil (such as Shooter's Choice EWL) to all metal-to-metal friction points, including the exterior of the barrel, the recoil spring assembly, and the slide rails on both the slide and the frame. Reassemble the firearm in reverse order: insert the barrel into the slide, then the recoil spring assembly. Align the slide with the frame rails, push it rearward until it clicks into place. Perform a function check by pulling the slide back fully and letting it go, ensuring it cycles smoothly. Insert an empty magazine and check that the slide locks back properly.

Goal: Properly lubricate and reassemble the Glock variant.