Glock G20 Gen3 10mm — Custom KKM Precision 6-Inch Stainless Long Slide & Barrel with Fiber-Optic Sights
This full-size Glock G20 Gen3-pattern 10mm is customized with a KKM Precision 6-inch stainless long slide and matching stainless 10mm barrel. It features a lowered ejection port, front and rear cocking serrations, and bright fiber-optic sights (green front, yellow two-dot rear). The polymer frame includes an accessory rail and is marked Made in USA (Glock, Inc., Smyrna, GA). The KKM Precision barrel and slide define this build.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
What’s Included
- Glock G20 Gen3 10mm pistol customized with a KKM Precision 6-inch stainless long slide and KKM Precision stainless 10mm barrel
- Fiber-optic sights (green front, yellow two-dot rear)
The centerpiece of this build is the KKM Precision system: a 6-inch stainless long slide paired with a matching stainless 10mm barrel. The extended barrel and long slide configuration are purpose-built components that set this example apart from a standard G20.
The aftermarket KKM slide includes front and rear cocking serrations for positive manipulation and a lowered ejection port. Its stainless finish provides a cohesive look with the barrel and complements the full-size profile.
Sighting is handled by fiber-optic units with a green front and a yellow two-dot rear, giving a clear, high-contrast sight picture. These sights are installed to the long slide and align cleanly with the extended configuration.
The Gen3-pattern polymer frame includes an accessory rail and a standard Gen3-style magazine release. The frame is marked Made in USA (Glock, Inc., Smyrna, GA), and the pistol operates with a semi-automatic, striker-fired action in 10mm.
This configuration emphasizes the KKM Precision barrel and slide pairing, delivering a cohesive stainless long-slide setup on the proven G20 Gen3 platform.