Glock G20 SF Gen 3 10mm Auto - Robar Custom Slide/Grip, KKM Stainless Barrel, Fiber-Optic Front Sight
This full-size Glock G20 SF Gen 3 in 10mm Auto features professional Robar Customs work and a KKM Precision stainless barrel. The Short Frame design reduces trigger reach, while added forward cocking serrations, aggressive grip stippling, and control-focused frame mods set it apart. It includes a fiber-optic front sight, a plain black rear sight with set screw, and an aftermarket trigger shoe with a red safety tab.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor, superficial scratches and small blemishes are present on the exterior. The bore is clean and shiny.
What’s Included
- MTM Case-Gard hard case
- KKM Precision stainless barrel (installed)
- Aftermarket trigger with red safety tab (installed)
- Fiber-optic front sight and plain black rear sight (installed)
- 1x 15-round Glock factory polymer magazine for 10mm Auto
The Short Frame (SF) variant shortens trigger reach for improved ergonomics while retaining the G20’s full-size 10mm capacity of 15+1. The frame is black polymer with an accessory rail integrated into the dust cover, and the slide wears a matte black finish. The Safe Action system uses three passive safeties: trigger safety, firing pin safety, and drop safety.
Robar Customs performed slide and frame enhancements: forward cocking serrations with milled front slide panels, aggressive grip stippling, finger-groove removal, and a trigger-guard undercut. These changes provide a streamlined Gen 3 profile tailored for confident handling.
A KKM Precision stainless barrel of standard length sits flush with the slide. Sights are upgraded to a red fiber-optic front and a plain black rear that is adjustable via set screw. An aftermarket trigger shoe with a red safety tab is installed.
Markings include "MADE IN AUSTRIA GLOCK, INC., SMYRNA, GA." Matching serial numbers are noted on the slide and frame. Sight radius is 6.77 in (172 mm). Overall presentation is clean and professionally executed, with the custom work integrated cleanly into the Gen 3 platform.




