Glock G20SF Gen3 10mm, Aftermarket Long-Slide Upper, Silver Slide, 6-Inch Barrel, TG-M2/TG-H3 Sights, 2x 15-Round Mags
This Glock G20SF Gen3 stands out with an aftermarket long-slide upper and a 6-inch extended steel barrel, finished in silver with clean, no-rollmark sides. It retains the SF (Short Frame) profile for reduced trigger reach and includes TG-M2 (rear) and TG-H3 (front) iron sights. Two factory 15-round magazines are included, making this a complete full-size 10mm setup with distinctive configuration and markings.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Visible handling and use marks on exterior surfaces. See photos for close-ups of markings.
What’s Included
- Glock G20SF Gen3 10mm pistol
- Aftermarket long slide upper with 6-inch barrel (installed)
- Iron sights marked TG-M2 (rear) and TG-H3 (front) (installed)
- Two 15-round factory Glock 10mm magazines (magazine bodies marked "GLOCK AUSTRIA" near the base; standard Glock (+0) floorplates)
This full-size Gen3 SF variant delivers the 10mm chambering in a Short Frame profile that reduces trigger reach compared to standard large-frame models. The black polymer frame features Gen3 finger grooves and the integral Glock Gen3 accessory rail.
The installed aftermarket long-slide upper is not a cataloged Gen3 G20SF configuration. It includes a silver-finish slide with rear serrations, front bevels, a plain top, and no factory model rollmarks. The extended 6-inch steel barrel complements the upgraded long-slide assembly and is highlighted as an Upgraded Long Slide and 6" Barrel.
Sights are aftermarket iron sights: a TG-M2-marked rear and TG-H3-marked front, set up on the long-slide upper. The sighting system is straightforward and durable.
Operation is short-recoil, locked-breech, striker-fired with a trigger safety. Capacity is 15+1 with the included pair of factory Glock 10mm magazines. Markings include MADE IN AUSTRIA and GLOCK, INC., SMYRNA, GA.