Glock 23 Gen4 .40 S&W Compact Pistol, 4.02 in Barrel, 13+1 Capacity, Austria-Made Slide Marking
This Glock 23 Gen4 is a compact .40 S&W with the Gen4 feature set, including the dual recoil spring assembly, Modular Back Strap System compatibility, and an enlarged, reversible magazine catch. It has the Austria slide marking and matching serial numbers on the slide and frame. The bore is bright and clean, and it comes with one Glock factory 13-round magazine.
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 - Distinct polygonal rifling.
Specific Condition Notes: There are handling marks consistent with carry and prior use. Please review the photos for a closer look at the external finish.
What’s Included
- Glock 23 Gen4 .40 S&W pistol
- 1x 13-round Glock factory magazine (marked "GLOCK AUSTRIA")
The G23 Gen4 pairs a compact frame with a 4.02 in barrel and a 13+1 standard capacity, delivering the well-known Glock Safe Action striker-fired system and a short-recoil, locked-breech action. Polygonal rifling is used in the steel barrel.
Gen4 enhancements include the dual recoil spring assembly and the Modular Back Strap System interface, along with an enlarged, reversible magazine catch. The frame features the Gen4 rough-textured surface with finger grooves for consistent purchase.
The slide wears a matte black finish with rear serrations only. Factory polymer sights consist of a white-dot front and a white-outline U-notch rear. An integral Glock accessory rail is molded into the dustcover for mounting compatible lights or lasers.
Origin details include the "MADE IN AUSTRIA GLOCK, INC., SMYRNA, GA., AUSTRIA" slide marking, and this example has matching serial numbers on the slide and frame. The pistol is fitted with fixed factory sights and retains the standard Glock control layout.
One Glock factory .40 S&W 13-round magazine is included, marked "GLOCK AUSTRIA."




