Glock G17L Gen5 MOS 9mm Long-Slide, 6.02 in Barrel, nDLC, Adjustable Sights, 17+1, Three 17-Round Magazines
This Glock G17L Gen5 MOS is the long-slide, competition-oriented 9mm variant built around a 6.02 in barrel and an extended sight radius. It features the Glock Marksman Barrel with an nDLC finish, front and rear slide serrations, and a flared magwell. Austrian proof marks confirm origin, the slide is marked AUSTRIA, and the frame and barrel carry matching serials. It ships with three 17-round magazines, adjustable iron sights, a factory case, and a Glock MOS adapter plate as shown.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent polygonal rifling with strong, well-defined engagement.
Specific Condition Notes: Light handling wear is present. Minor surface scratches appear in a few spots on the metal. The marks are small and consistent with normal use, and the finish remains mostly strong overall.
What’s Included
- Glock factory polymer case
- 3x 17-round factory Glock 9mm double-stack polymer magazines
- Glock Gen5 interchangeable backstraps (2 additional)
- Glock MOS adapter plate (one plate shown)
The G17L long-slide configuration pairs a 6.02 in barrel with an overall length of approximately 9.45 in, delivering an extended sight radius of about 205–210 mm. This layout supports precise sight alignment with the included front post and adjustable rear iron sights.
Gen5 enhancements are present throughout: the Glock Marksman Barrel (GMB) with nDLC finish, front and rear slide serrations, an ambidextrous slide stop lever, a flared magwell, and a rough-textured frame with interchangeable backstraps. The polymer frame incorporates steel inserts for durability.
The MOS configuration provides a factory optics-cut slide to accept compatible red-dot sights via adapter plates; one MOS adapter plate is included as shown. This setup allows the pistol to be configured to the buyer’s preferred mounting solution.
Capacity is 17+1 in 9mm Luger, and three 17-round factory magazines are included. The Safe Action system and full-size frame layout provide familiar Glock handling, while the integral accessory rail offers space for a light or other compatible accessory.
Origin and markings are clearly documented: the barrel bears Austrian proof marks and an “AT” barrel marking, the slide is marked “AUSTRIA,” and the frame and barrel have matching serials. These details verify manufacture and component matching on this example.