Glock 21 Gen5 MOS .45 ACP Full-Size, nDLC Finish, GMB Barrel, TG-H3 Metal Sights, 2 Magazines
This Austrian-made Glock 21 Gen5 MOS stands out with its nDLC-finished slide, Glock Marksman Barrel with octagonal rifling, and a TG-H3-marked metal sight set installed. It includes two Glock .45 Auto magazines—one standard 13-round magazine and one fitted with an aftermarket extended basepad that increases capacity to approximately 17 rounds—and it retains matching serial numbers on the slide, barrel, and frame.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent - Clean polygonal (octagonal) rifling consistent with the Glock Marksman Barrel.
Specific Condition Notes: Light prior handling is visible only on close inspection. The bore presents a bright, mirror-like interior.
What's Included
- Glock factory hard case
- Glock factory owner's manual
- Glock Modular Backstrap System (MBS) beavertail backstraps
- Glock magazine loader
- Two factory Glock .45 Auto magazines: one 13-round standard and one fitted with an aftermarket extended basepad (approximately 17-round capacity)
The Gen5 MOS configuration brings front and rear slide serrations, a Gen5 beveled slide nose, and the MOS interface with the cover plate installed. The slide wears Glock's nDLC black finish, and the frame features the Gen5 texture with no finger grooves and a flared magwell for efficient reloads.
The 4.61-inch Glock Marksman Barrel is cold hammer forged with octagonal rifling, providing a smooth, polygonal bore profile. The bore is clean with a mirror finish, aligning with the excellent condition noted.
A TG-H3-marked metal sight set is installed, offering a durable fixed-sight arrangement. Controls include ambidextrous slide stop levers, and the dustcover incorporates the Glock accessory rail for compatible lights or accessories.
This pistol was manufactured in Austria and bears the frame marking "Made in Austria – Glock, Inc., Smyrna GA." It includes two factory .45 Auto magazines: one 13-round standard magazine and one magazine fitted with an aftermarket extended basepad that increases capacity to approximately 17 rounds. The slide, barrel (serial located on the barrel cam/lug on the underside, not visible through the ejection port), and frame share matching serial numbers.