GLOCK

Glock 21 Gen5 MOS, Semi-automatic, .45 ACP, 4.61" Barrel, 13+1 Rounds

Item currently sold out

Key Features

  • .45 ACP
  • 13+1 rounds
  • 4.61" Marksman barrel
  • Traditional fixed U-notch sights
  • Modular Optics System
  • Modular Backstrap System
  • Includes (3) 13-rd. magazines, (2) additional backstraps, and optics mounting plate

Satisfaction Guarantee

Order with complete confidence! Your satisfaction is guaranteed, period! We stand behind every item we sell. If you're not happy within 90 days of shipment, just return the item with your invoice and we'll promptly refund your merchandise total. See More Details

Lowest Price Guarantee

For everything to outfit your passion...at the Lowest Prices, Guaranteed! If you find a lower advertised price for an item we sell, let us know at the time of purchase or within 10 days of placing your order and we will refund you the difference. See More Details

GLOCK logo

Glock® 21 Gen5 MOS .45 ACP Semi-automatic Pistol

The G21 has a well-deserved reputation as the greatest .45 auto in the world—and now, it's even better with the addition of Glock's proven MOS (Modular Optics System) technology that makes it easier than ever to mount a red dot. The G21 Gen5 MOS comes with a factory-cut removable plate that can be taken out and replaced with mounting plates—no custom machining necessary. The pistol includes a single MOS adapter plate. The adapter plate included will fit the following: Trijicon, Ameriglo and Holosun (except 509). Additional plates available through Glock.

In every other way, it's yet another in a long line of excellent Gen5 Glock pistols. Like other Gen5 models, the G21 Gen5 preserves the reversible magazine catch of the Gen4, but goes one step further by incorporating a truly ambidextrous one-piece slide lock. That's a nice upgrade for you lefties out there.

The magazine and mag well have also been overhauled. The magazine now features an orange follower so you can visually identify empties, as well as an extended lip for grip. The mag well has been flared for faster reloads. The finger grooves are now gone, and the front strap features a cut-out for extracting the magazine. Bottom line: it's the same Glock you know and love. It's just a little more shooter-friendly now.

  • Modular Optics System (MOS) makes it easy to mount optics without custom machining of your pistol's slide
  • Gen5 Marksman barrel with enhanced polygonal rifling
  • Gen5 ambidextrous one-piece slide lock makes it more lefty-friendly
  • Gen5 flared magazine well for easy reloads
  • Gen5 straight-grip design fits all hands
  • Rounded slide front for easier holstering
  • New nDLC finish provides tougher, more durable corrosion and scratch resistance
  • Grip stippling is the same as on the Gen 4, and still delivers remarkable traction for extreme environments and gloved operators
  • Backwards-compatible with older magazines
  • Includes (3) 15-rd. magazines, (2) additional backstraps, and optics mounting plate

Order today!

Key Specifications

  • Item Number: 735889
  • Caliber: .45 ACP
  • Action: Semi-automatic/striker-fired
  • Capacity: 13+1
  • Barrel Length: 4.61"
  • Frame: Polymer
  • Grips: Stippled, straight
  • Sights: Fixed
  • Trigger pull: 5.5 lbs.
  • Overall Length: 8.07"
  • Overall Weight: 29.1 oz.
  • Mfg. Number: GLOGPA215S203MOS
  • UPC: 764503054419