GLOCK 21 GEN 4 .45 ACP

(1 customer review)


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GLOCK 21 Gen 4 .45 ACP

The Glock 21 Gen 4, like any other Glock, is known for it’s lightweight yet packing a punch. Bringing the legendary stopping power of the classic .45 AUTO round while being light on the hip. The Frame is as compact as possible with its Small Frame technology, all whilst keeping the 10 round capacity in the double stack magazine.

Adapt your gun to your palm size with the Gen 4 Modular back strap system. Left Handed? You’re able to reverse the magazine release on this to accommodate you whether being left or right handed. The Rough textured Stippling will make sure you keep a positive grip on the pistol. Don’t worry about being a .45 AUTO round with a polymer pistol as the Gen 4 line features their new dual recoil spring assembly which outlasts their previous recoil assembly and extends operation.


  • Lightweight with power of the .45AUTO round
  • Dual Recoil System for extended service life
  • Reversible Mag release for Left or Right handed operation
  • Compact frame as possible
  • 10 Round Double Stack mag capacity
  • 3 Magazines included
  • Cleaning brush included
  • Speed Loader included


Additional information

Weight 2.5 lbs

1 review for GLOCK 21 GEN 4 .45 ACP

  1. Adam h. (verified owner)

    Great gun. Can’t go wrong with Glock

  2. Mike

    I’ve had issues with guns, sights and my eyes. Squinting or an eye closed trying to find that right sight hold. When I picked this gun up and held it, the sights were instantly clear with both eyes open. Along with the great sights, it feels comfortable in the hands & manageable recoil with the dual spring. I’ve never liked the glock but this gun changed my mind.

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