Guns

Warne Adds Five Rounds to Glock 43X and 48 Steel Magazines

November 8, 2026

Warne has released an aluminum base extension that adds five rounds to Glock's factory 15-round steel magazines for the G43X and G48, according to a first look by Adam Borisenko at Gun Digest. It lets owners of the slim pistols push capacity to 20 rounds while keeping Glock's own magazines.

Snapshot

Gun Digest's first look covers Warne's aluminum base extension for Glock's factory steel G43X and G48 magazines, explaining why it matters now that those slim pistols ship with 15-round magazines, how it is built and what it costs. The outlet's view is that the 20-round setup is harder to conceal but still useful for carry under the right clothing, as a spare or at the range.

Key points

  • Background: Earlier this year Glock began shipping the Slimline G43X and G48 with steel 15-round magazines, up from 10 rounds. Before that, mags of that size came only from aftermarket makers.
  • Capacity: The extension fits any factory steel G43X or G48 magazine and raises it from 15 rounds to 20.
  • Build: It is made of black anodized aluminum with a finger groove for grip. Warne says the added weight helps magazines fall clear more quickly and reliably.
  • Price: The MSRP is $56.99, and the extensions are on sale now.

Quick take

Gun Digest notes that the longer magazine adds bulk and makes the pistol harder to conceal, but suggests it can still be carried under a suitable cover garment, kept as a spare pocket magazine, or used for range practice. Victor Ianciuc, Warne's Director of Operations, said the company set out to improve "durability and ergonomics" as well as capacity.

Read the full story at Gun Digest.