Glock G48 9mm
Model: PA4850201
Glock G48 9mm
Model: PA4850201
Full Specifications
About This Firearm
The Glock G48 is a slim striker-fired 9mm built for everyday carry and range work. Glock lists the current build as the G48 Rail, with a black nDLC slide and a slim mounting rail. Its 4.17-inch barrel is the longest of the Slimline pistols, which stretches the gun to 7.28 inches overall while the frame stays 1.1 inches across.
Two magazines come in the box with a speed loader, a cleaning set, a cable lock and a case, and the magazine follower is orange. The barrel is Gen5's Marksman barrel, the frame has a built-in beaver tail and the extended magazine catch reverses for left-handed use. The slide is not cut for an optic, and nothing on the grip adjusts, since the Slimline frame takes none of the beavertail backstraps a Gen5 frame does. The rail in front of the trigger guard is the slim pattern, so a full-size weapon light will not clamp to it.
If you're cross-shopping, the Glock G43X shares the frame, the 5.04-inch grip height and the width, with a barrel 0.76 inches shorter and 2.04 oz less weight. Glock offers the Glock G19 Gen5 as the size comparison, and the G19 matches the G48 on overall length and grip height but runs 1.34 inches wide, holds 15 rounds and weighs 23.63 oz. The G48 keeps the G19's length and is 0.24 inches narrower.
Best For
Strengths & Limitations
- The nDLC slide finish is the same treatment Glock uses across the Gen5 line.
- Holsters, sights and lights cut for the G43X fit the frame, since only the slide and barrel are longer.
- The magazine catch reverses for a left-handed shooter, with New Style magazines required in that position.
- No optic cut on this build, so a dot means the MOS slide instead.
- Capacity depends on when the pistol shipped, since Glock moved the G48 from a single-column magazine to a metal double-stack one in May 2026.
- The slim rail will not take a standard-rail light.
Category Rankings
How the Glock G48 9mm ranks among compact 9mm Luger handguns.
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Frequently Asked Questions
How does the G48 compare with the G19 on size?
Glock describes the G48 Rail as similar in length and height to the G19 with the width of the pistol reduced. The two match on overall length and grip height, and the G48 is the narrower of the two.
Will the capacity go up?
Glock said on 17 April 2026 that the G43X and G48 would move from the single-column magazine to a metal double-stack magazine from May 2026, with the catch recess radiused so the standard magazine catch can stay.
How often does Glock want it serviced?
Cleaning and lubrication before the first firing, after each firing and at least once a year. Glock adds that pistols in law enforcement, security or military carry, or under heavy use, should go to a Glock-certified armorer about once a year.