Glock 48 Pistols
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Glock 48 Pistols
The Glock 48 is Glock’s Slimline 9mm with compact length. A 4.17 in. Marksman Barrel sits in a 6.85 in. slide. Overall length is 7.28 in., and height is 5.04 in. with a magazine in place. A Glock 48 is 1.10 in. wide, with a 0.87 in. slide, and an iron-sight 48 weighs 18.48 oz without a magazine. A Glock 48 MOS weighs 18.31 oz without a magazine. Standard magazines started as 10-round Slimline magazines. Handguns ship to a licensed FFL.
That compact-length grip is the same frame Glock uses on the Glock 43X: a built-in beavertail, a short trigger distance, and a reversible magazine catch. Precision-milled front serrations give traction at the front of the slide when you rack it. The barrel is the Gen5 Glock Marksman Barrel, with enhanced polygonal rifling and a recessed crown. Safe Action keeps a consistent trigger pull from the first round to the last, with three automatic safeties that disengage as the trigger is pulled and re-engage when the trigger is released. Glock 48 Rail and Glock 48 MOS pistols use Glock’s slim mounting rail in front of the trigger guard. Choose a light listed for that Slimline rail.
Shop the Glock 48 line here. Factory pistols here include Rail iron-sight guns, MOS optic-ready guns, USA-built guns, 10-round guns, and 15-round guns. Cerakote, engraved, and other custom 48 pistols sit here with the factory guns. Aimpoint COA 48 pistols sit on the Glock COA page. See also Glock 43X, Glock 43, Glock 19, Glock magazines, and the Glock pistols hub.
Glock 48 vs Glock 43X vs Glock 43 vs Glock 19
The Glock 43X is the other half of the Slimline pair. It uses this same compact-length grip, the same slim rail, and the same Slimline magazines, with a 3.41 in. barrel, a 6.06 in. slide, and a 6.50 in. overall length. Height with a magazine is 5.04 in. on both. The 48 puts that 43X grip under a compact 6.85 in. slide.
The Glock 43 is the original Slimline 9mm with a six-round magazine. It shares the 3.41 in. barrel and 6.06 in. slide with the 43X. A Glock 43 is 6.26 in. overall, 4.25 in. tall with a magazine, and 1.06 in. wide. Glock 43 magazines and Glock 48 magazines are not the same. The 48 keeps Slimline width and adds the compact-length grip plus the longer slide.
The Glock 19 is Glock’s compact 9mm in a wider frame, with a 4.02 in. barrel, a 7.28 in. overall length, and 15-round magazines as standard. Height with a magazine is 5.04 in. on both. A Glock 19 is about 1.34 in. wide. The Glock 48 matches that compact length and height in Slimline width: 1.10 in. overall and a 0.87 in. slide.
MOS, COA, and Slimline magazines
Glock 48 MOS uses a factory-milled slide so you can mount a micro-optic without buying a new slide. Adapter plates are not in the box. The cut matches the Shield RMSc footprint and uses M4 screws. The slim cut places a compact optic closer to the line of sight, so the factory sights stay visible through a red dot you mount. A factory red dot is installed only on the pistols that list one.
Glock 48 COA pistols use Aimpoint’s A-CUT interface and a factory-installed Aimpoint COA. The optic mounts deeper in the slide on a patented wedge, without a Slimline MOS adapter plate. Factory backup sights co-witness with the COA. Those pistols also sit on the Glock COA page.
Factory Glock 48 pistols originally shipped with 10-round Slimline magazines and an orange follower. In April 2026 Glock announced OEM 15-round metal Slimline magazines for the 43X and 48 that work with the standard magazine catch, and new 43X and 48 pistols come standard with those 15-round magazines. Pistols on this page include 10-round and 15-round Glock 48 guns. Spare magazines sit on the Glock magazines page.
How to choose a Glock 48
Iron-sight Glock 48 Rail pistols keep polymer sights on the 4.17 in. Marksman Barrel and the compact grip. MOS pistols add the factory micro-optic cut for a Shield RMSc-pattern sight. USA-built pistols keep that same 48 layout from Smyrna. Custom cerakote and engraved 48 pistols keep that same 48 size under a different finish. Magazines are 10-round Slimline magazines or Glock’s OEM 15-round Slimline magazines. Handguns ship to a licensed FFL.
Frequently Asked Questions
What is a Glock 48?
The Glock 48 is Glock’s Slimline 9mm with compact length. It pairs a 4.17 in. Glock Marksman Barrel and a 6.85 in. slide with the compact-length grip Glock uses on the Glock 43X. Overall length is 7.28 in., width is 1.10 in., and height with a magazine is 5.04 in. An iron-sight 48 weighs 18.48 oz without a magazine. Safe Action gives a consistent trigger pull with three automatic safeties. Glock 48 Rail and Glock 48 MOS pistols use Glock’s slim mounting rail.
What is the difference between a Glock 48 and a Glock 43X?
They share the Slimline compact-length grip, the slim rail, and the same magazine family. Height with a magazine is 5.04 in. on both. The Glock 43X uses a 3.41 in. barrel, a 6.06 in. slide, and a 6.50 in. overall length. The Glock 48 uses a 4.17 in. barrel, a 6.85 in. slide, and a 7.28 in. overall length. The 48 is that same grip under a compact-length slide.
What is the difference between a Glock 48 and a Glock 43?
Both are Slimline 9mm pistols. The Glock 43 uses a six-round magazine, a 3.41 in. barrel, and a 6.06 in. slide. It is 6.26 in. overall, 4.25 in. tall with a magazine, and 1.06 in. wide. The Glock 48 uses the compact-length G43X grip, a 4.17 in. barrel, and a 6.85 in. slide. It is 7.28 in. overall, 5.04 in. tall, and 1.10 in. wide. Glock 43 magazines and Glock 48 magazines are not the same.
How does a Glock 48 compare to a Glock 19?
The Glock 19 is Glock’s compact 9mm with a wider frame and a different magazine family. A Glock 19 uses a 4.02 in. barrel, a 7.28 in. overall length, and 15-round magazines as standard. Height with a magazine is 5.04 in. on both. A Glock 19 is about 1.34 in. wide. The Glock 48 matches that compact length and height in Slimline width: 1.10 in. overall and a 0.87 in. slide.
Does a Glock 48 MOS include adapter plates?
No. Glock 48 MOS does not come with adapter plates. Slimline MOS cuts are milled for specific micro-optics. Standard Slimline MOS is the Shield RMSc footprint with M4 screws. Cover-plate screws stay with the cover plate.
What magazines does a Glock 48 use?
Factory Glock 48 pistols originally shipped with 10-round Slimline magazines and an orange follower. Glock also makes OEM 15-round metal Slimline magazines for the 43X and 48 that work with the standard magazine catch, and new 43X and 48 pistols come standard with those 15-round magazines. Pistols on this page include 10-round and 15-round Glock 48 guns. Spare magazines sit on the Glock magazines page.
What is a Glock 48 COA?
A Glock 48 COA is a 48 with a factory-installed Aimpoint COA optic on Glock’s A-CUT interface. The COA mounts deeper in the slide on a patented wedge, without a Slimline MOS adapter plate. Factory backup sights co-witness with the optic, and the low mount keeps the optic close to the slide for concealment. Those pistols also sit on the Glock COA page.
Does a Glock 48 take a weapon light?
Glock 48 Rail and Glock 48 MOS pistols use Glock’s slim mounting rail in front of the trigger guard. That rail is built so a Slimline-listed light sits close to the bore and still leaves room for a two-handed grip. It is not a 1913 Picatinny rail. Match the light to Glock’s slim rail.
Are Glock 48 pistols built in the USA?
Some Glock 48 pistols on this page are USA-built and say so in the title. Factory Glock 48 guns also ship from Austria. Configuration is the same Slimline 48 layout either way. The slide stamp and serial format differ.
Does a Glock 48 ship to my door?
Handguns ship to a licensed FFL for transfer.