Glock 47

G17 Slide, G45 Frame: The CBP Formula

The Glock 47’s defining characteristic is its hybrid geometry — the longer G17 slide provides a longer sight radius and more barrel length for improved accuracy at duty distances, while the G45’s shorter grip frame reduces the pistol’s overall length for better holster compatibility and more concealable carry when off duty. CBP specified this combination after evaluating full-size Glocks for their patrol use case: the agency wanted G17 accuracy and G45 concealability in one package. The G47 delivers both. For civilian buyers who want a full-size duty-accurate Glock in the most compact full-size package: the G47 is the answer.

MOS: Factory Optics-Ready

The Glock 47 ships exclusively in MOS (Modular Optic System) configuration — no iron-sight-only variant is produced. The MOS slide accepts Glock’s adapter plate system for mounting common red dot footprints including the Shield RMSc, Trijicon RMR, Holosun 507C, and others. For duty buyers who want a factory optics-ready full-size Glock for red dot carry, the G47 MOS provides it without aftermarket slide milling. The MOS backup iron sights co-witness with mounted optics at the standard height. See our handgun optics page for compatible red dot options.

G47 vs. G17 and G19: Choosing Your Full-Size Glock

Within the Glock lineup, the G47 occupies the space between the G17 and G19. The G17 has the longest grip and slide for maximum accuracy and the largest aftermarket. The G19 is the compact carry standard. The G47’s shorter grip than the G17 makes it more concealable while retaining the G17-length slide’s sight radius and barrel length advantages. For buyers who carry their duty pistol off-duty: G47. For buyers who want maximum full-size performance: G17. For buyers who want maximum compactness: G19. The G47 targets the duty-carry overlap that the G17 and G19 individually don’t cover.

Duty and Law Enforcement Applications

The Glock 47’s CBP adoption gives it the law enforcement duty use case that positions it as a credible agency-procurement pistol. Civilian buyers who carry for professional protection, work in security, or want the duty-specification pistol used by a federal agency will find the G47’s CBP heritage a meaningful differentiator from standard Glock configurations. The G47’s MOS-only configuration reflects CBP’s optics-first procurement philosophy — the agency specified optics readiness as standard rather than optional.

Frequently Asked Questions: Glock 47

What is the Glock 47?
The Glock 47 is a full-size 9mm pistol — essentially a G17-length slide on a G17-length frame, making it dimensionally identical to the G17 but with an important distinction: the G47 uses a G45/G19X-compatible frame that accepts the G17’s 17-round magazines as flush-fit while also accepting the shorter G19 15-round magazines. The G47 was originally developed for US Customs and Border Protection as a duty pistol that could share magazines with agents’ issued G19s. It ships exclusively as the G47 MOS with Glock’s factory optics-ready slide.

What is the difference between the Glock 47 and Glock 17?
The G47 and G17 are functionally very similar — both are full-size 9mm pistols with 17-round standard capacity. The G47’s frame uses the Gen5 G19/G45 cross-compatible design with a different grip geometry than the G17, and the G47 accepts both G17 17-round and G19 15-round magazines interchangeably as designed accessories. The G17’s frame is G17-specific. For buyers deciding between them, the G47’s magazine versatility is the primary differentiator — it’s the right choice for agencies or individuals who run both G19 and G17/G47 in the same inventory.

Is the Glock 47 MOS optics-ready from the factory?
Yes — the G47 ships only as the MOS (Modular Optic System) configuration with Glock’s factory optics cut. No non-MOS G47 is produced. This makes the G47 one of Glock’s most modern offerings — factory optics integration is standard rather than optional.

Who is the Glock 47 designed for?
The G47 was specifically developed for US Customs and Border Protection to provide a full-size duty pistol that shares magazines with the G19. Law enforcement agencies with mixed G19/G45 and full-size inventories benefit most from the G47’s cross-compatibility. For civilian buyers, the G47 is an excellent full-size MOS pistol — though most will find the G17 MOS or G45 MOS serve the same role at similar value.

See Also: Glock Firearms • Glock 17 • Glock 19 • Glock 45 • Glock 49