Book of Glock by Robert Sadowski; Stanley Ruselowski

Author:Robert Sadowski; Stanley Ruselowski
Language: eng
Format: epub
Publisher: Skyhorse Publishing
Published: 2018-03-02T05:00:00+00:00

CHAPTER 13

Models G25 and G28–Non-Compliant .380s

The G25 Gen3 (left) looks like the G19 and the G28 (right) is similar to a G26, but they use a blowback system and are chambered in .380 Auto. These models are not available to civilians in the US. Images courtesy of GLOCK, USA.

The first two .380 Auto pistols designed by Glock were not intended for the US market but for markets in countries, primarily in South America, that prohibit civilian ownership of firearms chambered in military calibers such as 9x19mm Parabellum. Only law-enforcement agencies in the US have access to the G28.

Unlike all the Glock models before, the G25 and G28 use a blowback action. This is due to the relatively low bolt thrust of the .380 Auto cartridge. The G25 and G28 operate via straight blowback of the slide. In the simplest of terms, the G25 is basically the size of a G19 but with an action modified for a blowback system and chambered .380. The G28 is a modified G26.

The G25/G28 design required modifications to the locking surfaces on the barrel, as well as a redesign of the locking block. What makes the G25 and G28 different from a traditional blowback system is the barrel is not fixed to the frame. The barrel moves rearward in recoil until it is tilted below the slide, similar to a typical standard locked-breech system.

SPECIFICATIONS

MODEL G25 Gen3 G28 Gen3

FRAME SIZE compact subcompact

CALIBER .380 Auto .380 Auto

ACTION short recoil, locked breech, tilting barrel short recoil, locked breech, tilting barrel

LENGTH 187 mm/7.36 in. 165 mm/6.41 in.

HEIGHT 127 mm/4.99 in. 106 mm/4.17 in.

WIDTH 30.00 mm/1.18 in. 30.00 mm/1.18 in.

BARREL HEIGHT 32 mm/1.26 in. 32 mm/1.26 in.

SIGHTS fixed, front dot/rear outline fixed, front dot/rear outline

SIGHT RADIUS 153 mm/6.02 in. 137 mm/5.39 in.

BARREL LENGTH 102 mm/4.01 in. 87 mm/3.42 in.

WEIGHT (Unloaded) 640 g/23.30 oz. 585 g/20.65 oz.

WEIGHT (Loaded) 775 g/31.70 oz. 675 g/23.83 oz.

TRIGGER PULL ~2.5 kg/~5.5 lbs. ~2.5 kg/~5.5 lbs.

TRIGGER TRAVEL ~12.5 mm/~0.49 in. ~12.5 mm/~0.49 in.

BARREL RIFLING right hand, hexagonal right hand, hexagonal

LENGTH OF TWIST 250 mm/9.84 in. 250 mm/9.84 in.

MAGAZINE CAPACITY 15 10

The G25 was introduced in 1995, has fixed sights and a magazine capacity of fifteen rounds. The G28 was introduced in 1997, is similar in size to the G26, and has a magazine capacity of ten rounds. Note the fifteen-round G25 magazine will function in the G28.

First-Run G25 Serial Number Prefixes

The following are the serial number prefixes of first-run Glock G25 pistols with the month and year shipped.

Gen3 G25 (“Finger Grooves and Rail” variant): LVS—October 2008

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