Glock G31

Name: Glock G31 Gen 4
Brand: Glock

Glock lists the G31 Gen4 as a Standard .357 SIG Safe Action pistol with a 15-round standard magazine and a modular back strap system. The directory normalizes its frame class as full-size.

Record / glock-g31

G31

Glock

Source verified

Scope note: Records the most recent generation Glock lists (Gen4 — there is no Gen5 G31); the unlabeled G31 page remains a separate listing. The scoped record left open whether that unlabeled page might be the current one: it is not. Its title, heading and header chips carry no generation at all, while the Gen4 page states Gen4 in all three, and the owner's manual (p. 52) lists G31 and G31 Gen4 as separate columns with different overall lengths (204 mm vs 202 mm). Chambering: the product page's caliber row reads only ".357", while the same page's overview and the manual both name the cartridge 357 SIG; the directory records .357 SIG. Glock publishes no launch release for the G31 Gen4 — all 33 live releases and the archived set were checked on 2026-08-12, and the only archived Gen4 launch release covers the G26, G27 and G35 — so year introduced is unrecorded. The manual's spec table matches the product page on every dimension.

Reference fields

Manufacturer	Glock^[1]
Firearm category	Handgun^[1]
Chambering	.357 SIG^[1]
Manufacturer chambering	.357^[1]
Generation	Gen 4^[1]
Manufacturer size class	Standard^[1]
Directory frame class	full-size
Manufacturer listing	Listed on Glock US^[1]
Year introduced	Not yet verified
Manufacturer action label	Safe Action^[1]
Overall dimensions	202 × 32 × 139 mm / 7.95 × 1.26 × 5.47 in (height: including magazine)^[1]
Barrel length	114 mm / 4.49 in^[1]
Weight without magazine	660 g / 23.28 oz^[1]
Weight with empty magazine	740 g / 26.1 oz^[1]
Magazine capacity	Standard: 15; optional listed: 10 / 16^[1]
Trigger pull	28 N / ≈6.29 lb^[1]
Slide finish	Not yet verified
Controls	Modular back strap system; reversible magazine catch^[1]
Warranty	One year from original purchase by the initial consumer; regional terms apply^[3]
MSRP	Not recorded

Verification boundary: Published technical data are rounded, may not reflect manufacturing tolerances, and may change without notice. MSRP is not recorded: most cited product pages do publish a price, but it changes without notice and independently of the specification, so this directory has no field for it and the row stays blank rather than carrying a figure that would silently go stale. Values marked ≈ were converted by this directory from the unit system the source published; the unmarked figure in the same row is the published one.

Evidence tiers backing this record: Manufacturer. Unmarked values come from manufacturer documentation; any value drawn from a lower tier is labeled inline with that tier. Where two sources disagreed, the higher tier was recorded and the disagreement noted.

Sources

[1]
G31 Gen4 — Technical DataManufacturer Manufacturer product page
Accessed 2026-08-12
[2]
GLOCK Instructions for Use — Models G17–G48 (p. 52, Standard class)Manufacturer Manufacturer owner's manual (PDF)
Accessed 2026-08-12
[3]
Glock Answers Frequently Asked QuestionsManufacturer Manufacturer support page
Accessed 2026-08-12