Source-verified record · Checked 2026-08-11
Glock G21
Glock lists the G21 Gen5 MOS as a Standard .45 Auto Safe Action pistol with a 13-round standard magazine and an optic-ready slide.
Reference fields
| Manufacturer | Glock[1] |
|---|---|
| Firearm category | Handgun[1] |
| Chambering | .45 ACP[1] |
| Manufacturer chambering | .45 Auto[1] |
| Generation | Gen 5 MOS[1] |
| Manufacturer size class | Standard[1] |
| Directory frame class | full-size |
| Manufacturer listing | Listed on Glock US[1] |
| Year introduced | 2023[2] |
| Manufacturer action label | Safe Action[1] |
| Overall dimensions | 205 × 35 × 140 mm / 8.07 × 1.38 × 5.51 in (height: including magazine)[1] |
| Barrel length | 117 mm / 4.61 in[1] |
| Weight without magazine | 735 g / 25.93 oz[1] |
| Weight with empty magazine | 825 g / 29.1 oz[1] |
| Magazine capacity | Standard: 13; optional listed: 10[1] |
| Trigger pull | 26 N / ≈5.85 lb[1] |
| Slide finish | nDLC[1] |
| Controls | Reversible magazine catch; ambidextrous slide stop lever; Modular Backstrap System[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]G21 Gen5 MOS — Technical DataManufacturer Manufacturer product pageAccessed 2026-08-11
- [2]Expanding Perfection (January 16, 2023)Manufacturer Manufacturer press releaseAccessed 2026-08-11
- [3]Glock Answers Frequently Asked QuestionsManufacturer Manufacturer support pageAccessed 2026-08-11