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Shadow Systems MR920
As of November 1, 2026, the California DOJ Roster of Certified Handguns lists 3 models in the Shadow Systems MR920 family.
Source: California DOJ Roster of Certified Handguns, captured November 1, 2026. Check any listing against the official roster before relying on it.
DOJ lists them under the manufacturer name Shadow Systems. Caliber across the listed rows: 9mm. Type: Pistol. Barrel length: 4".
Rostered models
| Model | Caliber | Barrel length | Type | Expiration date |
|---|---|---|---|---|
| MR920 SS-1039-CA / Stainless Steel; Polymer; Aluminum | 9MM | 4" | Pistol | 01/01/27 |
| MR920 SS-1040-CA / Stainless Steel; Polymer; Aluminum | 9MM | 4" | Pistol | 01/01/27 |
| MR920 SS-1052-CA / Stainless Steel; Polymer; Aluminum | 9MM | 4" | Pistol | 01/01/27 |
Each row is one listing as DOJ publishes it. Finish, barrel, caliber and material variants are separate listings, and the expiration date is the day the listing lapses unless the manufacturer renews it.
Penal Code 27595 (AB 1127) flags
3 of 3 listings in this family carry the DOJ "+" designation in the roster data, the mark tied to Penal Code section 27595 (added by AB 1127): MR920 SS-1039-CA / Stainless Steel; Polymer; Aluminum; MR920 SS-1040-CA / Stainless Steel; Polymer; Aluminum; MR920 SS-1052-CA / Stainless Steel; Polymer; Aluminum.
3 of 3 listings are marked in the roster data as added pursuant to the court's order in Boland v. Bonta.
Manufacturer-published specifications
| Caliber | 9mm |
|---|---|
| Barrel length | 4 in |
| Overall length | 7.12 in |
| Height | 4.83 in |
| Width | 1.1 in |
| Weight (unloaded) | 21.2 oz |
| Action | Striker-fired |
| Frame material | Textured polymer |
| Sights | Green tritium front; black serrated rear |
| Optics-ready | Yes |
Configuration described: Shadow Systems MR920 (compact) product-line page. The roster SKUs (SS-1039, SS-1040, SS-1052) are not listed on the OEM site.
Source: the manufacturer's page (1), the manufacturer's page (2), the manufacturer's page (3), read October 4, 2026. Values are shown as published, describe the configuration the manufacturer names, and are unverified until a person checks them against the source.
Roster listing history
- MR920 SS-1039-CA*+ / Stainless Steel; Polymer; Aluminum: First listed between Oct 2024 and Jan 2025. Still listed as of Oct 4, 2026.
- MR920 SS-1040-CA*+ / Stainless Steel; Polymer; Aluminum: First listed between Jan 2025 and Apr 2025. Still listed as of Oct 4, 2026.
- MR920 SS-1052-CA*+ / Stainless Steel; Polymer; Aluminum: First listed between Jan 2025 and Apr 2025. Still listed as of Oct 4, 2026.
History is reconstructed from archived copies of the DOJ roster (compiled October 4, 2026) and is draft research. A date range means the archive shows the model present on one date and absent on another, and a single day is given only where a DOJ document states it. Removal dates come from the DOJ list of removed handguns.
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Related pages
Informational content is not legal advice. Firearm transfers in California must be completed through a licensed dealer.