Source: ATF P 5300.11 · Curios or Relics List · Jan 1972 – Apr 20253,573 entries · 4 sections
The C&R RegisterA finding aid to the ATF Curios or Relics List, for Type 03 collectors
C&R · III · 035

Fiala Model 1920 repeating pistol, with stock

Section III: removed from the NFA, curio or relic under the GCA

Official wording

ATF P 5300.11 · APRIL 2025 EDITION · SECTION III · VERBATIM · PDF P. 24 ↗

Fiala, Model 1920, repeating pistol, cal. .22LR, in all barrel lengths with accompanying detachable shoulder stock.

What this entry requires

  • ATF REQUIRESConfigured as the ATF wording states: “with accompanying detachable shoulder stock”
  • INFOATF states no date; production was about 1920–1923.

Editorial facts · Our research

Country
United StatesBasis: no citation
Manufacturer
Fiala Arms & Equipment Co., New Haven, CTBasis: the ATF wording
Type
PistolBasis: the ATF wording
Action
OtherBasis: no citation
Caliber
.22 LRBasis: the ATF wording
Made
1920–1923production; ATF states no dateBasis: outside reference ¹
Service
Commercial

Source

Official wording
ATF P 5300.11, April 2025 edition · Section III · PDF p. 24 ↗ · ATF original ↗
Entries
1 line
Verbatim check
Checked against the PDF text before every release
Editorial facts
Confidence: Medium · Last revised 18 October 2026 (Evidence pass) · How we rate confidence
References
  1. 1. all4shooters.com ↗, years: "the pistols produced by Fiala Arms from 1920 to 1923 were little more than 4000, after which the company closed its doors and sold the manufacturing rights to other manufacturers"
Fact tags
  • ATF the ATF wording states it.
  • REF ¹ an outside reference supports it; the number points to the list of references.
  • ESTIMATE an approximate or indirect reading, for example the production range of the base model.
  • NO CITATION we haven’t attached a reference for this fact; it’s our editorial reading, not ATF’s.
Source checked
20 October 2026: ATF’s page still lists the April 2025 edition
Corrections
None

Historical context

Patent drawing, U.S. Patent 1,489,989 (shown for Fiala Model 1920 repeating pistol, with stock)
Shown: the patent drawing for Lucius N. Diehm's manually closed magazine pistol (U.S. Patent 1,489,989), the design behind the Fiala repeating pistol; not a production example.

Image: U.S. Patent 1,489,989, “Firearm, sheet 1” by Lucius N. Diehm, Public domain (US patent). Retrieved October 2026.