| Product Description |
New .22-.45 Service Model Conversion Unit |
| Known Examples |
Known examples of "U" numbered conversion units. |
| Serial
Number U21 |
Pre-War .22 LR Conversion Unit with Factory Case
(Commercial) |
| Serial
Number U29 |
Pre-War .22 LR Conversion Unit with original box
(Commercial) |
| Serial
Number U56 |
Pre-War .22 LR Conversion Unit with
original box (Commercial) |
| Serial
number U216 |
Pre-War .22 LR Conversion Unit with original box
(Commercial) |
| Serial
Number U229 |
Pre-War .22 LR Conversion
Unit (Commercial) |
| Serial Number U310 |
Pre-War .22 LR Conversion
Unit (Commercial) |
| Serial
Number U902 |
Pre-War .22 LR Conversion Unit (Commercial) |
| Serial
Number U998 |
Pre-War .22 LR Conversion Unit (Commercial) |
| Serial
Number U1333 |
Pre-War .22 LR Conversion Unit (The Adjutant General of
Virginia) |
| Serial Number U1354 |
Pre-War .22 LR Conversion Unit
(Military - USMC) |
| Serial
Number U1492 |
Pre-War .22 LR Conversion Unit
(Military - USMC) |
| Serial
Number U1748 |
Pre-War .22 LR Conversion Unit (Military - U.S. Army) |
| Serial
Number U2104 |
Pre/Post-War .22 LR Conversion Unit
(Commercial) |
| Serial
Number U2582 |
Pre/Post-War .22 LR Conversion Unit (Commercial) |
| Circa.
1948 |
Post-War .22 LR Conversion Unit
(Commercial) |
| Kongsberg Conversion |
Pre-War to Post-War .22 LR Conversion Unit for the
Kongsberg M/1914 pistol |
| Sedgley SN 957 |
.22 LR Barrel for 1911/1911A1 |
