Global InformationSemmerling LM4 information
| Semmerling LM4 | |
|---|---|
 Semmerling LM4—satin chrome variant | |
| Type | Compact pistol |
| Place of origin |  United States |
| Production history | |
| Designer | Philip R. Lichtman |
| Designed | 1979[1] |
| Manufacturer | Semmerling, and later American Derringer |
| Unit cost | $645 (1980s)[1] |
| Produced | 1979-1990s (Semmerling) 1990s-2003[1] |
| No. built | 600 |
| Variants | LM1 LM2 (.380 ACP semi-automatic variant) LM3 and the later XLM based on the LM4 (.45 ACP semi-automatic variant) LM4 |
| Specifications | |
| Mass | 560.4 g (19.77 oz) fully loaded |
| Length | 93.98 mm (3.7") |
| Barrel length | 87.63 mm (3.45") |
| Width | less than 25.4 mm (1") (21.59 mm (0.85") with "thin kit") |
| Height | 93.98 mm (3.7") |
| Cartridge | .380 ACP (LM2 variant) .45 ACP (XLM and LM4 variants) |
| Action | Simple blowback (LM2, LM3 and XLM variants) manually-repeating Double action (Semmerling LM4) |
| Feed system | 4-round proprietary magazine |
| Sights | fixed iron sights |
The Semmerling LM4 is a five-shot, manually repeating double-action pocket pistol.
- ^ a b c McCollum, Ian (2020), Semmerling LM4: The Smallest Repeating .45ACP