The AMAG 21 SG9 is a 21-round SIG P320 9mm handgun magazine that features a stainless-steel body with polymer sub-components. Magpul AMAGs include many of Magpul's proven features, such as a high-visibility, controlled-tilt follower, stainless-steel spring, flared floorplate that's easily removable for cleaning and maintenance, paint-pen dot matrix for magazine marking, and capacity-indicator windows that start at five (5) rounds and continue along the spine in one (1)-round increments.
| UPC | 840815149323 |
| Brand | MAGPUL |
| Capacity | 21 Rounds |
| Fit | Sig P320 |
| Cailber | 9MM |
| Manufacturer | Magpul Industries |
| Manufacturer Part # | MAG1465-SST |
| Type | Magazine |
| Subcategory | Pistol Magazines |
| Color | Silver |