Magazine Capacity Restrictions Notice
Please review your state laws before ordering magazines.
FieldsUSA does not ship magazines that exceed legal capacity limits to the following states unless you are exempt (e.g. law enforcement, active duty military, or possess a high-capacity permit):
It is your responsibility to understand and comply with all local, state, and federal laws. We reserve the right to cancel any order that violates state regulations.
For exemption documentation, contact [email protected] before placing your order.
The Glock MF21013 is a factory original magazine designed specifically for Glock 21 and Glock 41 handguns chambered in .45 ACP. It features a 13-round capacity and a black polymer body with a hardened steel insert for enhanced durability and resistance to deformation.
Founded in 1981 in Vienna, Austria, Glock quickly became one of America's most popular manufacturers of reliable and durable pistols and accessories. Glock is renowned for its use of advanced polymer plastics combined with metal components, resulting in high-quality, long-lasting products trusted worldwide.
| Weight | 0.2000 lbs |
|---|---|
| Dimensions | 8.50 × 4.10 × 1.20 in |
| Brand | |
| MPN | MF21013 |
| Finish | Black |
| Brand Fit | Glock |
| Model Fit | G21 |
| Model | G21/41 |
| Material | Polymer |
| FireArm | No |
| Caliber | 45 ACP |
| Capacity | 13 |
| UPC | 764503210136 |
| Weight | 0.2000 lbs |
|---|---|
| Dimensions | 8.50 × 4.10 × 1.20 in |
| Brand | |
| MPN | MF21013 |
| Finish | Black |
| Brand Fit | Glock |
| Model Fit | G21 |
| Model | G21/41 |
| Material | Polymer |
| FireArm | No |
| Caliber | 45 ACP |
| Capacity | 13 |
| UPC | 764503210136 |



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