
Availability: In Stock
The ProMag HECA2 is a 20-round magazine purpose-built for the H&K USP .45 ACP pistol. If you're running a USP and want reliable extra capacity for the range, competition, or duty use, this steel magazine delivers straightforward functionality backed by American manufacturing. ProMag magazines are made in the USA and come with a lifetime guarantee against manufacturer defects—a solid commitment to standing behind their product.
What sets ProMag apart is attention to the fundamentals. The magazine springs are precision-wound using heat-treated chrome silicon wire, the kind of material choice that resists fatigue and maintains consistent feeding pressure over thousands of cycles. Every step of assembly gets checked and double-checked, which matters when reliable feeding is non-negotiable. The included grip sleeve helps you manage the larger footprint of a 20-round magazine, keeping your grip comfortable and controllable even during extended range sessions.
Built from steel with a rugged blued finish, this magazine is designed to take hard use without complaint. At 20 rounds, you're doubling the standard capacity of most USP .45 magazines, which makes a real difference if you're working through drills or stocking up for an action-packed day at the range. The straightforward design loads easily, and the steel construction resists damage from drops and rough handling that would compromise lesser magazines.
| Caliber | .45 ACP |
| Capacity | 20 rounds |
| Firearm Compatibility | H&K USP |
| Material | Steel |
| Finish | Blued |
| Spring Material | Heat-treated chrome silicon wire |
| Includes | Grip sleeve |
| Warranty | Lifetime against manufacturer defects |
| Manufacturing | Made and assembled in the USA |
Yes. The HECA2 is specifically designed for the H&K USP in .45 ACP. It will not fit other pistol models.
The magazine comes with a grip sleeve to help manage the larger profile of the 20-round capacity.
Yes. ProMag manufactures and assembles this magazine in the USA and backs it with a lifetime guarantee against manufacturer defects.
The magazine uses a precision heat-treated chrome silicon wire spring, the same material used in high-demand applications. Combined with the assembly quality control process, it's designed to maintain consistent feeding pressure over extended use.



SKU: 115709523 • Width: 2.9in • Height: 2.2in • Depth: 10.5in • Weight: 0.44oz
Availability: In Stock
The ProMag HECA2 is a 20-round magazine purpose-built for the H&K USP .45 ACP pistol. If you're running a USP and want reliable extra capacity for the range, competition, or duty use, this steel magazine delivers straightforward functionality backed by American manufacturing. ProMag magazines are made in the USA and come with a lifetime guarantee against manufacturer defects—a solid commitment to standing behind their product.
What sets ProMag apart is attention to the fundamentals. The magazine springs are precision-wound using heat-treated chrome silicon wire, the kind of material choice that resists fatigue and maintains consistent feeding pressure over thousands of cycles. Every step of assembly gets checked and double-checked, which matters when reliable feeding is non-negotiable. The included grip sleeve helps you manage the larger footprint of a 20-round magazine, keeping your grip comfortable and controllable even during extended range sessions.
Built from steel with a rugged blued finish, this magazine is designed to take hard use without complaint. At 20 rounds, you're doubling the standard capacity of most USP .45 magazines, which makes a real difference if you're working through drills or stocking up for an action-packed day at the range. The straightforward design loads easily, and the steel construction resists damage from drops and rough handling that would compromise lesser magazines.
| Caliber | .45 ACP |
| Capacity | 20 rounds |
| Firearm Compatibility | H&K USP |
| Material | Steel |
| Finish | Blued |
| Spring Material | Heat-treated chrome silicon wire |
| Includes | Grip sleeve |
| Warranty | Lifetime against manufacturer defects |
| Manufacturing | Made and assembled in the USA |
Yes. The HECA2 is specifically designed for the H&K USP in .45 ACP. It will not fit other pistol models.
The magazine comes with a grip sleeve to help manage the larger profile of the 20-round capacity.
Yes. ProMag manufactures and assembles this magazine in the USA and backs it with a lifetime guarantee against manufacturer defects.
The magazine uses a precision heat-treated chrome silicon wire spring, the same material used in high-demand applications. Combined with the assembly quality control process, it's designed to maintain consistent feeding pressure over extended use.
SKU: 115709523 • Width: 2.9in • Height: 2.2in • Depth: 10.5in • Weight: 0.44oz


