
Availability: In Stock
Current Stock: Out of stock
The ProMag Sig Sauer P365 9mm Luger 20-round magazine is a high-capacity answer for shooters who want more rounds downrange without reloading. Built for the Sig Sauer P365 platform, this magazine transforms your carry or range gun into a higher-capacity package while maintaining reliability. Whether you're training at the range, running drills, or building redundancy in your magazine rotation, a 20-rounder gives you practical flexibility that standard-capacity mags can't match.
Construction centers on heat-treated steel, finished in black oxide for corrosion resistance and durability in the field. The magazine follower is injection molded to ensure smooth, consistent round feeding, while the spring uses heat-treated chrome silicone wire—engineered to maintain tension and reliability through thousands of cycles. All of this is built in the USA, so you're supporting domestic manufacturing while getting a magazine designed with real-world performance in mind.
Magazine reliability is foundational to pistol function. ProMag's P365 mag uses proven materials and manufacturing to keep rounds fed reliably when it matters. If you shoot your P365 regularly, a 20-round option rounds out your magazine family and gives you flexibility on the range or at the range without breaking the bank.
| Firearm Compatibility | Sig Sauer P365 9mm Luger |
| Capacity | 20 rounds |
| Body Material | Heat-treated steel |
| Finish | Black oxide |
| Follower Type | Injection molded |
| Spring Material | Heat-treated chrome silicone wire |
| Origin | Made in USA |
Yes, the ProMag magazine is designed specifically for the Sig Sauer P365 9mm Luger platform.
You receive the 20-round magazine with the black oxide finish. No additional components or accessories are included.
The standard Sig P365 magazine holds 12 rounds; this 20-round option provides significantly greater capacity for range training, competitive shooting, or building redundancy in your magazine supply without changing firearms.
The black oxide finish provides corrosion resistance and durability during regular use. Like all steel magazines, proper care—keeping it clean and dry—extends its lifespan.

SKU: 115740051 • Weight: 0.25oz





Availability: In Stock
Current Stock: Out of stock
The ProMag Sig Sauer P365 9mm Luger 20-round magazine is a high-capacity answer for shooters who want more rounds downrange without reloading. Built for the Sig Sauer P365 platform, this magazine transforms your carry or range gun into a higher-capacity package while maintaining reliability. Whether you're training at the range, running drills, or building redundancy in your magazine rotation, a 20-rounder gives you practical flexibility that standard-capacity mags can't match.
Construction centers on heat-treated steel, finished in black oxide for corrosion resistance and durability in the field. The magazine follower is injection molded to ensure smooth, consistent round feeding, while the spring uses heat-treated chrome silicone wire—engineered to maintain tension and reliability through thousands of cycles. All of this is built in the USA, so you're supporting domestic manufacturing while getting a magazine designed with real-world performance in mind.
Magazine reliability is foundational to pistol function. ProMag's P365 mag uses proven materials and manufacturing to keep rounds fed reliably when it matters. If you shoot your P365 regularly, a 20-round option rounds out your magazine family and gives you flexibility on the range or at the range without breaking the bank.
| Firearm Compatibility | Sig Sauer P365 9mm Luger |
| Capacity | 20 rounds |
| Body Material | Heat-treated steel |
| Finish | Black oxide |
| Follower Type | Injection molded |
| Spring Material | Heat-treated chrome silicone wire |
| Origin | Made in USA |
Yes, the ProMag magazine is designed specifically for the Sig Sauer P365 9mm Luger platform.
You receive the 20-round magazine with the black oxide finish. No additional components or accessories are included.
The standard Sig P365 magazine holds 12 rounds; this 20-round option provides significantly greater capacity for range training, competitive shooting, or building redundancy in your magazine supply without changing firearms.
The black oxide finish provides corrosion resistance and durability during regular use. Like all steel magazines, proper care—keeping it clean and dry—extends its lifespan.
SKU: 115740051 • Weight: 0.25oz
