Magpul AMAG Magazine - Sig P320 - 9mm - 21 Rounds - Stainless Steel
or 4 interest-free payments of $9.49 with 
6 Magazines Per Order: Due to extreme volume, we are limiting sales of magazines to 6 per customer order. This applies to individual and bundled magazines. AT3 reserves the right to cancel any order over the 6 magazine limit.
- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Backed by Magpul Warranty! what it covers
Product description
Magpul AMAG 21 Round Magazine for Sig P320 – Stainless Steel Body with Windowed Design
Features
- 21-round capacity for Sig P320 and M17 platforms
- Stainless steel body for durability and consistent fit
- High-visibility controlled-tilt follower
- Stainless steel spring for reliable feeding
- Capacity indicator windows with round count markings
- Flared, removable floorplate for easy maintenance
- Paint-pen dot matrix for identification and labeling
The Magpul AMAG 21 SG9 is a full-capacity magazine built specifically for the Sig P320 platform, combining a stainless steel body with proven Magpul internal components. The rigid steel construction offers consistent lockup and durability, while the polymer follower and base components keep operation smooth.
Compared to standard OEM options, the AMAG adds visual round count windows and user-focused details like the dot matrix for marking and a tool-less removable baseplate. It’s a solid option for range use, duty setups, or anyone running higher-capacity P320 configurations.
Specifications
- Brand: Magpul Industries
- Model: AMAG 21 SG9
- MPN: MAG1465-SST
- Caliber: 9mm
- Capacity: 21 Rounds
- Material: Stainless Steel Body with Polymer Components
- Color: Silver
- Compatibility: Sig P320, Sig M17
What’s Included
- 1x Magpul AMAG 21 Round Magazine for Sig P320
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Warranty & returns
Backed by Magpul Warranty!
Magpul Warranty Information
If you ever experience an issue with a Magpul product at any time, regardless of where it was purchased, please contact us directly and we’ll do everything reasonable to help you.
To make a return, please take the following steps:
- BEFORE returning any products, please contact us first to receive an RMA number (Return Merchandise Authorization) and prominently write it on the outside of the package. Packages will not be accepted without an RMA.
- Include a note with your name, shipping address, phone number and email, RMA number, and reason for the return (including, if applicable, information about the firearm, ammunition, and usage environment for defective returns). Do not send ammunition.
- Wrap the item with quality padding and place it in the original packaging or in an appropriate box for shipping.
- A UPS shipping label will be provided in your shipment. If using the original packaging, remove or cover the original shipping label. Tape the preprinted return shipping label to the outside of the box. Drop package at an official or authorized UPS drop-off location.
- All refunds will be applied to the credit card used for the original purchase. You should allow one to two billing cycles for the refund to appear on your statement.
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.
