Magpul AMAG SG9 9mm Stainless Steel Magazine – Sig P320

Magpul AMAG SG9 is a stainless-steel pistol magazine designed for use with the Sig Sauer P320. It provides a durable, alloy-bodied magazine intended to feed 9mm cartridges reliably for range, duty, or training applications.

The AMAG SG9 addresses the need for a metal-bodied alternative where polymer magazines are not preferred. Its heat-treated, corrosion-resistant stainless-steel alloy body and polymer subcomponents are intended to give consistent feeding and easier maintenance. This magazine is suitable as a service or training magazine for Sig P320 platforms and works as a general-purpose spare or replacement magazine for those setups.

• Stainless-steel alloy body: heat-treated, corrosion resistant construction.
• Polymer high-visibility, controlled-tilt follower for reliable cartridge alignment.
• Stainless-steel spring designed for consistent feeding.
• Flared floorplate that is easily removable for cleaning and routine maintenance.
• Paint-pen dot matrix on the floorplate for magazine marking and identification.
• Capacity-indicator windows located on the spine, beginning at five rounds and marked in one-round increments.
• Made in the USA.

Specifications & Construction

• Material: Heat-treated stainless-steel alloy body with polymer subcomponents.
• Cartridge: 9mm (as listed in product attributes).
• Spring: Stainless-steel spring.
• Construction notes: Corrosion-resistant finish; flared removable floorplate for access to internals.

Compatibility & Intended Use

• Fits: Sig Sauer P320 (listed fitment).
• Intended use: Range magazines, duty/spare magazines, training and general-purpose replacement magazines for compatible P320 pistols.
• Typical setups: Primary service or duty pistol magazines, range packs, and training/load-up use with Sig P320 platforms.

This description is based solely on the provided product data and focuses on construction, features, and intended platform compatibility.