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P320 Aluminum Extended Magazine Base Plate +5, 9mm

$53.99

(5 stars)

P320 Aluminum Extended Magazine Plate – Strike Industries +5

More Capacity. Built for Speed.

Upgrade your SIG SAUER® P320 with the P320 Aluminum Extended Magazine Plate from Strike Industries. This magazine extension adds up to +5 rounds of 9mm capacity to compatible magazines. As a result, you can spend more time shooting and less time reloading.

Strike Industries machines the extension from rugged 6061-T6 aluminum. Therefore, it delivers excellent strength without adding unnecessary bulk. In addition, the slim profile keeps your magazine balanced and easy to handle.

The streamlined, no-snag design also supports fast, smooth magazine changes. It moves cleanly in and out of magazine pouches while providing extra surface area for a positive grip. As a result, you get better control during reloads.

Whether you compete, train, or spend long days at the range, extra capacity can make a difference. Fewer reloads help you stay focused on your shooting. Meanwhile, the durable aluminum construction stands up to repeated use.

P320 Aluminum Extended Magazine Plate Features
  • Adds up to +5 rounds of 9mm capacity
  • Precision-machined 6061-T6 aluminum construction
  • Slim, low-drag profile
  • No-snag design supports smooth handling
  • Provides additional gripping surface during reloads
  • Fits compatible 15-, 17-, and 21-round P320 9mm magazines
  • Designed with USPSA dimensional requirements in mind
  • Built for competition, training, and range use
Built for Compatible P320 Magazines

The P320 Aluminum Extended Magazine Plate fits compatible SIG SAUER® P320 9mm magazines with 15-, 17-, and 21-round capacities. Therefore, you can add capacity to several common P320 magazine configurations.

Strike Industries also designed the extension with USPSA dimensional requirements in mind. As a result, competitive shooters can build their setup around additional capacity while considering applicable match requirements.

However, always confirm magazine compatibility and current competition rules before use.

Durable 6061-T6 Aluminum Construction

A magazine extension needs to handle repeated loading, reloads, and regular range use. For that reason, Strike Industries uses precision-machined 6061-T6 aluminum.

The aluminum construction provides strength and durability while maintaining a streamlined profile. In addition, its solid construction gives the magazine extension the durable feel shooters expect from a performance-focused upgrade.

If you want additional capacity without unnecessary bulk, the Strike Industries P320 Aluminum Extended Magazine Plate delivers a clean and functional upgrade for your P320.

Magazine Capacity Restrictions

This product cannot be shipped to CA, CO, CT, DC, DE, HI, IL, MA, MD, NJ, NY, OR, RI, VT, or WA.

Please review all applicable state and local laws before ordering.

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Free shipping over $50

Texas Triggers – Return, Exchange & Cancellation Policy

Pre-Orders & Backorders — Cancellation

Orders for pre-order or backordered items may be cancelled for a full refund, provided the order has not yet entered the shipping and fulfillment process. Once an order has been processed for shipment, it is no longer eligible for cancellation and must follow the standard return process below.

Standard Order Cancellations

Cancellation requests for in-stock orders that have not yet shipped are subject to a 10% restocking and administrative processing fee. This fee covers payment processing costs, administrative time, and order preparation already completed. To request a cancellation, contact us immediately at info@texastriggerusa.com with your order number.

Return Eligibility

To be eligible for a return, all of the following conditions must be met:

  • The item must be in new, unused, and uninstalled condition.
  • Original packaging must be completely intact and unopened — items with opened packaging are not eligible for return.
  • For apparel and merchandise: all original tags must be attached and the item must be unworn and unused.
  • All original accessories, manuals, and components must be included.
  • You must contact us within 5 days of confirmed delivery to initiate a return.
  • You must ship the item back to us within 7 days of receiving return approval.
Non-Returnable Items

The following items are strictly non-returnable under any circumstances:

  • Any product that has been installed, used, fired, or assembled into a firearm.
  • Any product with opened or damaged packaging.
  • Apparel or merchandise with removed tags or signs of use.
  • Items returned beyond the 5-day contact window or 7-day return shipment window.
  • Pre-owned, used, or previously installed components.
Failed Inspection — Abandoned Items

If a returned item is received and fails inspection due to installation, use, damage, or non-compliance with our return policy, Texas Triggers reserves the right to deny the return and withhold the refund. In such cases, Texas Triggers also reserves the right to retain the item and is not obligated to return it to the customer. Customers will be notified of a failed inspection via email.

Restocking Fee
  • All approved returns are subject to a 25% restocking and processing fee deducted from the refund amount. This fee covers payment processing, inspection, repackaging, and inventory costs.
Return Shipping
  • Customers are responsible for all return shipping costs.
  • Texas Triggers recommends using a trackable shipping method and purchasing shipping insurance. Texas Triggers is not responsible for items lost or damaged during return transit.
Exchange Policy
  • Exchanges are subject to the same eligibility conditions as returns. If an exchange is approved, Texas Triggers will ship the replacement item upon receipt and inspection of the returned item.
  • If the requested exchange item is out of stock at the time of return receipt, a refund will be issued minus the applicable restocking fee. Texas Triggers cannot hold inventory for pending exchanges.
Refund Processing
  • Once a return is received and approved, refunds will be processed to the original method of payment within 7 business days.
  • Texas Triggers may, at its discretion, offer store credit as an alternative to a cash refund. Refunds will reflect the purchase price minus any applicable restocking fees.
How to Initiate a Return

To initiate a return or exchange, contact us at info@texastriggerusa.com with your order number, the item(s) you wish to return, and the reason for your return. Return instructions will be provided upon approval. Do not ship items back without prior written approval.

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