SIG MPX Extended Base Plate
SIG MPX Extended Base Plate
SIG MPX Extended Base Plate
SIG MPX Extended Base Plate

Oscar Delta Co.

SIG MPX Extended Base Plate (+0)

$10.00 Sale Save

Add a bit of extra meat to your SIG MPX magazine with our SIG MPX Extended Base Plate. Our SIG MPX Extended Base Plate attaches securely to the base of your SIG MPX mag, adding an additional length of material to improve grip and aesthetic.

Compatible with the newest generation of SIG MPX magazines using the modular base plate. This item does NOT increase the capacity of your magazine, it is a purely visual and non-functional modification.

Perfect for less-than-free states with magazine capacity limits like California, Colorado, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Maryland, Massachusetts, New Jersey, New York, Oregon, Rhode Island, Vermont, and Washington.

What's in the box:

  • 1x SIG MPX Extended Base Plate

Flat rate $10 USD tracked shipping to the US - FREE over $75 USD subtotal for American customers!

After an order is submitted, it is estimated to take a minimum of 3-4 business days until your shipment is dispatched. Actual wait times may vary. Please reach out to us at if you experience any trouble with your shipment.

We currently ship to the United States, Canada, along with Central/South America and Europe.

How are your products made?

Each of our products are designed and 3D printed in-house using a high-strength polymer.

Are your products durable?

Our products are 3D printed out of a heat-resistant PLA+, often chosen in the 3D2A community for its durability and strength.

Can I put in a custom order?

If you're interested in putting in a bulk order or are looking to becoming a reseller, please reach out to us at!

Read more FAQs by clicking here.

Buy it with

AR Buffer Mount