SIG P320 Mag Coupler With Mags
SIG P320 Mag Coupler
SIG P320 Mag Coupler With Mags
SIG P320 Mag Coupler
SIG P320 Mag Coupler

Oscar Delta Co.

SIG P320 Mag Coupler

$16.00 Sale Save

Buy 2+ get 5% off | Buy 4+ get 10% off

Clamp two SIG P320 magazines together using our simple and durable SIG P320 Mag Coupler. Our SIG P320 Mag Coupler is intended for use with pistol caliber carbines.

Insert your mags into the SIG P320 Mag Coupler, tighten the included bolt until the mags no longer shift, and you're ready to shoot. Enjoy quicker reloads and increased carrying capacity for your rifle, perfect for home defense or some light fun on the range.

The SIG P320 Mag Coupler includes a bolt and thread, securely holding your magazines in place; our grip tape ensures that your magazines don't shift while in use.


  • Compatible with any carbine or rifle that accepts standard width SIG P320 magazines.
  • Ensure there is 30mm or 1.2 inches of spacing below your mag well for installation. Our couplers may not work with flared mag wells or non-standard width magazines
  • Our mag couplers may be compatible with replica airsoft magazines, however have not been specifically tested.

What's in the box:

  • 1x SIG P320 Mag Coupler (with M4 nut)
  • 1x M4 bolt

Flat rate tracked $10 USD shipping to the USA - free over $75 USD subtotal. Other destinations available at checkout.

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. Reach out to us at if you experience any trouble with your shipment.

Shipping rates for global customers available at checkout. Our products are declared as firearm accessories. To avoid delays and confiscation, ensure the legality of importation and use of our products prior to submitting an order. We are not responsible for customs seizures.

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.

Our products are manufactured using 3D printed thermoplastic. Because of the limitations of our material and manufacturing process, proper care is required to keep your products working correctly.


Our products can weaken and deform under excess heat. This usually isn't an issue outside and during regular use, however extremely hot environments such as parked vehicles may lead to failures.


Proper care should be taken when installing our products. Always read the product description fully to understand the recommended installation procedure to avoid issues.

Buy it with

AR Buffer Mount