Matador Arms introduces the Mag-X (P320) AR-15 Magazine Adapter

Matador Arms introduces the Mag-X (P320) AR-15 Magazine Adapter
Matador Arms introduces the Mag-X (P320) AR-15 Magazine Adapter

U.S.A.-( The Mag-X allows the use of Sig-P320 pistol magazines in any AR-15 milspec lower receiver. No modifications are required to the lower or the magazine, and the Mag-X installs in seconds, enabling the use of Sig-P320 magazines. The Mag-X has a built-in magazine release and locks into place with the standard AR-15 catch. It is manufactured from aircraft-grade aluminum and has an anodized finish. The ejector and magazine catch are both steel.

The Mag-X is available for sale in both the United States and Canada. Made in Canada, the Mag-X ships to USA customers direct from Matador’s USA warehouse. MSRP is $149.99 USD, with special introductory pricing available for those who want to jump on this.

Mag-X (P320) AR-15 Magazine Adapter
Mag-X (P320) AR-15 Magazine Adapter

For more information on the Mag-X, P320, visit

  • Fits any standard AR-15 lower receiver.
  • No modifications required to your lower or magazine.
  • Installs in seconds, enabling use of Sig-P320 magazines.
  • Built-in magazine release for Sig-P320 style magazines.
  • Locks into place with the standard AR-15 catch.
  • Lightweight aircraft-grade aluminum construction; anodized finish.
  • Steel ejector and magazine catch.
  • Only compatible with mil-spec AR-15 lower receivers, combined with a 9mm upper with a Glock-cut bolt.
  • No last round bolt hold open.

About Matador ArmsMatador Arms

Matador Arms is a Canadian company known for bringing quality firearms accessories to the North American market through its focus on Quality, Price and Function.

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But will they have it for the 45 ACP??? My guess is no as it seems no one like to make things for 45 ACP for the P320. Just try and look for an IWB holster for the P320 in 45 ACP.

Ish Kabibil

Andrews leather


Safariland GLS….
Great holster, reasonably priced.

Graham Baates

Here’s a video look: