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Cross Armory SAFE MAG – MIL-SPEC only


Safe Mag

Cross Armory SAFE MAG – MIL-SPEC only


  • Fixed magazine locking system for MIL-SPEC AR-15 and M4 rifles
  • Automatic Magazine Release when upper and lower receivers are separated, no need to push a button
  • QUICK and SAFE fixed magazine release device
  • SAFE MAG prevents the removal of the magazine from your AR-15 or M4 rifle without disassembly of the action when properly installed
  • QUICK, EASY installation
  • RELOAD EASIER when separating the upper from the lower receiver

In stock

Cross Armory’s SAFE MAG is a modification, designed in California, for weapons in regulated states that require fixed magazines. The Cross Armory SAFE MAG works by releasing your magazine instantly when you separate the upper and lower receivers of your AR-15 or M4, without having to press a button.

Cross Armory’s SAFE MAG is intended to be consistent with the fixed magazine laws which state that your weapon must have a “fixed magazine” which has been defined as “an ammunition feeding device contained in, or permanently attached to, a firearm in such a manner that the device can not be removed without disassembly of the firearm action.” The firearm action of an AR-15 and M4 is housed in the upper and lower receivers. Separating the upper and lower receiver to release your magazine disables the firearm action.

Cross Armory’s SAFE MAG also allows for insertion of a new magazine when the upper receiver and lower receiver are closed, without bending or stressing the hardware of the weapon or of SAFE MAG.

Cross Armory’s SAFE MAG is a reliable, durable and easy-to-install magazine release. When paired with the Cross Armory’s QUICK PINS, magazine changes can be performed efficiently and with a minimum of inconvenience to the user.


  1. Mario

    I bought a safe mag and it wasn’t holding my mag up far enough to chamber a round without jamming. I did adjust the screws but that wasn’t working eather. I do have a ar15 pistol, just wanted to let you guys know. Thank you

    • Richard Berwick

      Very sorry we didn’t respond more promptly. There are a few reasons this may be happening. It’s probably best that you give our tech support a call, 760-710-3101 ext 2. They can talk through the issue with you to see what adjustment will be best. If, for some reason, we are unable to help you to get it working correctly you are welcome to return it for a full refund – but I doubt this will be the case.

      – Cross Armory

  2. Adam S

    I have the same problem as Mario above. And there are numerous identical complaints on YouTube videos about the product. I own their other products and they are excellent. This one needs a redesign; the springs probably need to be replaced with shims.

    • Savannah Cross

      Hey Adam, thanks for letting us know you are having trouble. We actually have several solutions to address this issue. It may also have something to do with your specific build. We created Safe Mag 2 for that very reason. It is more flexible for non-MIL-SPEC and custom builds. We will email you instruction and/or get you a refund or exchange right away. We want all of our customers to be 100% satisfied and we guarantee all of our products, or your money back.

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