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TangoDown ARC 30 Round Magazine 5.56x45mm NATO

In stock in approximately 4 weeks.


Two-piece modular construction allows TangoDown to create the ultimate magazine for many reasons

  Due to state law restrictions, high capacity magazines cannot be shipped to the following states: CA, CO, CT, DC, HI, MD, MA, NJ, NY. It is the customer’s responsibility to know and abide with state or local gun laws.

A basic problem for plastic magazines is that they have to have a constant curved interior to be molded in one piece. There is no other way. But the magazine well of the M16/AR-15 weapon system is straight. So much compromise has to be reached from a design standpoint to make the two work together.

So side effects of magazines not dropping free, are often seen. The optimum solution would be a straight upper section to properly present cartridges through the magazine well, and a constant-radius lower section to accommodate remaining ammunition. However, this design has been impossible to produce in polymer… until now.

The patent pending two-piece modular construction allows TangoDown to create the ultimate magazine for many reasons. In addition to the proper magazine form, they are able to achieve maximum strength and integrity when the components are molded.

Precision molding is achieved much easier on two small parts versus one large one. TangoDown can also mix materials, impossible with conventional plastic magazines. They can offer transparent-solid color lowers/high tensile strength upper sectioned magazines that avoid the brittle feed lip issue of all-single material construction.

Modular construction makes perfect sense for the unprecedented strength- TangoDown eliminated the removable floor plate, so the magazine becomes a five-sided box. ARC Mag survives the impact that crushes metal magazines.


  • Length: 7.62"
  • Weight: 7 oz
  • Cartridge: 5.56  x 45mm NATO/ .223 Remington

ARC Mag takes full advantage of the latest polymers available from the aerospace industry- materials impervious to the effects of solvents & lubricants. After molding, TangoDown permanently bonds the two sections together with advanced adhesives during manufacturing, so no disassembly is possible, or required.

ARC Mag has a unique low-friction semi-floating follower that is slotted to allow for easy magazine cleaning. Just dunk the ARC Mag in hot soapy water, rinse and invert to drain. That’s hassle-free maintenance. ARC Mag also features a premium stainless steel spring. Life expectancy for this spring is 100,000+ cycles.

TangoDown's design team created a magazine that could be handled by the operator in any condition- note the aggressive ridges front and rear. They allow a positive purchase when seating the ARC Mag. The deep waffle pattern on the magazine’s sides assist in rapid extraction from mag pouches. Every surface on the ARC Mag was given careful consideration to help out the operator. Weight: 4.48 oz

EXPORT NOTICE: This is an item controlled for export by the International Traffic in Arms Regulations (ITAR). These controls take the form of export regulations and license requirements.

As part of the express consideration provided for receipt of TangoDown's goods, technical data and/or services, you, the customer, acknowledge that the export, re-export or other transfer, directly or indirectly, of the goods, technical data and/or services provided by TangoDown in violation of U.S. law is prohibited.

Customers acquiring ITAR goods, technical data and/or services from TangoDown shall be responsible for obtaining any necessary U.S. or other government authorization required to ensure compliance with applicable export laws.

State Restrictions on Large-Capacity Magazines:
High capacity magazines are not legal in all areas of the U.S. It is the responsibility of the customer to know and abide with state or local gun laws.

Please check your local laws for restrictions before ordering Magazines.
California10 round limit
Colorado15 round limit
Connecticut10 round limit
District of Columbia10 round limit
Hawaii10 round limit
Maryland10 round limit
Massachusetts10 round limit
New Jersey10 round limit
New York10 round limit

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