DuraMag Stainless Steel AR15 Magazine - 223/5.56/300 Blk


1 review Write a Review
$24.00 - $28.00
$24.00 - $28.00


The 5.56/.223/.300BLK DURAMAG SS™ is designed for serious shooters who require the most out of their magazines so when performance and durability are paramount, make the switch to DURAMAG SS™ and never look back.

Constructed from premium 410 Stainless Steel for maximum durability. This material, coupled with advanced interior and exterior geometries, ensure ultimate reliability and feeding. DURAMAG™ will not flex or swell like polymer and are safe for extended storage while loaded without any add ons. These magazines utilize our T-360™ coating to ensure not only incredibly smooth performance and ease of loading, but also product longevity through the harshest conditions. These are the ultimate magazine of choice for shooters that are running 300 Blackout especially round with long load length or even the heaviest of sub-sonic loads.

  • 410 STAINLESS STEEL body is overbuilt for hard use
  • LIPLOCK technology keeps rounds secured and in proper alignment
  • ADVANCED GEOMETRY FOLLOWER remains level for consistent feeding
  • T-360 total coating technology covers the entire magazine, inside and out
  • EVERFLEX anti-fatigue spring technology ensures long life and ultimate reliability
  • POST & HOLE adds strength, durability and robotically welded precision



The weakest link in polymer magazines is one invisible to the naked eye. Polymer magazines have a strong affinity to attract moisture and will absorb it into their molecular structure when exposed to ambient air. This moisture within the polymer reacts constantly with surrounding environmental factors. The vapor pressure within the polymer increases to equal the vapor pressure of the surrounding environment until equilibrium occurs. This is referred to as polymer moisture equilibrium or PME.

When an environment of hot and dry air surrounds a wet hygroscopic polymer element, the vapor within polymer exits to the atmosphere, drying out the polymer. In other words, the polymer becomes dry and will deform from its original design and lose its flexibility. The opposite is also true, when the moisture within the polymer is cooled near or below the freezing point, the moisture within the polymer will freeze and the polymer will crack. There have been countless reports of polymer magazines shattering when dropped on a hard surface. Aluminum and stainless steel do not have an affinity for moisture. Any moisture gained through condensation or immersion remains on the surface and is easily removed via evaporation or simply wiping it off. No moisture is absorbed into the metal.

Further protection is provided by the C Products Defense proprietary coating T-360™, which bonds at the molecular level and will never wear off. The T-360™ coating process also decreases friction and increases lubricity inside and out. The result is that even when using the dirtiest ammunition,  DURAMAG™ magazines will effectively resist dirt or dust accumulation, allowing flawless operation and reliability.


Extra Information

223 Rem

    1 Reviews

  • Posted by Kaden on 2021 Dec 17th


    DuraMag Stainless Steel AR-15 Magazine - 223/5.56/300 Blk (5/30 Rounds)

    Save your money these Duramags are garbage. I bought 4 of these and it was a complete waste of cash, they don’t pin these mags instead duramags are crimped at 5 rounds which I did not know when I bought them. Because they are crimped the track that the rounds sit on get stuck in the crimps every time you load 5 rounds in. Not 1 of these mags would feed properly save your cash and go another route. Cheers