free shipping on orders over $99

phone: 860-225-3548


AR-15 20 Rd .223/5.56 Stainless Steel Magazine

8 reviews Write a Review
Adding to cart… The item has been added
We cannot ship this item to: CA, CO, CT, HI, IL, MD, MA, NY, NJ, RI, VT, WA or any location where these magazines are prohibited by local, state or federal law.
  • Free Shipping Over $99

  • Limited Lifetime Warranty

  • Safe Payments

  • Amazing Selection

We cannot ship this item to:  CA, CO, CT, HI, IL, MD, MA, NY, NJ, RI, VT, WA or any location where these magazines are prohibited by local, state or federal law.

Stainless Steel Body:

Our AR-15/M4/M16 Stainless Steel magazines are constructed with the highest levels of quality that guarantees durability and longevity! Our magazines are manufactured 100% start to finish in the USA using “.020” gauge 410 Stainless-Steel Alloy that is heat treated for superior strength, and lasting endurance. Their Stainless-Steel construction means they won’t swell in heat or crack in the cold, making a more reliable alternative to polymer magazines. This is done all while maintaining that undeniably good look.

Available Coatings:

Our durable, wear-in, not wear off, coating (Marlube) was developed directly from our aerospace roots. These Marlube coatings offer supreme performance, protection, and lubricity for your magazine. The more you use it, the better it performs. Our Stainless-Steel AR-15 mags come in two colors, Black Marlube as well as Flat Dark Earth. These Marlube coatings offer supreme performance and protection both to yourself and to your magazine.

Your #1 choice for reliability, durability, and superiority!

Assembly Components:

  • 410 Series Stainless Steel Body, Heat Treated
  • Chrome Silicon Springs
  • Enhanced Anti-tilt Polymer Followers with PTFE
  • 300 Series SS Floor plate with Black Oxide Coating for Corrosion Resistance
Our Limited Lifetime Warranty covers defects in materials and workmanship under normal use, for ASC branded products with proof of purchase. ASC will exchange it for identical product or issue an ASC credit.

8 Reviews

  • 5
    20rd ss mag orange follower

    Posted by lawrence a love on Feb 14th 2023

    after looking and using P-Mag... not impressed. so i went back to metal from the old military use days (as i have seen them take loads of damage and somewhat function. To top it off this BRAND is so far SUPERIOR than any Polymer product.

  • 5

    Posted by Drew on Jan 11th 2023

    I was looking for a 20 round mag to use at the range from a bench rest. I gave these a try from ASC. I'm really happy with these mags. They're really good quality well made rugged stainless steel construction. They have a slick black coating and the follower moves smoothly up and down in the housing. They're priced right too so you can grab a few extra just in case.

  • 5
    20 rd stainless magazines

    Posted by Matt Hampton on Jul 8th 2022

    Great customer service, quality of magazines was excellent; no problems encountered with feed and function

  • 5
    20 rd mag

    Posted by Rob on Jun 7th 2022

    Ordered 6 and all have proven excellent in fit, finish and function. No complaints at all.

  • 5
    Do it

    Posted by Fargo on Apr 5th 2022

    Steel mags . Sturdy dependable what more could you ask for?

  • 5
    Stainless steel magazine

    Posted by Richard Jensen on Sep 28th 2021

    Very nice fits great, I've already ordered 2 more and will be ordering more

  • 5
    Excellent Magazines

    Posted by Douglas on Jul 8th 2021

    I have several of these, and never had a malfunction. The more you buy, the lower the cost per magazine. ASC makes things really easy.

  • 5
    20 Round Steel Magazine

    Posted by Randy on Oct 23rd 2020

    Quality product...durable, well the traditional look and fit...fits my Smith & Wesson AR-15 perfectly...after 400 rounds through 8 of these magazines...not one problem to report...great product...will be purchasing more.