MAG-AD9

$179.99
(52 reviews) Write a Review
SKU:
001-SD MAG-AD9-GLOCK-9AND40-M
MAG-AD9
 

THIS MUST BE USED WITH A 5.4 OUNCE BUFFER OR HEAVIER WHEN USING A CARBINE SPRING. CLICK HERE FOR BUFFER

Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W Glock Magazines!  The Mag-AD series adapters install in seconds.  Boasting a last round hold open feature making them a breakthrough product and a must-have for law enforcement and civilian gun enthusiasts alike.

The Stern Mag-AD9 series adapters are made of aircraft grade aluminum, lightweight with ergonomic design.   

Note: These adapters require the use of a 9mm or 40S&W barrel, "depending on chosen caliber" and a Glock cut bolt.

 

Looking for a complete conversion kit?  We have you covered.
Click Here.

Already have a Colt Style bolt and want to use our system?  We have you covered.
Click Here

Don't Have a bolt, want one?  We have you covered.
Click Here

Don't Have a barrel, want one?  We have you covered.
Click Here

 

Technical Information:

⦁    Made in the U.S.A.

⦁    Constructed from 6061 T6 aircraft grade aluminum.

⦁    4140 NiB coated feed ramp.

⦁    Hard coat anodized type 3.

⦁    Sturdy Construction.

⦁    Ergonomic mag release.

⦁    Works with any mil spec ar15 lower receiver.

⦁     All gun components besides the Bolt and Barrel remain stock

Please visit the following link before purchasing to ensure compatibility with your setup.


compatibility

 

 

 

 

52 Reviews Hide Reviews Show Reviews

  • 4
    9 mm adapter

    Posted by Terry Patrick on Jan 13th 2020

    So far so good. First time out, two FTF, probably my reloads. Well built adapter. Looking at getting a 45 a piece adapter

  • 5
    MAG-AD9

    Posted by Anthony Davis on Jan 13th 2020

    Excellent product, American ingenuity at its best.
    Makes it easier to have a 9mm AR especially if you're on a budget!

  • 5
    MAD-AD9

    Posted by Luke Hoffman on Dec 25th 2019

    Get good mags and it’ll run good

  • 5
    Ordered the kit

    Posted by Unknown on Dec 10th 2019

    Ordered this in a kit and works perfectly so far. Installation is simple and has had 0 failures of any kind through 200+ rounds of factory, plated, coated or cast ammunition. Built heavy duty

  • 5
    MAG-AD9

    Posted by Ron M. on Dec 3rd 2019

    Works very well with every magazine I've tried. 100% function with 14 different loadings and 5 different size and/or brand mags. Well worth the money, with this and the Beretta 92 version I can pair any of my pistols with an AR style carbine.

  • 4
    Seems quality

    Posted by Jacob on Nov 25th 2019

    Works really well so far, only issue was upon initial installation I had an issue where I couldn’t cycle the action. But with some minor adjustments of the screws I was able to make it run smooth, overall would recommend

  • 5
    Mag-Ad9

    Posted by Michael M on Oct 28th 2019

    I have to say how pleasantly surprised I was with this mag adapter. To be honest, I didn’t have a ton of confidence on how smoothly this would operate. To my surprise, I didn’t have a single failure of any sort in my first range trip of about 200 rounds and that’s with magpul mags so that’s saying something!
    It’s going to take a little getting accustomed to the location of the mag release but it’s comfortable and makes sense. It is absolutely incredible that you can have a 9mm ar and switch to a bunch of different calibers with one Allen key and a new upper in a matter of seconds!

    Thanks Stern Defense,
    I’m overjoyed at the simplicity and effectiveness of this product especially paired with your bolt and barrel.

  • 5
    .40 S&W Glock Mags

    Posted by Ron Gilbert on Oct 24th 2019

    Polished metal fed ramp. Installed <15 mins ran 500rds cycles like a Singer Sewing Machine...

  • 5
    Love it, only had one minor issue

    Posted by John Lin on Oct 23rd 2019

    Love it. I think this is the only magazine adapter with last bolt open. Very easy to install. After installing it, empty magazines weren't catching and would just pull out. I had to hit the bottom of the magazine several times for it to seat. After that the magazines fit and seat perfectly. I wish there was a slight cant outerward to the magazine release button. It would feel more natural and save your finger tips after several releases.