Stag Arms 9mm Rifles

Model 9T

Stag Arms announced the introduction of their first 9mm carbines. The Model 9 and Model 9T are AR-15 style guns with adjustable buttstocks, charging handle and other features typical to the platform.

The guns use Colt 9mm AR-type magazines, Stag states the guns have been designed from the “ground up” for the cartridge. The guns have magazine wells designed for the 9mm mag and do not simply use drop-in blocks in a standard 5.56 magazine well. Also, the hammer, magazine catch and buffer are all specifically designed for the 9mm.

Model 9L

Stag states the bolt and carrier are integrated into a single unit. The 16″ heavy barrel has a 1:10″ twist.

According to Stag,

The Model 9 and 9T have different configurations. The Model 9 has a railed gas block and drop in Diamondhead VRS-T modular handguard with no sights. The Model 9T is the tactical version with a free floating 13.5” Diamondhead VRS-T modular handguard and aluminum Diamondhead flip up sights for faster target acquisitions. Both rifles will accept the Diamondhead rail sections for extreme customization.

Like many Stag rifles, these guns can be had in right- and left-handed configurations. The MSRP for these rifles are:

  • Model 9 – $990
  • Model 9, left-handed – $1,025
  • Model 9T – $1,275
  • Model 9T, left-handed – $1,295

Richard Johnson

An advocate of gun proliferation zones, Richard is a long time shooter, former cop and internet entrepreneur. Among the many places he calls home is


  • gb7

    Ok, 9mm AR’s are the new hype. Is there any reason why none of the big names are making these guns to take Glock mags?

    • iksnilol

      Make your own.

      Not that hard to make a closed bolt blowback gun. You could do it for cheap, a STEN barrel costs about 100 bucks , make a magwell to take the mags of your choice out of sheet metal. Attaching an AR buffer tube to attach an AR stock isn’t that hard.

      Or you could go the pistol route and use a pistol barrel and a SIG arm brace for a compact PCC.

      Read this:

      Just add a SIG arm brace and you can have a short gun without requiring a tax stamp. Also since it is cheap you won’t miss it that much after a DGU. If you go the pistol route you could probably do it for about 300-350 (100 for barrel + 130 for arm brace leaves 70-130 for materials and tools).

      • ozzallos .

        It is that easy but manufactures want you to buy their overpriced carbines and proprietary mags.

        • iksnilol

          Everything is easy as long as you take one step at a time.

          Oh I am so going to write that one down. Yeah, it’s pretentious but I don’t have that many quotes.

          Forgot to mention, with the overpriced gats you get a guarantee it won’t blow up. With homemade guns, not so much. But it’s perfectly safe as long as you use your head.

    • Jared

      Lone Wolf makes a pretty nice 9mm AR15 that takes Glock mags.

      • Andrew

        I like mine a lot.

  • big daddy

    For me a full size 9mm AR is a waste. I had one and traded it off to make it a pistol with a 8.5 barrel with a Vortex flash hider. Lucky for me the SB15 came out. With standard 9mm ammo the long barrel is useless, on some ballistic reports I have read the longer barrel actually slows the bullet down or does not increase the velocity enough to add the extra weight and length. As a rifle it felt slow and awkward, as a pistol it is the most fun gun I have, light, low recoil and it eats any ammo. It’s fast, accurate and with the right ammo pretty deadly in tight places if you want to retain your hearing and vision for HD. The gas block is unnecessary why add it? As is the heavy barrel, a simple free float handrail would have been a better idea. I would think the faster twist would help stabilize heavier bullets out of that long barrel though, CMMG also uses a 1:10, Yankee Hill a 1:14.

    • bbmg

      Have a look at BBTI:

      For most loads tested, it would seem that a rifle length barrel would not justify the additional bulk and weight in terms of fps gain.

      • Zebra Dun

        I believe such was found with the .45 ACP fired from barrels longer than ten inches actually slowed the round down.

        • bbmg

          Make the barrel long enough and it’s almost like having a suppressor fitted, it’s the diesel effect turned upside down 🙂

      • big daddy

        That’s one of the sites I use. I would think if one was going to use this as a rifle maybe a 115 +P+ round would work best taking advantage of a higher velocity lighter round.

  • Zebra Dun

    I often wondered why the M-1 Carbines were not 9 mm caliber, perhaps to prevent adding one more caliber yet the .30 carbine was just one more caliber added.
    I could see an M-4 platform in 9 mm but that long barrel is a waste of space.

    • iksnilol

      Probably because 30 carbine is more powerful than 9mm (I think). They could probably have just made it in .45 acp to simplify logistics OR they could have made it in 7.62×25 and converted their 1911s to 7.62×25. The latter option would have given them much farther range but would never happen (giving up .45 ACP?! Impossibru!).

      Make it with a 10 cm/4 inch barrel and a telescopic suppressor and you would have a really short barrel assembly. Probably so short that the handguards would cover the suppressor+barrel.

      • dp

        Yes, the 7.62×25 could be managed in blow-back if not fired full auto. Probably best option all around.

        • iksnilol

          Or you could just stick in a 5.56 sabot in the 30 carbine case. I wonder how well that would work.

          The action is sorta not relevant since the M1 Carbine is gas operated (I think).

        • Cymond

          What’s wrong with blowback? I think the PPSh-41 & PPS-43 were blowback operated.

  • Krill

    STAG announced they were intending on releasing short barrel rifle versions at some point, likely with 14.5, 10, and 8″ barrels.

    I rather like the look of these rifles, especially the Model 9T. An excellent review was written in Guns and Ammo by Eric Poole and Sean Utley, who shot the right and left hand models, respectively. Both gave it some good reviews. I’m looking forward to getting one of these.

  • dp

    Its ok, but it needs to be in .30 carbine, if you want to call it ‘carbine’.

    • Christian Hedegaard-Schou

      Ummm.. That’s not where the word “carbine” comes from.

  • floppyscience

    I will never understand the point of a railed gas block that isn’t receiver-height.