High Tower Armory Windowed 25 Round 10/22 Mags

HTA1022RM25-5

High Tower Armory is known for their P90-like bullpup stock kits for the Ruger 10/22 that have been on the market for a while, I actually have one of their kits that I used for one of my old 10/22s and I really like it. Well they’ve recently announced that they have their own windowed 25-round magazine on the way for the 10/22. Ruger has their popular BX-25 magazines for the 10/22, what makes the HTA RM-25 mags so different?

The biggest feature of the HTA RM-25 is the window along the side, it also has steel feed lips for reliability. The other feature with the the HTA RM-25 is the ability to configure it in two different modes, standard and finger assisted reload, or what High Tower calls rapid reload mode. Rapid reload mode basically allows you to remove the window and access the follower from the side to allow you to reload the mag much faster. They’ll work with their bullpup stock kits as well as with standard Ruger 10/22 rifles. They’re made in the USA and retail for $29.99, they’ll not for sale as of yet but they will be available in black and flat dark earth. Visit hightowerarmory.com and check out the video below for more details.

The HTA RM-25 is a windowed 10/22 magazine utilizes field proven concepts like steel feed lips, toolless disassembly, round counter, and finger assisted loading and combines them in a radically new way to offer users the hands-down most adaptive and reliable magazine on the market. The patent pending RM-25 features steel feed lips for a lifetime of use, incredibly durable polymer construction, and translucent windows to allow the shooter to know exactly how many rounds are left. To optimize performance in a variety of situations, the RM-25 can be configured in two modes: standard and finger assisted reload. In the standard configuration, the windows remain installed and the magazine is optimized for activities such as hunting and competition shooting where the ingress of the elements, dirt, or other debris could negatively affect the performance of the magazine at a critical time. When the windows are removed and the follower extension pin is installed, the magazine is in finger assisted reload mode and is optimized for high volume shooting activities including plinking and training where loading the magazine in a conventional manner takes longer and fatigues the loading hand. The RM-25 therefore allows the user to choose which configuration is desirable in any situation and convert without tools if necessary. Made in the USA.

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Ray I.

Long time gun enthusiast, archery noob, Mazda fan, Sci-Fi nerd, Whiskey drinker, online marketer and blogger. My daily firearms musings can be found over at my gun blog ArmoryBlog.com and Instagram.

Shoot me an email at ray.i@staff.thefirearmblog.com


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  • Nicholas Chen

    Very cool

  • Pseudo

    That P90 clone needs another dummy mag coming out of the top like a Type 99.

    • Smitty Werbenjagermanjensen

      The cool thing about the dummy mag, is that it’s pretty much a place for storage. You can actually store extra 22lr in it which is neat.

  • TheNotoriousIUD

    Kinda defeats the purpose as a compact SMG.

  • Martin Grønsdal

    How is this not patent infringement?

  • MAUSERMAN

    You can modify airsoft p90 stock to look the same as high tower one, and save yourself $270

    • Very true, I actually want to get an airsoft M249 to use with my Marlin 795.

  • De Facto

    Hm. These remind me of my Walther MP5A5 22lr mags.

    Also, Ray, if you have one of these stocks, would you recommend it? Have you done a review on it? I’ve been tempted to try a bullpup conversion for a while now and I just wasn’t sure if the hightower was worth it.

    • kipy

      I’m a big fan of mine. Definitely high quality.

    • Yes I would recommend them, they’re pricey but they’re probably the best bullpup kit out there for the 10/22. I’m working on a review of it, but so far I really like the kit.

    • That hightower stock is/was $225. Highway robbery, I tell you.

  • Swarf

    That gun looks deeply uncomfortable, if not impossible, to shoot.

    • Xtorin O’hern

      they are something…. got one for free from a friend and while its not uncomfortable its not pleasant either

  • Zebra Dun

    My Grandson’s already love shooting my 10/22 stock with a 25 rd mag they would never stop shooting it with this stock on it.

    • iksnilol

      DON’T DO IT! .22 IS RARE ENOUGH AS IS!

      • Zebra Dun

        I finally found a supplier at the feed store where I buy horse feed and hay, it’s from Mexico and though it is solids only it shoots great.
        It’s about $6.00 a box of 50 rds in a really neat box that has a frame inside that falls apart as you unload it and load the rifle.
        I’ve managed to buy so much of it I was able to break out my ACE .22 lr converter for the 1911A1 Gov model and let the kids shoot it!
        The oldest at 14 is already shooting the Colt in .45 acp. He learned on Standard FMJ ball.
        The youngest is learning now on .22 lr.
        I love Mexico!

        • Swarf

          Is it Aguila? I’ve seen that stuff around a few places and am curious about it’s quality.

          • Cymond

            The Colibri is super quiet in a 10.5″ AR pistol, and the Super-Colibri is insanely quiet in a 24″ Marlin 81. Sure, a bit 20 grain bullet at 700 fps isn’t impressive, but it must be heard to be believed. When my stepfather mocked it, I stepped into the next room, fired a round into a phone book, came back, and ejected the still-smoking case. He hadn’t heard it over the TV. The look of shock on his face was priceless!

            Oh, and the 60 grain Sniper Sub Sonic is interesting stuff, too. Supposedly, it penetrates better than traditional 40 grain supersonic ammo. Many suppressor companies warn against it because it’s unstable in a 1:16 twist barrel (should be 1:9), and one test I saw indicated that it was actually louder than CCI Standard Velocity in a suppressed gun. HOWEVER, it is the ONLY ammo that is reliable in my 1970s Stoeger 22lr Luger. It’ll fire entire magazines of SSS without failure, while jamming on literally every shot if loaded with anything else.

          • Swarf

            Very interesting, thanks for the info.

            I think the most impressive part is that you found something useful to do with a phone book.

          • Zebra Dun

            It is indeed Aguila 22 superextra Eley prime Bala Cobrizada 40 gr solids.

            I have run through about 250 rds with the grand son’s and have not had a failure or stoppage caused by the ammo.
            It hits accurately and reliably once sighted in without deviation with iron sights or a scope. Placing every shot at 50 yards with a scope inside a 1 inch group.
            I have fired it through a Ruger 10/22 also a 1911A1 Gov Model with an Ace .22 conversion kit on my .45 and shot it while hunting squirrels with a scoped bolt action revelation 115 rifle getting head shots.

            In my humble opinion it is as good and maybe better than some brands of .22 lr I have found.

            Once a month I buy horse feed and hay and grab a box or two

            I would not hesitate to buy a large lot of this if it is offered by the feed store owner.

            My only regret he cannot get Hollow points.
            I recommend it.

  • Taofledermaus

    I wonder if that company gave me any credit for coming up with the concept of stuffing a 10/22 inside a P90 stock and developing the complex trigger linkage? lol

    • Nashvone

      If you’re asking, my guess would be no.