Now shipping! HTA is pleased to announce the all new MBS 22 for the Ruger 10/22 is available for purchase. Scroll to the bottom of this blog post (just before the comments) or visit the "products" tab to add to your cart!
The MBS 22 is a radical deviation from "first gen" bullpup conversions in nearly every way. Our design departs from the typical left/right clamshell design common in many bullpup chassis in favor of an upper and lower two part assembly that's held together by pins and the factory takedown screw, rather than numerous pieces of hardware. The result is the fastest field strip of any bullpup conversion for the Ruger 10/22, a job that can be done in seconds. "But what about the trigger?" you may be wondering...


Perhaps the biggest complaint about bullpups is their triggers and it was for that reason that the entire MBS 22 concept was literally designed around a unique trigger linkage. This system was intended from the very first sketches to utilize mechanical principles to maximize performance in the finished product. Our design operates on leverage from an internal cam system to produce one of the best bullpup conversion triggers ever made, actually reducing the perceived trigger weight.
Beta testing has consistently shown a 25-35% reduction in pull force of the standard Ruger OEM trigger pack, from about 5 lbs. down to 3.5 lbs., when installed in the MBS 22. Not satisfied with merely reducing the weight, we also designed the linkage system to be take-up and overtravel adjustable to tailor the linkage to each specific trigger assembly. Even the spring weight of the trigger linkage is adjustable for unparalleled customization of a bullpup trigger system. Like our first Modular Bullpup System (MBS 95), a primary focus of our new 10/22 bullpup conversion is modularity and one of the interchangeable subassemblies is the trigger linkage itself. Aside from the cam actuated linkage, a "direct pull linkage" is also include which gives users the option for a more traditional 1:1 pull ratio, ideal for match grade and aftermarket triggers which are already light and crisp.

Externally, the modular concept is also visible in a few other areas. The knuckle guard is removable and the hollow grip can be used for storage with the guard in place. A removable shell deflector is included that, along with the ambidextrous controls, allows for left handed use. To fully tailor the MBS 22 to suit your needs, several M-Lok slots are located both fore and aft to provide convenient mounting points for accessories and slings, in addition to the integrated top and bottom picatinny rails. Additionally, the butt stock plate hides two more compartments, one of which is large enough to house a spare BX-1 magazine. The second compartment can be used to store tools or other gear.
Because the entire buttstock is its own module, it can be replaced with a collapsible stock module that offers an additional 1.75" to length of pull when extended on its steel guide rods, making it more comfortable for larger shooters. With this stock unit installed, barrels as short as 16.1" can be used legally without an SBR stamp in many jurisdictions (check state and local laws regarding overall length). The MBS 22 Mod 1 will feature this collapsible stock module.



As with our 90/22, this stock will work with .920" bull barrels and Ruger tapered barrels. The MBS 22 includes three bushing sets to fit a variety of other barrels as well. The handguard is hollow and will allow for up to 1.375" diameter suppressors to be used on barrels at least 9.5" in length for those looking to go the SBR route or install a Charger pistol. We are also very pleased to announce this model will work with the 10/22 Takedown series of rifles and Charger variants (SBR rules apply). If set up as an SBR with a 10" barrel and a suppressor, the MBS 22 equipped rifle will come in less than 23" long overall.
Shooters will appreciate the forward, ambidextrous charging handle, complete with bolt hold open grooves that can be disengaged with a slap of the palm. A trigger block safety is located in the grip area for quick engagement and the factory controls like the safety, magazine release, and bolt hold open are also still easily accessible at the rear of the assembly.

Please let us know if you have any questions and thank you very much for your business, interest, and support!

43 Comments
Charlie Wittmer
waiting on this product
Donovan
What would be the advantage of using a takedown in this? I presume you mean it will house one, but the takedown would be complete disassembly... Or what? Also, I want one. And 10 double stack mags for the HP bullpup. ??
High Tower Armory, LLC
Hello Donovan! There isn't a specific advantage of the Takedown in this stock beyond the advantage of toolless barrel removal for cleaning or easier stowing. The biggest thing is that this is the first bullpup we know of that will fit the Takedown model. Being that it's a bullpup, the complete unit is only slightly longer than a disassembled Takedown anyway, so even without the Takedown feature being instantly accessible, the MBS 22 is still plenty compact. If you have any other questions, let us know and thank you again!
Gino
Would this modular design support binary triggers in the future?
James
Will this work on a River Charger with a threaded barrel with a Dead Air Mask 22 suppressor with the correct tax stamps, and the Franklin BSIII binary trigger?
High Tower Armory, LLC
Hello Gino! This will be made compatible with the Franklin binary trigger systems and we are working on the same for our 90/22 as well! Thank you for your message!
Dennis Figuerado
I will buy 2 asap
DG
Is there potential for compatibility with open top recievers? Is this a "non-clamshell" design? Best 1022 bullpup design so far IMO, would love to see it launch!
High Tower Armory, LLC
Hello DG- we aren't sure on the open top compatibility but we could look into making that an option if it doesn't already fit. Keep an eye on our blog for updates!
Michael Sylvia
I have your Hi Point 9mm conversion and love the ease of disassembly. This looks like an even better system. I just hope it feels as good as your P90 version (love it except for all the screws). It would be great if you made it Franklin binary friendly. Are you still working on a better magazine for the 9mm Hi Point conversion?
High Tower Armory, LLC
Hello Michael! We appreciate your business! We are working on this stock and other accessories currently but the magazines are on the back burner for now since we are waiting for the YC9 magazine to be released to see if we can get it to fit our stock. Hope that helps and thank you again!
Pimpin McPlinkerson
This post is coming up on being a year old. Are there any updates to share?
High Tower Armory, LLC
Hello Pimpin! Thank you for your message and interest! We are still working on some tooling and a few other design elements but we are hoping to drop an in depth video on the stock soon. Stay tuned and thank you again!
Depps74
This looks and sounds great. I definitely want one. It's been a while since anyone here asked so any more info one an ETA?
High Tower Armory, LLC
Hello Depps! Thank you for your interest and patience! We are still expecting for release to be later this summer. We are nearly complete on tooling and will enter production in about 1-2 months after final testing. It may take a few more weeks or possibly even months to complete production and release so late summer is most likely, but we are doing everything we can to speed this along. Please let us know if you have any other questions and thank you again!
William pierce
When can I buy a mbs 22 stock?
High Tower Armory, LLC
Hello William! Thank you for your interest and patience! We are still expecting for release to be later this summer. We are nearly complete on tooling and will enter production in about 1-2 months after final testing. It may take a few more weeks or possibly even months to complete production and release so late summer is most likely, but we are doing everything we can to speed this along. Please let us know if you have any other questions and thank you again!
Stephen Walker
Where can I pre-order one of these babies? :)
High Tower Armory, LLC
Hello Stephen! Thank you for your interest and patience! We are still expecting for release to be later this summer. We are nearly complete on tooling and will enter production in about 1-2 months after final testing. It may take a few more weeks or possibly even months to complete production and release so late summer is most likely, but we are doing everything we can to speed this along. Please let us know if you have any other questions and thank you again!
Patrick
Please consider making it ambidextrous for left ejection 10/22s. I'm a lefty and would like to put a left eject 10/22 in one of these, but the bolt opening is not ambidextrous. This would make this product uniquely appealing for left handed enthusiasts! I would buy one immediately.
Patrick
Please consider making it ambidextrous for left ejection 10/22s. I'm a lefty and would like to put a left eject 10/22 in one of these, but the bolt opening is not ambidextrous. This would make this product uniquely appealing for left handed enthusiasts! I would buy one immediately.
High Tower Armory, LLC
Hello Patrick! Thank you for your message and interest! The MBS 22 will be left hand user friendly even with right hand eject 10/22's, due to the shell deflector and ambi controls like the charging handle and safety. That said, we could look into a left hand eject specific version of this, but that will depend largely on demand, since left hand eject rifles will require several new parts be made, which means more tooling, production processes, etc. and those increase costs dramatically. That can only be offset by strong sales and so far, left hand eject has had limited demand, so it's unlikely this will happen. This may change with more demand and consumer input, however. Please let us know if you have any questions and thank you again!
AL
Is the estimated launch still summer 2024 or has it been pushed back? For sure will wait to buy if its you think its coming out this year.
High Tower Armory, LLC
Hello Al! Thank you for your interest and patience! We are still expecting for release to be later this summer. We are nearly complete on tooling and will enter production in about 1-2 months after final testing. It may take a few more weeks or possibly even months to complete production and release so late summer is most likely, but we are doing everything we can to speed this along. Please let us know if you have any other questions and thank you again!
Kenneth
Any updates on this?
High Tower Armory, LLC
Hello Kenneth! Thank you for your interest and patience! We are still expecting for release to be later this summer. We are nearly complete on tooling and will enter production in about 1-2 months after final testing. It may take a few more weeks or possibly even months to complete production and release so late summer is most likely, but we are doing everything we can to speed this along. Please let us know if you have any other questions and thank you again!
Justin Case
Hello! Just throwing another comment on the pile that I’m looking forward to the new bullpup (and my first 10/22)!
High Tower Armory, LLC
Thank you, Justin! We are very excited about shipping this to customers soon. We appreciate your patience and kind remarks!
Bully Pup
Getting Hyped about the release!!!! Can you give any updates on launch date? Pictures look sick
High Tower Armory, LLC
Thank you Bully! We had a few production hang ups but we are on track for a release this fall. Sorry for the delay but we should be releasing a video on the features of the MBS 22 soon! Thank you for your patience and support! HTA
John
Any chance that this will be avaliable at brownells sweden?
High Tower Armory, LLC
Hello John and thank you for your interest! Although we have not discussed distribution of this product with Brownells yet, we are a vendor of other products for them so it is possible this may be added to their catalog. We will certainly bring it to their attention. We would also recommend contacting them about stocking this product so they know there is interest from foreign buyers. Please let us know if you have any questions and thank you very much for your interest! HTA Support
Chad
Count me in for at least one.
High Tower Armory, LLC
Thank you, Chad! We will have this out in the next couple months if all goes according to plan. We are in production on some of the final parts and are wrapping up tooling on a couple more. Thank you for your patience- we are making sure this product is worth the wait!
Jeff
This looks fun. Can't wait to pimp out a spare 10/22. Have there been any breakthroughs or lessons from the trigger work on this new 22 that will be incorporated into a future version of the MBS 95 to improve the trigger there ?
High Tower Armory, LLC
Hello Jeff and thank you for your message! We've made a few big changes to the trigger linkage design that have improved it dramatically over almost any other design, including the MBS 95. Notably, the linkages are now in modules that can be set to a specific trigger group, meaning you can get extremely good fit up with one trigger group (as long as it's all OEM) and still be able to swap in another trigger housing set up with another linkage module within seconds. The MBS 95 is more of a one size fits all solution, which offers a lot of simplicity and ease of installation, but has downsides as well. We've found a way to work around some of the limitations of this design by making the linkage elements removable, allowing them to be adjusted more easily and work better with a broader range of trigger types. The module that can be adjusted extremely finely is also the one that will reduce the felt trigger weight through leverage- we call this the Cammed Trigger Linkage. This module, as noted above, is only rated for OEM trigger assemblies, including the BX trigger. Because of the sensitivity of many aftermarket triggers/sears/hammers/springs, this module should not be used in conjunction with a trigger assembly that has been modified in any way. A second module, the Direct Pull Linkage, can be used with aftermarket accessories. This unit works more like a traditional bullpup linkage, transferring the trigger pull in a direct, rearward motion. This module does require a small standoff gap between the 10/22 trigger and the linkage, however, like our 90/22. The purpose of this is to prevent any inertia from the trigger linkage being transferred to the 10/22 trigger if impacted hard enough. There is a simple way to test for the proper spacing built into the kit to ensure the completed assembly has been correctly installed. Both trigger linkage modules can also be adjusted for overtravel, to make follow up shots as fast as possible. Even the trigger linkage return spring in our kit is adjustable, meaning you can set the weight of the installed trigger to your liking. Our goal really was to raise the bar on bullpup conversions with this kit and we did our best to pull out all the stops. We hope, if and when you get one, that you can see the care and attention to detail that went into every element of the MBS 22! Thanks for taking a look and please let us know if you have any other questions!
Dallen
Finally! This one looks even better than the original. Is this one compatible with drum mags (specifically the 110rd GSG drum)? The geometry below the receiver looks like it definitely could be.
High Tower Armory, LLC
Hey Dallen! Thanks for the question and kind remarks! This will work with all magazines for the 10/22, including drums like the GSG 110. Please let us know if you have any questions and thank you again!
Joseph
Really looking forward to this! Any update on the ETA?
High Tower Armory, LLC
Hello Joseph! Thank you for your message! We are looking at some time in the first quarter of 2025 right now but we're doing all we can to push that to be as soon as possible. Please let us know if you have any questions and thank you again for your interest!
CHRISTIAN
ETA on Release date? Do I need to remove the top rail from the receiver? Can it accept it with or without the receiver rail? Thank you so much.
High Tower Armory, LLC
Hello Christian and thank you for your interest in our stock! Current production schedule has us delivering the first kits in the next month or two. The top rail can remain in place, and in fact, it's recommended the OEM Weaver rail be used, since this will offer the most secure interface with the MBS 22. Please let us know if you have any other questions and thank you again!
ISMAEL Disz
Hi Andy, any updates on the MBS?
High Tower Armory, LLC
Hello Ismael! Thank you for checking in! We are expecting to begin emailing waitlist customers around the end of February. Production is all but complete and assembly work is starting this week or next. Thank you for bearing with us!
Ryan
Any idea how many people are on the waitlist vs how many kits will be available? I haven’t been on the waitlist that long but hoping to get in the first batch!
High Tower Armory, LLC
Hello Ryan and thank you for your interest! Our goal is to have enough material on hand to be able to email half of the waitlist on the first day. The first half would be from about September of last year until around December. We think we can get through that many in about 2 weeks or so and then we will move on to the next batch. This may change but we will certainly do all we can to pump them out as efficiently as possible. Please let us know if you have any other questions and thank you for your interest and patience!
Colton
I think everybody will agree with me. You are killing us... how much longer do we have to wait?!
High Tower Armory, LLC
Hello Colton- thank you so much for your continued patience and excitement for this kit! We had a somewhat severe setback in tooling but this is being resolved and we hope to have them available within the next few weeks. We had not anticipated this occurring, obviously, but we'll try to be as upfront as we can with the current status. Thank you for your patience and please let us know if you have any questions!
Alexander Sipes
I feel you man, good things come to those that wait. Looking forward to it hopefully soon
High Tower Armory, LLC
Thank you, Alexander! We appreciate your continued patience and kind words! We're getting close!
Moco
What is the minimum barrel length needed for the receiver to seat properly?
High Tower Armory, LLC
Hello Moco and thank you for your message and interest! The barrel needs to be at least 9" to reach the bushings at the front of the lower portion of the stock. If you want to suppress it with with a suppressor larger than .920 in diameter, you'll need closer to 10" to get beyond the bushings with threads. The 10.5" Ruger Charger barrel works perfectly and this kit was designed with that being a common barrel size in mind. Please let us know if you have any questions and thank you again!
Siege
Any ETA on this kit? I'm holding off on getting a trek22 for this. I have a 16 inch barrel will the mod1 buttstock need to be permanently extended/locked so it wont classify as an SBR? I also have a flat faced trigger from Tandemkross trigger kit and was wondering if it also will need to be replaced with the stock curved trigger?
Cl
Don't get the trek 22. You have to have an all original 10/22 to drop in that.
Alex
Are the tariffs going to effect the launch or the price of the kit?
High Tower Armory, LLC
Hello Alex! Thank you for your message and concern! The tariffs should not directly affect this product, no. It's made here in the US, either in house or from local shops almost entirely within our state (MN). It's hard to say if the down stream effects like increased cost in raw materials, labor, etc. will have any impact but at this point, we believe our current pricing model is sustainable in the short to mid term. If pricing were to increase markedly, we may need to reassess. Please let us know if you have any questions and thank you again!
CL
Growing concerned about the availability of this product. Is this still going to be released?
High Tower Armory, LLC
Hello CL and our sincere apologies for the delays on this product! We encountered some issues we had not anticipated but we are working through them and hope to have this available soon. Our goal is to sell the very best possible kit and we just aren't willing to sacrifice that vision in the name of expediency. We're hoping to launch in June currently, if all goes well on our next tests. Please let us know if you have any questions and thank you very much for your patience!
Vincent Proctor
How does your product compare to the TREK-22 stock kit? I certainly can appreciate the style difference, but in terms of quality, functionality, etc what’s your assessment??
High Tower Armory, LLC
Hello Vincent and thank you for your message and interest! We do not personally have much experience with the Trek-22 but, we feel this product is vastly superior in several areas. Functionally, the MBS 22 features a forward charging handle and shell deflector making it nearly perfectly ambidextrous. It also has the ability to be configured as an SBR more readily and practically, since the Trek 22 avoids SBR stamps via a body that is 26" long. Ours is shorter, meaning an SBR'd 10/22 can be made as short as 23", whiles till having room for a can inside the handguard with the Ruger 10.5" barrel. The MBS 22 also features a bushing system for the barrel. The Trek 22 is a "free float" barrel, which sounds good but is not a good solution for bullpups where the handguard and sight rail are effectively the same element. When free floated, the barrel will be able to wobble inside the handguard and by extension, any optics you put on them. The MBS 22 actually clamps to the barrel right in the midsection of the upper. This makes the barrel a spine of sorts that indexes the optic rail to ensure it holds zero better than products like the Trek 22. In terms of material/fit and finish, our stock will feature the same glass reinforced nylon polymer we've been using for over a decade, a product that's fairly universal in our industry. The high stress components like the charging handle, trigger linkage, and takedown pins are all QPQ treated steel for wear and corrosion resistance. We have had years of experience with the MBS 22 at this point and we are very confident this product will be the best in its class. We're hoping to be able to launch it very soon, with current estimates being June. Until then, we really appreciate your patience and interest!
Johnny Gunhands
Really excited about this, waiting patiently/checking twice a day for updates.
Ryan
Hey man, I've been waiting since December for this thing to be released. I went from checking daily to weekly to every couple weeks or so when i remember I have a barreled action stowed away in a closet that is waiting on its MBS. This is TORTURE!
Johnny Gunhands
Can we get another status update?
Christian
We are still awaiting on any release date. Also would you guys take payments/money transfer from PayPal.com?
Al
This is gonna be sweet, cant wait to get this SBR'd now with an Can on it.
Colton
Super eager for an update on this things progress
Bo
Any status updates on this product? Last reply from the company was 05/27/2025. Hoping for a Fall, or Christmas / Holiday release timeframe.
Your Killing me
A year or two more? im itching to get one of these fancy looking bodies :(
Vincent Proctor
It’s in stock. I hope you get emailed.
Al
Johnny, Yeah im in the same boat, as a lefty i kinda need a the features on this one but the SRUNA 22 looks better every day.
Johnny Gunhands
For real. I want one of these silly things so bad. Been looking at the SRUNA 22 as a possible alternative but it's a lot more expensive and it doesn't have the ambi charging handle which is honestly a huge selling point for the MBS 22 for me. I might have to make a decision soon if HTA stays radio silent much longer.
Al
Yeah radio silent for almost 2 months now. Must be a big issue or something, but glad they want to bring the best product to market.
Vincent Proctor
Not sure if you will get notified of this response but they are in stock!
Colt
Check your emails boys and girls. They are available!
Johnny Gunhands
Yeehaw! Vaporware no more! Hope it lives up to the hype.
UrBuildTactical
Got my shipping confirmation email this morning and now I am excited. I cannot wait to get this new set up. I have a brick of ammo just waiting to be used. I cannot wait to do my unboxing video and review on this. The wait is over
High Tower Armory, LLC
Thank you for your business and review, UBT! Here's the link to his video for anyone wanting to check out his channel! https://www.youtube.com/watch?v=GgfHYY627us&t=649s
Miles
Order placed! 22plinkster sent me. Will this work with a Vanquish 22 Integrally Suppressed 10/22 Barrel?
High Tower Armory, LLC
Hello Miles and thank you for your business! The Vanquish should work great since it is .920 diameter. Please let us know if you have any other questions and thank you again!
Ricardo Gonzales Jr
Will a regular 10/22 with a 18.5 barrel work with this and the aluminum shroud with adapter? Will the 16” barrel work? I don’t want an SBR. Or an AOW.
High Tower Armory, LLC
Hello Ricardo and thank you for your message and interest! Correct, with the Mod 1 only, and depending on your state's law, a 16" barrel will work and not be an SBR since the ATF measures OAL with the stock in the fully extended position. Some states measure OAL in the shortest possible firing configuration, however. As for the aluminum barrel shroud, this will work with the MBS 22, although it may block some of the M Lok slots, particularly with a shorter barrel or the longer shroud. For the MBS 22 we recommend the shorter shroud combination. If you have any questions, please don't hesitate to reach out and thank you again!
Ricardo Gonzales Jr
I just read where the 16.1 barrel will work. Will yalls shroud work with the 16.1 barrel?
