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3/28/2026 1:14:29 PM EDT
[Last Edit: Sleazy-E][Edited]
Was looking at Manticore's Instagram and they're posting teaser shots of something new.

" />

Then this was posted today...
" />

Sure does look a lot like the business end of the colonial marines  M4A1 Pulse Rifle.  Due date is April 2, so hopefully not getting April fooled.

ETA- God I would like a pulse rifle.
3/28/2026 6:10:59 PM EDT
[#2]
Oh my! Bad Attitude makes these

Weyland Yutani Lower Receivers
3/29/2026 11:04:08 PM EDT
[#3]
It is not an April Fools joke.

Been working on this passion project for quite a while.

The product will launch Thursday April 2nd.

Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
3/31/2026 8:52:49 PM EDT
[#4]
Just saw it on IG, looks pretty sweet. Interested when the details drop.
3/31/2026 9:02:09 PM EDT
[#5]
Here!!  Take my money!!!
4/1/2026 5:38:48 PM EDT
[#6]
First batch drops Thursday April 2nd (tomorrow) at 2pm EST

Based on response, we expect the first batch to sell out quickly...if you miss it, just sign up for in stock notification and we will follow up with an ETA on the next batch as soon as I have good info.  

Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
4/1/2026 6:02:13 PM EDT
[Last Edit: Stonia][Edited] [#7]
Did Desert Tech ever release the integrated round counter for their Quattro?

Quattro 15 Shot Counter Prototype
4/1/2026 11:17:03 PM EDT
[#8]
Quote History
Originally Posted By Stonia:
Did Desert Tech ever release the integrated round counter for their Quattro?

https://www.youtube.com/watch?v=A_ppKE2DYYw
View Quote

That would be amazing. Get this thing even further cloned
4/2/2026 11:01:50 AM EDT
[Last Edit: Manticore_Arms][Edited] [#9]
I have been talking to Desert Tech about the Ripley Rail since SHOT 2024 and was aware of the round counter for the Quattro back then, well before it was made public.    

It hasn't shown up in the marketing yet, but we have an in house piston driven Quattro lower build with Ripley Rail that is a sight to behold.  

If this goes as big as I am hoping, we have an exciting product roadmap ahead.  

Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
4/2/2026 11:06:58 AM EDT
[Last Edit: Stonia][Edited] [#10]
Quote History
Originally Posted By Manticore_Arms:
I have been talking to Desert Tech about the Ripley Rail since SHOT 2024 and was aware of the round counter for the Quattro back then, well before it was made public.    

It hasn't shown up in the marketing yet, but we have an in house piston driven Quattro lower build with Ripley Rail that is a sight to behold.  

If this goes as big as I am hoping, we have an exciting product roadmap ahead.  

Sven
Manticore Arms
View Quote



I do believe I'd like to see that.

Eta, if that somehow fit with an IAR heat sink, icing on the cake.  Doesn't look like it would as is though?
4/2/2026 1:13:45 PM EDT
[#11]
Quote History
Originally Posted By Stonia:



I do believe I'd like to see that.

Eta, if that somehow fit with an IAR heat sink, icing on the cake.  Doesn't look like it would as is though?
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By Stonia:
Originally Posted By Manticore_Arms:
I have been talking to Desert Tech about the Ripley Rail since SHOT 2024 and was aware of the round counter for the Quattro back then, well before it was made public.    

It hasn't shown up in the marketing yet, but we have an in house piston driven Quattro lower build with Ripley Rail that is a sight to behold.  

If this goes as big as I am hoping, we have an exciting product roadmap ahead.  

Sven
Manticore Arms



I do believe I'd like to see that.

Eta, if that somehow fit with an IAR heat sink, icing on the cake.  Doesn't look like it would as is though?



We are running it with a KAK double chrome lined heavy 10.3" barrel:

https://kakindustry.com/govt-contract-clone-ar-15-barrel-5-56-nato-10-3/

I doubt the IAR heat sink would fit, nor is there a source of them I aware of, but there doesn't need to be...we can just design a finned aluminum heat sink ourselves that works with the forend and whatever barrel profile we want.

I had not even considered doing a heat sink, but man, with the heavy barrel, piston system, and a heat sink and 53 round quad mags on tap, that would be the ultimate overwhelming firepower setup, wouldn't it?  

P.S.  I am swamped with getting the overview and installation/sighting in videos done right now, but when I get a chance I will post up pics of the various builds we have in house for showing what you can do with the Ripley Rail.

Sven
Manticore Arms

Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
4/2/2026 2:35:19 PM EDT
[#12]
Quote History
Originally Posted By Manticore_Arms:
I have been talking to Desert Tech about the Ripley Rail since SHOT 2024 and was aware of the round counter for the Quattro back then, well before it was made public.    

It hasn't shown up in the marketing yet, but we have an in house piston driven Quattro lower build with Ripley Rail that is a sight to behold.  

If this goes as big as I am hoping, we have an exciting product roadmap ahead.  

Sven
Manticore Arms
View Quote

4/2/2026 3:28:23 PM EDT
[#13]
Ripley Rails are live on the Manticore webstore.

Sorry I don't have anything posted in our Dealer forum with more details yet, working on getting the information videos done.

This previous weekend was a bad time to get food poisoning and lose a few days of work!  

Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
4/2/2026 6:29:23 PM EDT
[#14]
Quote History
Originally Posted By Manticore_Arms:
I have been talking to Desert Tech about the Ripley Rail since SHOT 2024 and was aware of the round counter for the Quattro back then, well before it was made public.    

It hasn't shown up in the marketing yet, but we have an in house piston driven Quattro lower build with Ripley Rail that is a sight to behold.  

If this goes as big as I am hoping, we have an exciting product roadmap ahead.  

Sven
Manticore Arms
View Quote


Which piston system are you using?
4/2/2026 9:07:58 PM EDT
[Last Edit: Manticore_Arms][Edited] [#15]
Quote History
Originally Posted By Stonia:


Which piston system are you using?
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By Stonia:
Originally Posted By Manticore_Arms:
I have been talking to Desert Tech about the Ripley Rail since SHOT 2024 and was aware of the round counter for the Quattro back then, well before it was made public.    

It hasn't shown up in the marketing yet, but we have an in house piston driven Quattro lower build with Ripley Rail that is a sight to behold.  

If this goes as big as I am hoping, we have an exciting product roadmap ahead.  

Sven
Manticore Arms


Which piston system are you using?


Superlative Arms

I am not sure if there even is another system currently available?  Is Adams Arms back?
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
4/2/2026 9:25:30 PM EDT
[#16]
Quote History
Originally Posted By Manticore_Arms:


Superlative Arms

I am not sure if there even is another system currently available?  Is Adams Arms back?
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By Manticore_Arms:
Originally Posted By Stonia:
Originally Posted By Manticore_Arms:
I have been talking to Desert Tech about the Ripley Rail since SHOT 2024 and was aware of the round counter for the Quattro back then, well before it was made public.    

It hasn't shown up in the marketing yet, but we have an in house piston driven Quattro lower build with Ripley Rail that is a sight to behold.  

If this goes as big as I am hoping, we have an exciting product roadmap ahead.  

Sven
Manticore Arms


Which piston system are you using?


Superlative Arms

I am not sure if there even is another system currently available?  Is Adams Arms back?


I was just hoping you'd reply with "our own design which should drop shortly" or something
4/2/2026 9:50:45 PM EDT
[Last Edit: Manticore_Arms][Edited] [#17]
Quote History
Originally Posted By Stonia:


I was just hoping you'd reply with "our own design which should drop shortly" or something
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By Stonia:
Originally Posted By Manticore_Arms:
Originally Posted By Stonia:
Originally Posted By Manticore_Arms:
I have been talking to Desert Tech about the Ripley Rail since SHOT 2024 and was aware of the round counter for the Quattro back then, well before it was made public.    

It hasn't shown up in the marketing yet, but we have an in house piston driven Quattro lower build with Ripley Rail that is a sight to behold.  

If this goes as big as I am hoping, we have an exciting product roadmap ahead.  

Sven
Manticore Arms


Which piston system are you using?


Superlative Arms

I am not sure if there even is another system currently available?  Is Adams Arms back?


I was just hoping you'd reply with "our own design which should drop shortly" or something




LOL, I should if I can find a way around all the patents that are in place for piston systems!

Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
4/3/2026 1:07:36 PM EDT
[#18]
Quote History
Originally Posted By Manticore_Arms:




LOL, I should if I can find a way around all the patents that are in place for piston systems!

Sven
Manticore Arms
View Quote


That's right, Paul Leitner-Wise will sue you for thinking about it
4/6/2026 7:15:43 AM EDT
[#19]
I think that we need more pictures of these rails on some builds.
4/6/2026 11:47:30 AM EDT
[#20]
Quote History
Originally Posted By Scrapple:
I think that we need more pictures of these rails on some builds.
View Quote


@Scrapple

First rails shipped out on Friday, so I am expecting we will start to see pics in the wild soon.

I am working on more photography of a couple of builds today.  

We did a whole bunch of range video this previous Saturday so we could show live fire, etc , but all the footage ended up corrupted

We will get another range day set up and get more footage soon!

Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
4/6/2026 11:56:41 AM EDT
[#21]
Quote History
Originally Posted By Gotterdammerung:
Oh my! Bad Attitude makes these

Weyland Yutani Lower Receivers
View Quote


Now paired with that lower...

Bigger_Hammer
LIFE'S JOURNEY IS NOT TO ARRIVE AT THE GRAVE SAFELY IN A WELL PRESERVED BODY,
BUT RATHER TO SKID IN SIDEWAYS, TOTALLY WORN OUT SHOUTING "HOLY $H!T...WHAT A RIDE"!!
4/6/2026 12:00:52 PM EDT
[#22]
This will be near the top of my list when I return to the ranks of the gainfully employed.

It will go on my 9mm SD Banshee/BRT.

Tom Sawyer.

"If The Rules brought us to this, what use are they?"
4/7/2026 10:44:21 AM EDT
[#23]
Build with a Hera CQR stock, Desert Tech Quattro lower, Superlative Arms piston kit, and KAK heavy double chrome lined 10.3” barrel.

This is for when you want to lay down A LOT of fire

Sven
Manticore Arms

Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
4/8/2026 11:06:09 AM EDT
[#24]
Quote History
Originally Posted By Manticore_Arms:
Build with a Hera CQR stock, Desert Tech Quattro lower, Superlative Arms piston kit, and KAK heavy double chrome lined 10.3” barrel.

This is for when you want to lay down A LOT of fire

Sven
Manticore Arms

https://www.ar15.com/media/mediaFiles/368252/IMG_7946-3742319.jpg
View Quote


Firstly,


Secondly, you have just built near exactly something that immediately came to mind the moment I saw you were making these. I was about to ask if anyone had any experience with the Quattro lowers and mags.
4/9/2026 7:21:09 AM EDT
[#25]
Not mine, stolen from Reddit:

Attached File
4/9/2026 1:04:52 PM EDT
[#26]
Quote History
Originally Posted By Stonia:
Not mine, stolen from Reddit:

https://www.ar15.com/media/mediaFiles/203509/1000039899_jpg-3743705.JPG
View Quote
Neat. This looks like it would be good with the new multi-function, slab-sided suppressor. Anyone got photoshop skills?

Tom Sawyer.

"If The Rules brought us to this, what use are they?"
4/20/2026 9:12:58 AM EDT
[Last Edit: Manticore_Arms][Edited] [#27]
Alright, my friend Nick decided to go wild testing the Ripley Rail on a bunch of guns, so we can steer this thread into actual bullpup territory!

We are going to be expanding the Ripley Rail line, and I think these two concepts might have legs.

AUG is weirdly awesome and straightforward. Really the only question is do we go with mounting on the picatinny top rail, or do it as a dedicated carry handle that bolts direct to the receiver.

With the X95, it gets a little more complicated with blending into the front if the gun and getting the charging handle to work. I am actually thinking we can do a modified version of our Cantilever Forend where the top rail is a dedicated carry handke that bolts direct to the top rail barrel mount points, the cantilever forend portion is the forend, and we make a slightly modified version of the “pump” foregrip to fit the cantilever forend.

Let me know your thoughts and any input!

Sven
Manticore Arms



Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
4/20/2026 9:24:22 AM EDT
[Last Edit: Stonia][Edited] [#28]
If I was buying one them, I'd prefer direct bolt on replacement rails if at all possible. With the AUG though, it might look a little odd since the front of the gun is so narrow and the rail is so boxy, at least compared to the Tavor or AR.

Did he try the a Keltec at all? I cant remember (I assume hes the one that loaded his IG up with fitment tests).

Also, I see Novox Research used a Ripley Rail to build and integral 9mm AR.  Pretty slick.

Eta: I wonder if it would fit a Lima-Six upper...

Attached File


Attached File
4/20/2026 9:28:48 AM EDT
[#29]
Quote History
Originally Posted By tortilla-flats:
Neat. This looks like it would be good with the new multi-function, slab-sided suppressor. Anyone got photoshop skills?

https://afstore.nyc3.cdn.digitaloceanspaces.com/original/3X/e/9/e966dd5e4835dca2b828f52bcaf1e8f6e570639c.jpeg
View Quote


That would certainly look sweet.
5/3/2026 10:36:44 AM EDT
[#30]
Question: would things mounted to Ripley Rail be expected to return to zero if the rail is removed and reinstalled? My gut says yes, but just checking.
5/3/2026 1:02:31 PM EDT
[#31]
Damn, now I’m really interested to see this on a Keltec RDB

It does look pretty good on the Tavor!
5/5/2026 1:52:59 PM EDT
[#32]
Quote History
Originally Posted By Thor:
Damn, now I’m really interested to see this on a Keltec RDB

It does look pretty good on the Tavor!
View Quote



The Keltec RDB is on the product roadmap- already took our in house RDB apart to look at how the top rail was mounted and see about sorting out the forend mounting and how we might accomplish it.

The carry handle is easy, the forend gets a little more complicated, but I have some ideas how to solve that.

Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
5/5/2026 2:03:35 PM EDT
[#33]
Quote History
Originally Posted By Manticore_Arms:
Alright, my friend Nick decided to go wild testing the Ripley Rail on a bunch of guns, so we can steer this thread into actual bullpup territory!

We are going to be expanding the Ripley Rail line, and I think these two concepts might have legs.

AUG is weirdly awesome and straightforward. Really the only question is do we go with mounting on the picatinny top rail, or do it as a dedicated carry handle that bolts direct to the receiver.

With the X95, it gets a little more complicated with blending into the front if the gun and getting the charging handle to work. I am actually thinking we can do a modified version of our Cantilever Forend where the top rail is a dedicated carry handke that bolts direct to the top rail barrel mount points, the cantilever forend portion is the forend, and we make a slightly modified version of the “pump” foregrip to fit the cantilever forend.

Let me know your thoughts and any input!

Sven
Manticore Arms

https://www.ar15.com/media/mediaFiles/368252/IMG_8176-3749661.jpg

https://www.ar15.com/media/mediaFiles/368252/IMG_8215-3749662.jpg
View Quote


I'll 100% take an AUG version when it's ready. RDB could potentially be interesting too (though to be honest I'd personally probably just buy one or the other).

Awesome work!
5/5/2026 8:14:19 PM EDT
[#34]
Spent the last two days working a couple of different approaches to an X95 version.  

Got one I thought was good, then mocked it up on the gun on the computer and...not so good.

Took a second crack at it, and better, but still not where I want it.

Finally got a crazy idea of conceptually hybridizing two existing components together and that just might be the ticket.  

Going to finish up the files and do a quickie 3D print to verify the looks and fitment.  


I don't usually discuss what I am working on, but after two false starts (from an aesthetic standpoint- functionally they will both work on the gun) this one seems to be heading in a positive direction and wanted to share that I am actively working to get more cool stuff out for the bullpup boys.


Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
5/6/2026 8:06:55 AM EDT
[#35]
Very much looking forward to seeing an RDB prototype.
5/8/2026 11:14:25 AM EDT
[Last Edit: Scrapple][Edited] [#36]
Quote History
Originally Posted By Stonia:
Not mine, stolen from Reddit:

https://www.ar15.com/media/mediaFiles/203509/1000039899_jpg-3743705.JPG
View Quote

I just want to reinforce how awesome this one is. Almost like an M41A.
5/14/2026 10:43:13 AM EDT
[#37]
More Ripley Rails drop on the Manticore Arms webstore at 2PM EST today (Thursday May 14th)


https://manticorearms.com/product-category/parts/ripley-rail/

Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
5/21/2026 9:42:10 AM EDT
[#38]
Due to so many people saying the Ripley Rail makes an AR-15 look like a pulse rifle we decided to have a little fun with it.

Working on some limited edition stickers, patches, and shirts. The riff on it works surprisingly well!

Sven
Manticore Arms




Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com
5/22/2026 9:33:34 PM EDT
[#39]
If you get more in, I may get one as a fun project.

I’m thinking of making use of my Osprey 45, and tuck it like the pic above.

-Cheap lower using endo 9mm mags.

-Paint the lower ‘mount black on the ripley rail.
-AR Upper no FA, painted green, front half of AR  lower  painted green.
-mlok portion of rail painted black.
-use a HBPDW brace or HB stock in black.
- green removable mag well.
- green mags
-249 style PG

FRT the thing.

I think it would look pretty good.
5/26/2026 9:47:07 PM EDT
[#40]
Quote History
Originally Posted By brk_bigboss:
If you get more in, I may get one as a fun project.

I’m thinking of making use of my Osprey 45, and tuck it like the pic above.

-Cheap lower using endo 9mm mags.

-Paint the lower ‘mount black on the ripley rail.
-AR Upper no FA, painted green, front half of AR  lower  painted green.
-mlok portion of rail painted black.
-use a HBPDW brace or HB stock in black.
- green removable mag well.
- green mags
-249 style PG

FRT the thing.

I think it would look pretty good.
View Quote




@brk_bigboss

We expect to have them back in stock in June.

I definitely would like to see that build!

Sven
Manticore Arms
Your best source for bullpup upgrades including the Hellion, Tavor, and AUG! www.manticorearms.com

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