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INOCULUM - LIMA SIX dedicated Lower (Page 2 of 15)
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Originally Posted By runngun: Is there a functional reason to not have the nut sack centered (left-right) on a dedicated lower? Your adapter pushes it to the left which affects both the balance and the ease of carrying slung in front of the body. There is a functional reason, however I agree the offset is odd. Reasoning is to try and comply as much as we can with MIL standard for the 50degree belt angle into feed from the soft packs. I am sure it can be centered and probably not affect function. 
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Link on the website has been established. I also added it to the OP. LINK HERE: https://inoculum-group.com/product/lima-six-dedicated-lower/ This will be used to keep a running list of those who would like to be notified when deposit slots open. Ryan |
| If your current magwell adapter allows a 50* feed angle, and if the dedicated lower enables the attachment point to be ~2" higher, then the nut sack could be moved 1.68" to the right (2"/tan(50*) and still keep the same feed angle. Regardless, it will take much less offset to achieve a given feed angle with the dedicated lower. |
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Originally Posted By runngun: If your current magwell adapter allows a 50* feed angle, and if the dedicated lower enables the attachment point to be ~2" higher, then the nut sack could be moved 1.68" to the right (2"/tan(50*) and still keep the same feed angle. Regardless, it will take much less offset to achieve a given feed angle with the dedicated lower. We will shoot for center. Plus it looks better as well. |
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Originally Posted By marks: Everything Harvey said in his post except... I don't see the need or extra expense for an ambi bolt release. But more importantly... I didn't see any mention in this thread about the rear shelf height. The back end of this lower must be able to accept an RDIAS or the whole thing would be a non starter for me. I'd also ad with the exception of making it fair into the L6 keep the lower as close to mil spec as possible. Don't need or see any reason for any kind of lightening cut outs. The simpler the better to keep your costs down. As far as a name... I don't really care but honestly I'm not in to fancy. That said, pick what you like and call it good. I would happily buy at least one of your dedicated lowers. Especially if the quality is on par with the L6 mag well adaptor I bought from you.  Just out of curiosity, why do you think people are calling for an M16 fire control pocket? Is that not a low shelf? And have you ever used a beltfed AR? The ambi controls are definitely an advantage on the others that exist, to include the L6 |
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It's unclear to me what advantage this lower would have over any other lower one might buy or build. Can someone also explain or direct me to an explanation of this "nutsack" people are referring to? It sounds like it's a Lima Six product, but I see no mention of it on the Lima Six web site. |
trobertson5-0 I wasn't put in jail for what I did. I was put in it for what I think. There were FBI agents posting in my threads. I've seen the discovery showing this.
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Originally Posted By Jodan1776: It's unclear to me what advantage this lower would have over any other lower one might buy or build. Can someone also explain or direct me to an explanation of this "nutsack" people are referring to? It sounds like it's a Lima Six product, but I see no mention of it on the Lima Six web site. A Lima 6 lower would have correct geometry for the upper, and have the ability to accept standard M249 ammunition feed devices. Like the nut sack. Attached File This lower is modified for use with a Fight Lite upper. The Lima 6 has a different feed geometry Attached File M249 100 round nut sack. It got its name some years ago from SAW gunners Attached File M249 200 round pouch. Some call these nut sacks too Attached File 200 round box Attached File Misc M249 feed devices |
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Originally Posted By Jodan1776: It's unclear to me what advantage this lower would have over any other lower one might buy or build. Can someone also explain or direct me to an explanation of this "nutsack" people are referring to? It sounds like it's a Lima Six product, but I see no mention of it on the Lima Six web site. @Jodan1776 A "nutsack" is any variety of soft mag pouch for belt linked ammo. What Inoculum is doing is creating a ar15 lower without a magazine well. It will be replaced with a dovetail to allow these nutsacks to be used in an aesthetically and compact way for the LIMA6 or any other belt fed ar15 upper. 
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"That pistol just kept saying, let go of my ears, you don't know what you're doing." - thehellbringer
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Originally Posted By Elcunning: A Lima 6 lower would have correct geometry for the upper, and have the ability to accept standard M249 ammunition feed devices. Like the nut sack. https://www.ar15.com/media/mediaFiles/209044/1000007286_jpg-3701984.JPG This lower is modified for use with a Fight Lite upper. The Lima 6 has a different feed geometry https://www.ar15.com/media/mediaFiles/209044/1000007282_jpg-3701978.JPG M249 100 round nut sack. It got its name some years ago from SAW gunners https://www.ar15.com/media/mediaFiles/209044/1000007283_jpg-3701981.JPG M249 200 round pouch. Some call these nut sacks too https://www.ar15.com/media/mediaFiles/209044/1000007285_jpg-3701982.JPG 200 round box https://www.ar15.com/media/mediaFiles/209044/1000007284_jpg-3701983.JPG Misc M249 feed devices Just wanted to add, some call the 200 rd boxes 'pork chops' if you see that out there. |
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Originally Posted By Seph: Do we have any kind of CAD file available of the upper to work off of? As much as I'd like to open source the whole project, I already have one customer who announced publicly they want to reverse engineer the upper and put it into production.  I'm considering either releasing a redacted model that that people can make accessories for it, or waiting until my patent goes through and then releasing a non-redacted model. But even then, there may be ITAR issues because our company is now ITAR registered. If nothing else, I should be able to provide a cross-section profile of the upper to manufacturers who want to make the lower match up with it exactly. |
https://www.limasix.com
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Originally Posted By Type7SOT: As much as I'd like to open source the whole project, I already have one customer who announced publicly they want to reverse engineer the upper and put it into production. I'm considering either releasing a redacted model that that people can make accessories for it, or waiting until my patent goes through and then releasing a non-redacted model. But even then, there may be ITAR issues because our company is now ITAR registered. If nothing else, I should be able to provide a cross-section profile of the upper to manufacturers who want to make the lower match up with it exactly. Originally Posted By Type7SOT: Originally Posted By Seph: Do we have any kind of CAD file available of the upper to work off of? As much as I'd like to open source the whole project, I already have one customer who announced publicly they want to reverse engineer the upper and put it into production. I'm considering either releasing a redacted model that that people can make accessories for it, or waiting until my patent goes through and then releasing a non-redacted model. But even then, there may be ITAR issues because our company is now ITAR registered. If nothing else, I should be able to provide a cross-section profile of the upper to manufacturers who want to make the lower match up with it exactly. A simplified CAD file of the upper that has just the external geometry for getting the lower lined up is what I was thinking but yeah that does suck that people are going to be trash like that. If an NDA/Non-Compete would help you there I would happily sign one. Only other option would be to wait for orders to open again so I can get one on hand to use as a reference. |
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Alright, I have some bones to work with now. I got the basic shape done, and a little vision to work with. So much more to go, but..... I like where it's going. Thanks much to Harvey and the LIMA SIX crew for helping with a redacted upper to work with. It's exactly what we needed to get started!   
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Originally Posted By TZLVredmist: Alright, I have some bones to work with now. I got the basic shape done, and a little vision to work with. So much more to go, but..... I like where it's going. Thanks much to Harvey and the LIMA SIX crew for helping with a redacted upper to work with. It's exactly what we needed to get started! https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-27_223036-3703117.png https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-27_222554-3703118.png https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-27_222510-3703119.png That's what I'm talking about!! |
https://www.limasix.com
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Originally Posted By tommyidone: Please consider an xcr style bolt catch. Would be ambi and seems pretty simple to make. Also rear takedown plunger hole threaded for a screw would be nice. I am diggin' the XCR style ambi catch, let me look into it. I think the rear takedown plunger hole being threaded is going to be an absolute. Ryan |
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Humble suggestion. But when you design the dove tail for the nut sacks if possible design it with a large open funnel for easy insertion. And not sure how all saw packs are made but the one I have looks to have steel tab for locking. Steel on a Aluminum lower in FA or Super safe is going to cause some movement and wear. May want to design a swappable locking block for that reason. Something that will allow a steel or polymer dovetail and have it stay in place with some roll pins or something user serviceable. View it as a consumable item. |
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Originally Posted By swampfoxoutdoors: Humble suggestion. But when you design the dove tail for the nut sacks if possible design it with a large open funnel for easy insertion. And not sure how all saw packs are made but the one I have looks to have steel tab for locking. Steel on a Aluminum lower in FA or Super safe is going to cause some movement and wear. May want to design a swappable locking block for that reason. Something that will allow a steel or polymer dovetail and have it stay in place with some roll pins or something user serviceable. View it as a consumable item. Hard anodized 7075 aluminum is extremely tough. The base metal is stronger than mild steel, and type III anodizing is as hard as tool steel. I'm assuming he will use 7075 and not 6061. If he uses 6061 that's a completely different story. |
https://www.limasix.com
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Originally Posted By Type7SOT: Hard anodized 7075 aluminum is extremely tough. The base metal is stronger than mild steel, and type III anodizing is as hard as tool steel. I'm assuming he will use 7075 and not 6061. If he uses 6061 that's a completely different story. Good deal. Learned something new today. |
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XCR / BREN style Ambi-Catch ideas. I actually ordered the entire assembly from Robinson (Catch, Paddle, Spring, Bolt) and the cost was around $35 for all the parts. I am curious if we can integrate existing controls on the lower. For right now I modeled the idea in place. Ryan  
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Originally Posted By TZLVredmist: XCR / BREN style Ambi-Catch ideas. I actually ordered the entire assembly from Robinson (Catch, Paddle, Spring, Bolt) and the cost was around $35 for all the parts. I am curious if we can integrate existing controls on the lower. For right now I modeled the idea in place. Ryan https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-28_220023-3703708.png https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-28_220116-3703709.png |
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Originally Posted By Type7SOT: Yeah, was gonna say, be careful. They did not react well when November5 tried a similar thing. If I recall correctly they accused him of patent infringement. That figures, and I get it. November5 is willing to let us work with the setup he did with the Hydra Adaptor as well, so I will explore that also! Thank you by the way! |
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Originally Posted By TZLVredmist: XCR / BREN style Ambi-Catch ideas. I actually ordered the entire assembly from Robinson (Catch, Paddle, Spring, Bolt) and the cost was around $35 for all the parts. I am curious if we can integrate existing controls on the lower. For right now I modeled the idea in place. Ryan https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-28_220023-3703708.png https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-28_220116-3703709.png Hot damn that is sexy I would also add that 3pos safety markings would be a nice idea for this lower |
| Does anyone think that it might be nice on these lowers to have either a pin or a hole that would allow a 1919 pintle or M60 gooseneck? Putting a Lima onto a full on tripod set up, particularly with the KAK water cooled kit, would be something pretty special I think. |
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Originally Posted By DH2: Does anyone think that it might be nice on these lowers to have either a pin or a hole that would allow a 1919 pintle or M60 gooseneck? Putting a Lima onto a full on tripod set up, particularly with the KAK water cooled kit, would be something pretty special I think. There is a lot of room forward of the trigger. When we get the Ambii stuff sorted, we can see what's left to work with. |
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Originally Posted By DH2: Does anyone think that it might be nice on these lowers to have either a pin or a hole that would allow a 1919 pintle or M60 gooseneck? Putting a Lima onto a full on tripod set up, particularly with the KAK water cooled kit, would be something pretty special I think. I would recommend having the mounting point more forward on the gun. The more forward it is, the less the muzzle jumps from recoil. Your best bet is a cheap pic rail adapter to a 1919 pintle. But if you aren't already invested in military tripods, an arca rail and tripod with an arca clamp make the most sense price and practicality wise. You also want the mounting point as close to the Bore centerline as possible. As the higher the gun sits above the elevation mechanism. The more it'll jump. |
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Originally Posted By TZLVredmist: XCR / BREN style Ambi-Catch ideas. I actually ordered the entire assembly from Robinson (Catch, Paddle, Spring, Bolt) and the cost was around $35 for all the parts. I am curious if we can integrate existing controls on the lower. For right now I modeled the idea in place. Ryan https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-28_220023-3703708.png https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-28_220116-3703709.png 
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I suppose I should have said "pin or hole to facilitate T&E when using a pintle." A mount of some variety for t&e in the lower would let any handguard mounted pintle interact with it and give you full controllability. It may be best to try and make a platform style mount that mounts into the nutsack hangar and cantilevers forward to which you can attach both the pintle and T$E. Simplifies the lower and avoids populating the lower with features with only niche utility. It does mean that the nut sack hangar would be supporting all of the recoil stresses, which ain't great. |
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Originally Posted By DH2: I suppose I should have said "pin or hole to facilitate T&E when using a pintle." A mount of some variety for t&e in the lower would let any handguard mounted pintle interact with it and give you full controllability. It may be best to try and make a platform style mount that mounts into the nutsack hangar and cantilevers forward to which you can attach both the pintle and T$E. Simplifies the lower and avoids populating the lower with features with only niche utility. It does mean that the nut sack hangar would be supporting all of the recoil stresses, which ain't great. For this project for now, lets add that as a "Stretch Goal" as they say in those big fancy corporate places. 
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Originally Posted By TZLVredmist: XCR / BREN style Ambi-Catch ideas. I actually ordered the entire assembly from Robinson (Catch, Paddle, Spring, Bolt) and the cost was around $35 for all the parts. I am curious if we can integrate existing controls on the lower. For right now I modeled the idea in place. Ryan https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-28_220023-3703708.png https://www.ar15.com/media/mediaFiles/47383/Screenshot_2026-01-28_220116-3703709.png A lot of us tried to order those when November5 tried to use that design. They emailed us all and asked us for our rifle's serial number. Then canceled my order before letting me reply. Saying that someone was trying to infringe on their patent. Good luck getting them delivered. They dont seem to like business. |
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Originally Posted By Type7SOT: Hydra is making bolt catches that work as both a catch and release. I just started testing and it works great. Will be in the site soon. The kid that makes the bolt catch/release was at Shot and said he was getting sick of seeing them all day!  I gave him some candy and told him to get back to work and thanks.
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Originally Posted By DH2: Does anyone think that it might be nice on these lowers to have either a pin or a hole that would allow a 1919 pintle or M60 gooseneck? Putting a Lima onto a full on tripod set up, particularly with the KAK water cooled kit, would be something pretty special I think. I'd rather go this route to have the mounting point further forward.  https://knsprecisioninc.com/adapter-30/ |
Even though it may seem that the OP is mentally disabled, calling him a "retard" is a personal attack. -DKProf
This is bud light marketing, meets Ocean Gate engineering with Sig public relations level of quality. -RC03
This is bud light marketing, meets Ocean Gate engineering with Sig public relations level of quality. -RC03
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Originally Posted By DH2: Lol that's probably the best course of action. I'll see what I can whip up though Originally Posted By DH2: Originally Posted By TZLVredmist: For this project for now, lets add that as a "Stretch Goal" as they say in those big fancy corporate places. I love the idea, but looking at the preview model I just dont see the room for it where you would have enough clearance. |
Even though it may seem that the OP is mentally disabled, calling him a "retard" is a personal attack. -DKProf
This is bud light marketing, meets Ocean Gate engineering with Sig public relations level of quality. -RC03
This is bud light marketing, meets Ocean Gate engineering with Sig public relations level of quality. -RC03
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Originally Posted By ShooterPatriot: I love the idea, but looking at the preview model I just dont see the room for it where you would have enough clearance. This way the plate can be removed when you're not doing tripod things, and it puts all the stress/strain on the lower rather than on the handguard and barrel nut. Aesthetics TBD. |
| now that I think about it. if this was left side charging it would make sense to do the xcr style but since its not. perhaps this is the better solution??? I still like the xcr style bolt release. its cleaner looking in my opinion. |
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Originally Posted By tommyidone: now that I think about it. if this was left side charging it would make sense to do the xcr style but since its not. perhaps this is the better solution??? I still like the xcr style bolt release. its cleaner looking in my opinion. Yeah it's all perfect for a lefty (Like me.  ) having the charging handle on the right side!
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INOCULUM - LIMA SIX dedicated Lower (Page 2 of 15)
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