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INOCULUM - LIMA SIX dedicated Lower (Page 1 of 15)
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Posted: 1/22/2026 9:50:05 PM EDT
[Last Edit: TZLVredmist][Edited]
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The IGM7 is a dedicated lower receiver for the LIMA SIX belt fed upper. It has been optimized in both aesthetics and functionality, making it the perfect solution for your build. The matching parting line of the IGM7 blends perfectly with the L6 upper for a finished look. The ambidextrous controls and built-in features add crucial functionality to your LIMA SIX. Dedicated lower for the LIMA SIX Belt-fed upper receiver group Billet 7075-T6 Aluminum 5-Axis CNC Machined MIL-A-8625 Type III Class 2 Hardcoat anodized black Matching parting line with the LIMA SIX Belt Fed Upper Machined 8620 steel ambidextrous bolt catches Oversized trigger guard accommodates use of gloves M16 fire control group cut trigger pocket Dropped link chute enables quick clearing of links Pictogram marking at 90degrees for fire selectors Compatible with mil-spec and after-market feeding sacks and boxes 100% designed and manufactured in the great state of IDAHO, USA Weight: 11.2oz Dimensions: H: 5.31” x W: 1.76” x L: 7.91   Alright here is what we expect to go out around the 15th by ORDER NUMBER sorted by VOUCHER NUMBER! Confusing? We sorted by voucher number, accounted for SN requests, added in all the CO orders so they are taken care of, and then back filled based on availability. Keep in mind that some order numbers have multiple lowers in them, and those that requested higher SNs, but were on a lower voucher are getting pushed back to accommodate the SN request. We also still have a hand full of early vouchers that have never been used for final purchase. We have reached out multiple times to those individuals. Order Numbers Shipping on, or around the 15th of July: 5147 5148 5165 5166 5167 5170 5177 5190 5192 5197 5201 5219 5222 5223 5246 5262 5268 5282 5282 5294 5323 5327 5331 5333 5338 5339 5340 5344 5376 5382 5482 5560 This will get us to 27% shipped to backlog! |
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I suggest you make sure the slot for the gas key gets covered by the lower. So no need for a gas plug there. Also, an ambi bolt catch would be a bonus. Make sure that the upper can pivot enough to remove the BCG if you pop open the rear take down pin. M16 cut FGC pocket please. Oh and make it look cool 
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https://www.limasix.com
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Originally Posted By Type7SOT: I suggest you make sure the slot for the gas key gets covered by the lower. So no need for a gas plug there. Also, an ambi bolt catch would be a bonus. Make sure that the upper can pivot enough to remove the BCG if you pop open the rear take down pin. M16 cut FGC pocket please. Oh and make it look cool 2nd to all of this. |
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I'm in! Harvey already hit the high points. -Oversized Ambi Controls -M16 spec FCG pocket -Oversized Trigger Guard It would be cool if it followed the contours of the upper, and maybe lightning cuts. And all that being said, maybe a replacement charging handle, larger, that resembles an M240 charging handle. |
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Originally Posted By Rudon6416: Not sure if you are looking for people's collaboration on features or just getting a count on who's interested. Either way im in! 😎 Yes. : ) All, Please read the first post as I have added to it. We will use the first post in the thread to keep track of the project on the consumer side. |
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Originally Posted By FantasticPlastic: Got a sign up list? Website? Over the weekend we are going to create a page on our website that is "Unlisted" and I will share the link in the original thread. We will add the lower as out of stock with the option to be notified. This will create a nice list for the project, and when ready for deposit it will auto mail! Standby! Ryan |
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Originally Posted By November5: Lightening cuts don't make sense on a belt fed in my opinion. I don't want it to weigh a ton, but I also don't want it to be super light either. Removing unnecessary material without lightening cuts should be more than enough to balance it out. I second this. Machine lines in the lower could be made to be an aesthetically pleasing match to the upper without additional expensive machine time or thru-holes. |
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Was thinking about doing a dedicated 3d printed lower for the L6 that would allow for normal controls unlike the Hoffman version. I have my printer dialed in for the high end CF nylons as a material selection choice. Really would just need to get my hands on the upper to get that rolling but not sure when the next order window is. Would probably do 2 versions at least for the fire controls, 0-90-180 and 0-45-90 since the new AS Designs ARC Fire has the shorter throw option. |
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Originally Posted By B320: I second this. Machine lines in the lower could be made to be an aesthetically pleasing match to the upper without additional expensive machine time or thru-holes. Originally Posted By B320: Originally Posted By November5: Lightening cuts don't make sense on a belt fed in my opinion. I don't want it to weigh a ton, but I also don't want it to be super light either. Removing unnecessary material without lightening cuts should be more than enough to balance it out. I second this. Machine lines in the lower could be made to be an aesthetically pleasing match to the upper without additional expensive machine time or thru-holes. Absolutely all of this. |
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Originally Posted By Seph: What part of the state are you in? Could print you test fits/prototypes if need be. Originally Posted By Seph: Originally Posted By TZLVredmist: Absolutely all of this. What part of the state are you in? Could print you test fits/prototypes if need be. We are in the Boise area! |
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Originally Posted By swampfoxoutdoors: lol those names are gay. What happened to just model numbers. Receiver Assembly, Lower, Machine Gun, Belt-Fed, 5.56mm, AR-Type XM-i1 Yeah, its a lower, not a missile system... We aren't shooting Athenas and Hercules amd Vikings to take down fleets of soviet bombers. |
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Originally Posted By swampfoxoutdoors: Well since this is to be paired with a Lima Six call it a Mike Seven. Then this will be super appealing to all the kids on Tik Tok saying SIXXX SEVENNNN! Attached File Attached File |
I’m looking for a rifle length barrel (for a Savage,TC, or AR) in .221 Fireball
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Originally Posted By B320: I second this. Machine lines in the lower could be made to be an aesthetically pleasing match to the upper without additional expensive machine time or thru-holes. To be clear on my suggested lightning cuts this describes what I had in mind. Cutting all the way through is not the idea, and would be a detriment. |
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A lot of people wanted a belt-fed but were never going to spend $8,000—or even $6,000—on one. Honestly, many wouldn’t even spend more than $4,000. Harvey has made it possible for just about anyone to own one. At roughly $2,000 for a kit and another $1,000 for a lower and barrel, most people can afford a $3,000 belt-fed. The option to buy it piece by piece, as finances allow, makes it even more attainable. With that said, some people want a budget-friendly lower, while others are willing and able to buy the best option available. I could see value in offering a simple base lower alongside a higher-end version with all the bells and whistles. I think both would sell well. My plan this whole time was to buy one from Cryo for $250—if they ever actually made one and started shipping. My backup plan was to buy one of their $200 lowers and use a $55 Inoculum adapter, which it seems several people have already done. So a lot of folks are willing to put at least $250 into a quality Lima Six lower. If this can be pulled off, I think they would sell very easily. I think you would sell 70 plus for every 100 Lima uppers / kits sold. I’m definitely interested in one and waiting to see where this goes. |
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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. 
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Originally Posted By November5: As of right now on a standard lower the charging handle is the only bolt release. 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. |
https://www.limasix.com
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Did you read the OP? If you had you would know what he chose the name in line with his other products. Please explain to me how a lower receiver can have a sexual orientation? I find juvenile comments like that to be why the site gets the reputation that it does. I come here for knowledge and information. I don’t care what the name is, as long as the lower works well with the upper. I am looking forward to the next update. Scott |
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Anyone know what carry handle Micah uses in his Lima Six video? The closest I can find available online is the M+M carry handle. Also, what do you guys think of using a Geissele Heavy CHF CL 16" barrel vs KAK's Lima barrel options? Any word of when a 3rd batch might be up for pre-order in 2026? Thanks! |
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Originally Posted By PAESAN: No logo stealth lower without text on the left side, small font on the right side. And as someone else said: Mike 7 I will have a logo and text, but will remain real small. Also we should have the product page up today with an out of stock button for "Click to be notified." so we can start a list.
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Originally Posted By swampfoxoutdoors: I’m not seeing it. Originally Posted By swampfoxoutdoors: Originally Posted By TZLVredmist: I will have a logo and text, but will remain real small. Also we should have the product page up today with an out of stock button for "Click to be notified." so we can start a list. I’m not seeing it. Still working on it..... Will post the link when it's up! |
INOCULUM - LIMA SIX dedicated Lower (Page 1 of 15)
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