Hydra-Matic Div™ M16A1 Rollmarked Semi Auto Receiver
Batch 20 ETA Late October/November 2025
Batch 19 ETA July/August 2025 - @ Black are back, Grey 2 weeks out
2 options - Black w/ANAD Marks or Grey without - No custom requests
Put YOUR cell # in the order & have a copy of your FFL's license sent to ffl@intlmilco.com reference your order # & name
- INTL.MIL.CO also operates under our trade name HYDRA-MATIC DIV to ensure traceability on our lowers
- SEMI AUTO We are Licensed 07/02 FFL/SOT - MGs depicted in photos are registered or real examples
- OPTIONAL MK18 MOD0 Engraving (Data packs on backorder and will be sold seprately from this batch, price adjusted)
- If you are building a normal rifle or a MK12 skip this
- 1:1 Markings - Engraving painstaingly copied off REAL Crane Hydra-Matic Mk18-0, see photos
- Roll-stamped markings just like the originals, including the serial # font - Clone correct for MK12 and MK18 rifles, finest M16A1 replica lowers being produced
- MFR Info and model # is laser engraved in the trigger well, visible when rifle is upside down - see photo for example.
- Hydra-Matic Specific Correct Grey Professionally Anodized by best in business OR Black
- Black lowers are great for Mk18 mod 0 since the engraving stands out
- M16 Profile interior pocket (NO Fake Sear Marks)
- All GCA and NFA laws apply - We ship to California
- All our products are in NFA E-File system
- This is a SEMI AUTO recevier and ships to a licensed FFL holder when complete, read the message at the top for submitting FFLs
- I DO NOT OWN Colt / HR / FN Dies
- We don't sell 80% receivers
Email me for questions: sales@intlmilco.com
Sales Tax for Texas Residents
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Hydramatic Lower Receiver, Hydramatic lower, hydramatic clone, hydramatic mk18
26 Reviews Hide Reviews Show Reviews
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Impeccable quality and attention to detail
Simply the best reproduction retro lowers available. IntMilCo’s attention to detail and quality are the pinnacle of retro items. Totally worth it when only the best will do.
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Hydra-Matic lower
Great product. Looks like the real thing.
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Hydramatic Lower
Fit & Finish is top notch. Well worth the money.
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Awesome receiver
The receiver is awesome! The MK18 MOD0 engraving is very nice. Like all of their receivers, I recommend this for your next clone build. Thanks Chris!
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Hydramatic M16A1 receiver
This is the second Hydramatic receiver (and I believe, fifth overall) that I have purchased from Intl Mil Co. This one may be my favorite. The grey anodizing looks great. I opted for the Mk 18 Mod 0 "Crane" laser engraving on the RHS of the receiver and that is sharp a precise. IMO, this is the perfect receiver for Mk 18 Mod 0 or Mk 12 builds.
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Hydramatic lower
It is perfect.
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GM Hydramatic lower
Absolutely perfect in every way.
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GM lower Batch 10
Nothing but the best. From quality to customer service. Can’t go wrong with an IntMilCo build. The wait is well worth it.
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Hydra-Matic M16A1 lower
Finish and workmanship is fantastic on receiver. Fully expect the fit to be the same when I get the final product assembled. Chris and Intl Mil Co continue to produce great equipment for niche applications, that typically have discerning clientele.
