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Hydra-Matic M16A1 Receiver - Batch 16 Preorder (Mk18-0 Optional)


(18 reviews) Write a Review
Batch 16 Shipping Oct 5th
Read Description prior to ordering:
Orders ship Oct 5th

Expected ship date is Oct 5th 2024

Maximum file size is 524288KB, file types are bmp, gif, jpg, jpeg, jpe, jif, jfif, jfi, png, wbmp, xbm, tiff, pdf

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Hydra-Matic M16A1 Rollmarked Semi Auto Receiver 

  Preorders open 7/6 @ 12 Noon READ BELOW  

Batch 16 - Lowers are CNCed and I'm prepping for anodizing now. Orders WILL ship by Oct 5th - We have had MANY preorder requests. Please, only order if willing to wait until Oct 5th. My time is very limited, I work after hours - if you order you WILL get a lower, please hold off on status updates until Oct

Put YOUR cell # in the orderhave a copy of your FFL's license sent to reference your order # & name - we will sort licenses 2 weeks prior to shipping and don't reply to the emails sent to that address to keep the clutter down. Please don't have your FFL send license multiple times, if license is missing we text you 2 weeks before October 5th. Normal emails are to be sent to

  • SEMI AUTO We are Licensed 07/02 FFL/SOT - MGs depicted in photos are registered or real examples
  • OPTIONAL MK18 MOD0 Engraving w/Data Pack - See Photos
    • 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
    • Full MK18 mod 0 Data Pack, Manual, round count log, hang tag
  • 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 Tax for Texas Residents

hydramatic m16a1, hydra-matic m16a1, clone m16a1, clone correct

Hydramatic Lower Receiver, Hydramatic lower, hydramatic clone, hydramatic mk18

Each lower warrantied for major defects

18 Reviews Hide Reviews Show Reviews

  • 5
    Hydra-Matic M16A1 lower

    Posted by Jay Phelps on Apr 17th 2023

    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.

  • 5
    M16A1 Hydra-Matic reciever

    Posted by Martin Harris on Mar 23rd 2023

    This lower basically sets the standard for a M16A1 for those in need of a lower for cloning. Fit and finish is perfect, anodizing is great. Great company with great products.

  • 5
    GM lower

    Posted by Fitzgerald J. Aleman on Aug 17th 2022

    Top quality lower, perfection on details

  • 5
    GM lower

    Posted by Matt Darnell on Aug 16th 2022

    Great looking receiver. Well worth the wait.

  • 5
    GM Hydramatic

    Posted by KM on Aug 13th 2022

    It is legit. Worth the wait and cost. Overall happy. Thanks.

  • 5
    GM Hydra-Matic 100% Lower Receiver

    Posted by Eric Crosslin on Jul 21st 2022

    A very long wait, but definitely worth it for the quality of the receiver. Customer service and communication were good.

  • 5
    M16A1 GM receiver

    Posted by Ari T. on Jan 31st 2022

    The fit and finish is excellent! The detail that has been put into these is outstanding. The roll stamping add visual and tactile elements lacking from the engraved receivers out there. The anodizing is the perfect early grey shade. There is even forging flash in the right places. If you're building clone correct rifles, or in need of a receiver to go with a surplus parts kit, this is the only way to go!

  • 5
    GM lower

    Posted by Matt Darnell on Jan 14th 2022

    Very nice receiver. Well worth the wait!

  • 5
    GM 100% LOWER

    Posted by Sean Smithson on Jan 13th 2022

    Stunning lower, museum quality. As always the work done is top notch. Thanks for everything