M16A1 Hydra-Matic Rcvr - Sold Out/Read Description


(7 reviews) Write a Review
Batch 9 - Receivers Ship April 15, 2023
Minimum Purchase:
1 unit
Maximum Purchase:
10 units

Expected release date is Apr 15th 2023

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

Out of stock

GM M16A1 Rollmarked Clone/Reproduction Receiver - Grey Anodized



  • 20 X SPOTS - Batch 9 Sold Out in 90 min today 10/28, please sign up for in-stock notifications - I am trying to secure raw materials for another batch of 20 - If I can get the supplies lined up, you will be the first to know!
  • These are the finest M16A1 clone lowers being produced 
  • SEMI AUTO We are Licensed 07/02 FFL/SOT - MGs depicted in photos are registered or real examples
  • Roll-stamped markings just like the originals - Clone correct for MK12 and MK18 rifles
  • MFR Info and model # is laser engraved in the trigger well, visible when rifle is upside down - see photo for example
  • GM Specific Correct Grey Professionally Anodized by best in business (No other colors available)
  • M16 Profile interior pocket (NO Fake Sear Marks)
  • New/Consistent Serial Stamp Setup & Correct Selector Markings
  • All GCA and NFA laws apply
  • All our products are in NFA E-File sys for easy form 1 SBR and form 2 SOT filing

Email me for questions: sales@intlmilco.com

Sales Tax for Texas Residents

I DO NOT OWN COLT MARKINGS - Colt offers beautiful Retro M16s 


I DO NOT SELL 80% Receivers anymore

Each lower is warrantied for major defects, small cosmetic blemishes aren't part of that warranty.

7 Reviews Hide Reviews Show Reviews

  • 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