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American Defense Modular CM4 SOCOM Spacer (Lower 1/3 co-witness Aimpoint CompM4)

American Defense Modular CM4CO Spacer (co-witness height on M4)
American Defense Modular CM4CO Spacer (lower 1/3 co-witness height on M4)

List Price: $34.95
Our Price: $27.50

Stock Status:In Stock
Product Code: AD-CM4-SOCOM

The American Defense MFG spacer for mounting an Aimpoint CompM4 on the modular AD-B2 Base.


The B2-CM4SOCOM Riser is designed to interface with the B2 modular base is configured for the Aimpoint Comp M4. It will put the iron sights in the lower third of the optic. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize.

Materials & Construction

The B2-CM4SOCOM Riser is precision CNC machined from a block of 6061 T6 aluminum and finished in hard coat type 3 Mil-Spec anodize for a rock hard lasting finish.

  • Precision machined from 6061 T6 Aluminum.
  • Hard coat anodized for a lifetime of performance.
  • American Defense MFG, LLC. products feature a lifetime warranty.
  • Made with pride in the U.S.A.


The B2-CM4SOCOM Riser has the following specifications:

  • Weight: 1.25 ounces

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 1 Write a review.

  0 of 0 people found the following review helpful:
5 of 5 ADM 1/3 QD SPACER REVIEW October 17, 2019
Reviewer: Jacob from United States  
I had a mount like this before which I liked but got rid if to a friend. Anyway this is a good spacer and works well. I don't have a gripe with BCM but instead with ADM. This mount does not come with the necessary screws, instead I think they assume that you have the necessary mounting screws, if you do thats cool, but if you don't oh well,I guess!!?? How much do screws cost $5 at most?  So increase the cost by $5 to make sure that people the necessary equipment to attach what they purchased. The description is not clear and then you will have to chase down an Aimpoint rep or ADM to get what you need , a d then wait up to a couple of weeks or more, certainly more than $5 worth of trouble that can be avoided.BCM thanks for the fast shipping and trusted site, ADM get your stuff together, every mount and spacer and should come with mounting hardware necessary to attatch equipment to weapon

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