E93 CAV-15 Receiver Modifications

Echo Nine Three has added a Services section to their website. There you will find a growing number of the gunsmithing services that they offer including their CAV-15 Lower Receiver modifications. If you have been reading JTT for a long time, you have seen these services mentioned before several years ago and seen them in use on the Sub 6 with a Twist Build. Now, for the first time ever, these services are officially listed on the Echo Nine Three website which is great because I have received several inquiries about the modifications over the years.


The CAV-15 Receiver Modification package includes cutting the stock to the customer’s specified length of pull, fitting a new butt pad, undercutting the trigger guard, and stippling the grip. If you think about what it would cost to the change the stock and grip on a standard lower receiver, this package is quite reasonably priced and I can testify to the fact the work is very well executed. It completely changes the way the GWACS Armory CAV-15 MKII Receivers handle and goes a long way toward reducing the weight of an already lightweight lower.

The CAV-15 MKII tends to get lumped into the same category as all the other poorly executed polymer lowers and that is truly a shame. These lowers are bull strong, lightweight, and handle very well – especially with the E93 Modification Package. You give up some parts standardization and some ability to easily swap/adjust parts but the price is right and it would take you a few life times to wear one out or break it.

Check out the E93 CAV-15 Modification Package.

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3 Responses to E93 CAV-15 Receiver Modifications

  1. Squirreltactical August 26, 2015 at 17:16 #

    Does that include the lower or is the $145 to modify a pre-purchased one?

    • Matt August 26, 2015 at 17:57 #

      That is for the modification only on a lower that you provide.

      • elliot August 27, 2015 at 17:15 #


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