CMMG Auto Sear Trip and Anti-Bounce Kit

CMMG Auto Sear-Trip-Kit

If you have a full auto M16/AR15 lower, and you want to run a .22 LR conversion, take a look at the CMMG kit that was designed for you.  The Auto Sear Trip and Anti-Bounce Weight Kit is designed to keep the bolt from bouncing after it has closed into battery.  Additionally, CMMG states the kit will disengage the hammer from the auto sear at the proper moment.

This video shows a suppressed gun with the CMMG kit in action:

CMMG cautions that this kit will not work with all drop-in auto sears or with a Lightening Link full-auto conversion.  More information on these specifics can be found on the company’s website.  Also note that this kit does NOT turn your AR into a full-auto, rock-and-roll gun.


Richard Johnson

An advocate of gun proliferation zones, Richard is a long time shooter, former cop and internet entrepreneur. Among the many places he calls home is http://www.gunsholstersandgear.com/.


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  • Vhyrus

    I am sure the 8 people that can legally use this modification are jumping for joy right now.

    • http://twitter.com/Azzy_FOAC BryanS

      I will say it can save LE some money in training courses where it comes down to manipulation. For what they spend on ammo one time, they can buy a few mags and a conversion and a brick of 22.

      • MacK

        Good luck finding .22lR

  • MRROGERS1

    8ppl? Lol I have been using the SS conversion with anti bounce and search trip with my PAWS M16 with a dedicated 10.5in Khuel barrel and it runs AMAZING! So for the other 7 people out there, buy it and make sure to use the Federal blue box ammo they recommend, it really makes a difference. Also, be forwarded, unless you are using a dedicated 22LR barrel and collar adapter, FA fire is difficult to run.

  • gunslinger

    anyone have a link for the video? i can’t see it in either of my browsers.

  • ElGuapo

    Just backordered the full kit from CMMG. Thanks for the heads up! I had never bought a kit for my M16A1 because I always heard they wouldn’t run. Maybe I’ll have some more ammo by the time it ships!