Bolt Carrier Requirements for the Echo AR II

Will this work with a "Faxon Gunner BCG Ultra-Light" [SKU:FF556BCGCNITRIDE LW]?
It is listed as "Maintains Full-Auto Trip Sear for full-auto" but is skeletonized (to reduce weight) in that area so I'm not sure?

So i have a Ruger AR and the back underside of the bolt has a measurement of 1 1/4 inch, is that big enough? i believe i need to get a new bolt because I've installed the trigger and it works properly when i function check it but when i put the upper on the gun the trigger is locked in all firing positions so im thinking the bolt is not touching the lever and i need a new bolt…

How does Echo AR2 work with CMMG (22 Conversion) work… I just picked up the "CMMG Link" but it only works on release on echo mode..

Can someone e-mail me i have a echo trigger question thank you jbspyautotech@gmail.com

will the Echo II work with my lightened bolt?

What's so awesome is this was dropped without notice. Spent $500 on the "old" trigger (requireing the proprietary carrier) and the new version that doesn't require it, went on sale 1 month later. It's bad enough I had to place a deposit to go on a waiting list, but then for my number to come up JUST prior to an improved version being released without notice? Don't think I'll be a returning customer…

Could you use an m16 cut lightweight bcg with this trigger? I noticed you kept saying standard full auto bcg. I just want to make sure it works before i buy it.

Will the Gen 2 work with my piston-driven PWS upper? PWS utilizes a long stroke piston system very similar to what an AK uses

I’ve got a gen 2 echo coming for my AR SOULD I LOOK AT BOLT

So anyword on if you guys will get a universal system? I have a Ruger SR556 and their weird piston bolt carrier is semi and propretary, I could get a adam arms bolt carrier thats full auto and modifiy it but I want to be exact.

Why can’t you tell me the brand is like to know so I don’t get it

is there a part number or Brand you can put on here so I can buy, seems hard looking on web pages at the length of there pictures they really don't say full auto or semi.

Will this trigger work in a Ruger SR556? I can't find info anywhere.

Ok….. good advice I have a shotgun bora99/adal1919 with ar15 trigger ( timmy) want to replace it with the echo so it's a no go ? How about the Smith and Wesson mp 15/22 as that's the best I can have in the UK. And no I'm not going to move ! Cheers guys

How about 9mm bolts?

How about that email address Pete or Andrew! Where do I get that?

Will the gen 2 work with a Windham Weaponry 308 rifle?

I installed the echo AR 2 into my tiger AR 556, will it not work on either semi auto or binary mode since it’s not a full auto bolt carrier?

Even though i have the standard full auto bolt carrier, i cant get the upper to close onto the lower even after trying holding the trigger lock in echo mode and reinstalling the trigger, it doesn't hold the lock fully forward, there is a tiny tiny gap between the lock and the rest of the trigger, any advice?

you lighting in your vid sucks

Will an Adams Arms bolt carrier work with the ECHO II?

Would this work on a Springfield Saint

This video filmed with a potato on a vibrating bed in a dentist office.

When I bought my 2 I was told that the 2 would work fine with my Left-hand BCGs. Now you are saying it won't? I use Stag Arms BCGs. I all of my Left-hand ARs around 8 of them.

Totally misunderstood this video the first time I watched it. When I noticed my Sig 516 Patrol’s BCG looked just like the piston BCG in the video, it thought I was good to go, so I ordered one.

Watched your installation videos and was pleased I was able to get everything installed without sending the springs flying like in other videos. Then, was happy everything worked in the dry function tests. Then, my bubble was burst when I mated the upper to the lower. That’s a big fat NO-GO with this working with my Sig AR.

I watched the video again, and although you never came right out and said it wouldn’t work with piston BCGs like the one in the video, you did state very clearly that the cutout was something we would have to pay close attention to. I guess the first time I watched, I heard what I wanted to hear and thought since my BCG cutout was shorter than the standard simi-auto we should be fine.

As I’m sure I won’t have any problems finding someone to buy this one from me, I won’t bother with trying to return it, just a big let down.

Man… I was really excited to add this to my rifle. Thanks anyway guys.

Petes the man, thanks buddy!!!

THANK'S Yeah I had to upgrade my BCG. No compliant's though.

If I upgrade my original echo to the new version will the old proprietary bcg still function with it?

Are all the Fostech bolt carriers full auto?

Will this trigger run a POF P415 piston driven AR15?

Will this work with an LWRC piston setup?