Possibility of an "Echo" Trigger for the PS90?

Discuss rifles chambered for the 5.7x28mm; P90, PS90, and AR57.
Post Reply
spyderco monkey
Junior Member
Posts: 105
Joined: 16 Sep 2008, 15:17

Possibility of an "Echo" Trigger for the PS90?

Post by spyderco monkey » 27 Jan 2017, 00:26

So theres a new, ATF approved trigger system for the AR called the "Echo" that fires both when the trigger is depressed, and when it is released:

https://www.youtube.com/watch?v=965JBkKDpq8" onclick="window.open(this.href);return false;

For those familiar with the PS90 trigger pack, would this be possible to build? I know I sure would like one.

PursuitSS
Junior Member
Posts: 80
Joined: 15 May 2011, 08:03

Re: Possibility of an "Echo" Trigger for the PS90?

Post by PursuitSS » 28 Jan 2017, 16:45

In theory it shouldn't be a very long reach to achieve this.

As many PS90 owners are aware, the FN PS90 trigger group is almost an exact copy of the Steyr AUG trigger pack, in fact PS90 packs have been retrofitted with AUG parts.

Corvus Definsio Is releasing an aluminum chassis that inserts into the AUG pack and allows the use of an AR trigger assy.

Here is a photo of their prototype installed into an AUG trigger pack....

Image

DoubleJ
Member
Posts: 400
Joined: 10 May 2011, 20:20

Re: Possibility of an "Echo" Trigger for the PS90?

Post by DoubleJ » 30 Jan 2017, 16:41

Don't know about the P90, but I spoke with FosTech about the Echo, and it uses a proprietary bolt carrier to function in an AR. They mentioned some tweaking had been done to get it working with 22LR conversions in the AR, and maybe 9mm conversions, but for now, regular old ARs only. If you could modify that Aug thing to your PS90, you may then have to modify your bolt or carrier or whatever it has to work with the FosTech trigger. If you get that far, let me know, and I'll go buy a PS90 and SBR it right away.

spyderco monkey
Junior Member
Posts: 105
Joined: 16 Sep 2008, 15:17

Re: Possibility of an "Echo" Trigger for the PS90?

Post by spyderco monkey » 30 Jan 2017, 20:44

I was actually thinking it would be some type of modified PS90 trigger pack, rather then using the ECHO.

The PS90 uses the same bolt as the P90, and I believe the Gen 2 and 3 trigger packs had that little hammer safety that prevents hammer follow, which is the core part of the Echo trigger that allows it to function.

I think what would be required is designing either the sear or the hammer to fire both when the trigger is pulled, and when it's released.

For those more familiar with the technical aspect of the PS90, does this sound about right?

PursuitSS
Junior Member
Posts: 80
Joined: 15 May 2011, 08:03

Re: Possibility of an "Echo" Trigger for the PS90?

Post by PursuitSS » 31 Jan 2017, 14:35

The Franklin Armory Gen III Binary Trigger doesn't require a "Trip" for it to operate.

I wasn't even considering the Fostech Echo.

DoubleJ
Member
Posts: 400
Joined: 10 May 2011, 20:20

Re: Possibility of an "Echo" Trigger for the PS90?

Post by DoubleJ » 31 Jan 2017, 15:43

One shot fired per trigger pull, that's the law. If you fire a shot, and then hammer follow causes another shot to be fired, it's off to the poke with you. From what I've seen of the Binary trigger, hammer following, resulting in a cycling of the charging handle and ejecting of a live round, is a big problem. You say Gen III though, so that may have been fixed, I don't recall what generation they were on when I last looked at them. The Echo has no such problem from what I've seen, but I have hands on experience with neither.

CPTKILLER
Junior Member
Posts: 123
Joined: 12 Jul 2009, 18:37
custom title: CPT Killer
Location: Austin, Texas

Re: Possibility of an "Echo" Trigger for the PS90?

Post by CPTKILLER » 01 Feb 2017, 07:59

I won't comment until there are "objective user reviews". New is not always good.

User avatar
panzermk2
Forum Supporter
Posts: 11492
Joined: 19 Aug 2008, 15:51
Location: Around here it's more like what can we shoot through next.
Contact:

Re: Possibility of an "Echo" Trigger for the PS90?

Post by panzermk2 » 01 Feb 2017, 09:27

Taking your finger off the trigger fires the gun.

This level of full on tactifag bullshit is just too much.

Image
Jay Wolf
Pr. Elite Ammunition

"Engineers, the oompa-loompas of science!"
Image
Be'ein Tachbulot Yipol Am Veteshua Berov Yoetz
Image

spyderco monkey
Junior Member
Posts: 105
Joined: 16 Sep 2008, 15:17

Re: Possibility of an "Echo" Trigger for the PS90?

Post by spyderco monkey » 01 Feb 2017, 15:19

panzermk2 wrote:Taking your finger off the trigger fires the gun.

This level of full on tactifag bullshit is just too much.

Image
As I understand it, if you somehow depress the trigger and don't want to fire the second shot, engaging the safety will prevent it from firing.

But as most will simply quickly release the trigger upon firing, it's effectively just a very quick double tap.

I think the safety concerns are overblown, and the potential for this system is understated. On the PS90 this would be incredible (shooting 5.x28 at 700rpm) and if you could figure out a way to make it work, you'd be raking in the coin.

Easily sell a few thousand $450 trigger packs, might be worth keeping an open mind.

DoubleJ
Member
Posts: 400
Joined: 10 May 2011, 20:20

Re: Possibility of an "Echo" Trigger for the PS90?

Post by DoubleJ » 01 Feb 2017, 16:14

spyderco monkey wrote:...

As I understand it, if you somehow depress the trigger and don't want to fire the second shot, engaging the safety will prevent it from firing.

...
This is the way I understand it as well. Tactical, useful, HD, SD - Nope. Fun as hell - Yep. Because of money, I'd probably not do an AR, P90, ect. But would I do a $475 trigger in a registered SBR lower and stick 9mm and 22LR uppers on it? All day, every day. Did a SlideFire 10/22 recently, full on the most fun in my safe, but the brick of ammo I annihilated means I need to play it cool.

Toaster
Junior Member
Posts: 51
Joined: 09 Jun 2016, 20:06

Re: Possibility of an "Echo" Trigger for the PS90?

Post by Toaster » 02 Feb 2017, 03:51

I don't think it's smart, but I think it's silly. Similar to the positive reset triggers

If people would take the effort of making, selling, and buying bullshit products, into pushing legislators and congress to just change the damn thing you're walking around. The world would be a lot better place for all of us, yet I hear almost no talk of it and it's disappointing.

They're SUPPOSED to work for the people. Which every day want more and more suppressed, short, machine guns.

So I'd really like to see someone do something about the actual problem.

This goes in the same bullshit category as bullet buttons, pistol "braces", clipped and pinned lower, striker fire SA smgs. Just shit people put up with rather than fixing the damn problem to get what they want.

Free your second amendment. Remove those BS laws enacted decades ago. This might be the last chance we get. Best not take it for granted.

Oldbindlestiff
Gold Member
Posts: 389
Joined: 22 Apr 2011, 08:13
Location: Newport, TN

Re: Possibility of an "Echo" Trigger for the PS90?

Post by Oldbindlestiff » 02 Feb 2017, 08:32

panzermk2 wrote:Taking your finger off the trigger fires the gun.

This level of full on tactifag bullshit is just too much.

Image
:agree: :clap:

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest