Author Topic: EAA WITNESS SLIDE STOP AND SAFETY QUESTIONS  (Read 1251 times)

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Offline Diocletian

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EAA WITNESS SLIDE STOP AND SAFETY QUESTIONS
« on: August 02, 2022, 08:10:44 PM »
Hey everyone you all helped me with my last build I was doing it was a 9mm witness/sar arms it came out good.. I had a couple easy issues that I got help with here.

So I have 2 questions.. I'm doing a 45 was witness P

The slide stop doesn't seem to have any spring tension I was thinking.. it really doesn't need it so maybe the witness and sar arms didn't? I have the spring in properly I thought it was for 2 things to lock the slide stop in because that's the lockup and second to give the slide stop downward tension like other pistols..

The only thing the downward tension does is uf the slides locked to the rear instead of flipping or triggering the slide stop..  (I suppose it would assist in unlocking the slide by helping your thumb) if you pulled the slide backwards a little it down drop the slide stop to allow the slide forward without tension you loose that.. along with the assistance of using your thumb to engage the slide stop to release it..

Anyway if it's supposed to have tension on the slide can someone show me a picture of how that slide stop and spring are set up?


My next question is on the last build I used a sar arms safety lever and now I'm building a witness with 100% witness parts there's a little spring in the pin/back of the safety lever.. what does that do? Where does it go? What does it engage with? A picture with that would also be useful.

Thanks so much I appreciate any help.

Offline jwc007

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Re: EAA WITNESS SLIDE STOP AND SAFETY QUESTIONS
« Reply #1 on: August 03, 2022, 03:42:38 AM »
Not quite understanding the questions, but here goes.

The Slide Stop is activated by the Spring Pressure on the Magazine Follower and it's Shelf, which presses up on the Slide Stop to Lock Back the Slide AFTER the last round has been fired.
No other Spring Pressure is needed to activate the Slide Stop.  Note That the Slide Stop Retention Spring provides tension against the Flat on the end of the Slide Stop shaft to keep the Slide Stop from prematurely engaging the Slide under Recoil.

As for the Spring you speak of, which I believe to be the Sear Spring, it's short side will butt up against the Bottom of the Sear Cage to provide leverage while the longer part retains the Shaft of the Safety, and fits in the Groove on the Shaft of the Safety.

I hope that this answers your questions.

You may find the Videos below to be of some use.

https://youtu.be/TQ18jwe2QoY

https://youtu.be/2tf_jmfLzq0

https://youtu.be/MK7j3fD3H2Y

Hope this helps!

« Last Edit: August 03, 2022, 03:51:33 AM by jwc007 »
"Easy is the path to wisdom for those not blinded by ego." - Yoda


For all of those killed by a 9mm: "Get up! You are not dead! You were shot with a useless cartridge!"

Offline Diocletian

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Re: EAA WITNESS SLIDE STOP AND SAFETY QUESTIONS
« Reply #2 on: August 03, 2022, 04:49:22 PM »
Not quite understanding the questions, but here goes.

The Slide Stop is activated by the Spring Pressure on the Magazine Follower and it's Shelf, which presses up on the Slide Stop to Lock Back the Slide AFTER the last round has been fired.
No other Spring Pressure is needed to activate the Slide Stop.  Note That the Slide Stop Retention Spring provides tension against the Flat on the end of the Slide Stop shaft to keep the Slide Stop from prematurely engaging the Slide under Recoil.

As for the Spring you speak of, which I believe to be the Sear Spring, it's short side will butt up against the Bottom of the Sear Cage to provide leverage while the longer part retains the Shaft of the Safety, and fits in the Groove on the Shaft of the Safety.

I hope that this answers your questions.

You may find the Videos below to be of some use.

https://youtu.be/TQ18jwe2QoY

https://youtu.be/2tf_jmfLzq0

https://youtu.be/MK7j3fD3H2Y

Hope this helps!

Hey thanks for getting back to me.. I'll try to explain tbis different.

The slide stop question...  if you flip the slide stop upwards should there be any spring tension flipping it back down?

For example on a glock if you flip the slide stop up.. it shoots back down unless the slide physically grabs it because of the downward tension..

I'm assuming the witness/cz75 clones don't have any spring tension that would cause the slide stop to what to "boooyiing" and flip down.. lol

As it is now.. my slide stop only "deactivates" from manually action.. if you shoot the last round.. It locks back and you remove the mag.. if you where to pull the slide back a little further the slide stop doesn't drop.. it'll stay on alot of other pistols because of that downward spring tension on the slide stop if you where to pull the slide back a little it'll lose contact with the catch and the spring tension will drop the slide stop.. my sar arms/witness build doesn't do that and neither does the 45 witness P I'm building.

The safety on the witness has a spring that looks kinda like a detent type spring on the back side of the safety lever it's basically at the base of the pin where it comes out of the safety it gas no contact with the sear or sear cage it would be inside the wall of the frame if you compressed the spring somehow and pushed the safety on all the way.  That's the spring I have no idea what it does or why it's there..



There's the spring.. on the last build I did I used some sar arms parts the sar arms safety didn't have this spring.. I don't see what.it could do the.pyrpose or point of it..
« Last Edit: August 03, 2022, 05:03:55 PM by Diocletian »

Offline jwc007

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Re: EAA WITNESS SLIDE STOP AND SAFETY QUESTIONS
« Reply #3 on: August 04, 2022, 04:33:03 PM »
The slide stop question...  if you flip the slide stop upwards should there be any spring tension flipping it back down?

Yes!  With the Slide and Barrel Assembly out of the Frame, install the Slide Stop. Manually push it up and release it.
The Frame Slide Stop Retention Spring SHOULD push it back down. If not, replace the Frame Slide Stop Retention Spring.

The safety on the witness has a spring that looks kinda like a detent type spring on the back side of the safety lever it's basically at the base of the pin where it comes out of the safety it gas no contact with the sear or sear cage it would be inside the wall of the frame if you compressed the spring somehow and pushed the safety on all the way.  That's the spring I have no idea what it does or why it's there..

There's the spring.. on the last build I did I used some sar arms parts the sar arms safety didn't have this spring.. I don't see what.it could do the.pyrpose or point of it..

Some early versions of the Tanfoglio and and Tanfoglio based Pistols used a Ball Detent over that Spring and mated with a ball recess in the frame. If your Frame has no mating recesses, then you have the wrong Safety. Newer, post Series 88 Tanfoglio Pistols use only the Ball Detent in the Safety Lever Blade and mate with the recesses on the outside Frame.
"Easy is the path to wisdom for those not blinded by ego." - Yoda


For all of those killed by a 9mm: "Get up! You are not dead! You were shot with a useless cartridge!"