Walther GSP mount problem
+3
JKR
Jon Eulette
estuck
7 posters
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Walther GSP mount problem
My nephew recently purchased a new Walther GSP Expert .22 with a Champions Choice mount. He installed an Ultradot with their rings. He is having trouble keeping the mount tight. The set screws were tightened and Loctite applied, and it still loosens after approximately 100 rounds. The mount was initially installed by Champions Choice when it was shipped. Anyone have suggestions? One of our leagues shooters wants to drill and tap the receiver , however I think that is a bad idea as the metal is too thin.
estuck- Posts : 134
Join date : 2015-01-03
Location : Michigan
Re: Walther GSP mount problem
I’ll have to dig mine out, but I believe steel on top of receiver is thicker underneath the sight. That’s where I drilled and tapped mine.
Jon
Jon
Jon Eulette- Posts : 4399
Join date : 2013-04-15
Location : Southern Kalifornia
Re: Walther GSP mount problem
I drilled and tapped mine for a Weaver base ahead of the rear sight. This allows me to take off the dot and use the irons.
I hated the base that replaced the rear sight because it set the dot sight so high on the pistol. It worked fine however. I had no problems with it coming loose.
JKR
I hated the base that replaced the rear sight because it set the dot sight so high on the pistol. It worked fine however. I had no problems with it coming loose.
JKR
JKR- Posts : 763
Join date : 2015-01-13
Location : Northern Wisconsin
Re: Walther GSP mount problem
Which Weaver base did you use?
estuck- Posts : 134
Join date : 2015-01-03
Location : Michigan
Ditto JKR
Like JKR, I drilled & tapped a low Weaver style base 5/8" in front of the rear sight (an earlier Weigand 10/22 base-could only use 3 screws). can shoot the iron sights over it. Trick is to get the screws the right length. I tapped the holes just to the point where the screws got a little snug as they neared the bottom of the hole-then blue loctite -- I use a Sig Romeo5 red dot sight which had to be filed a little to clear between the base & pistol. So far so good, but I haven't shot the pistol that much.
2¢ - YMMV
Check with your Pistol smith 1st? - - - Russ
ps: W/ the red dot sight on it, the GSP IS A TANK (heavy) - ppss the pistol has a great trigger.
2¢ - YMMV
Check with your Pistol smith 1st? - - - Russ
ps: W/ the red dot sight on it, the GSP IS A TANK (heavy) - ppss the pistol has a great trigger.
Russ OR- Posts : 265
Join date : 2011-06-10
Location : Oregon City, OR
Re: Walther GSP mount problem
I’m not sure. Might’ve been for a 336 Marlin rifle. I had to shorten it. I think any base for a flat receiver could be adapted.Lestuck wrote:Which Weaver base did you use?
I agree with Russ. It’s a heavy pistol with a scope on it!
I’ve owned several high end target pistols and I’ll say that this one is the most reliable of any I own. “Tank” is a great description, Russ!
JKR
JKR- Posts : 763
Join date : 2015-01-13
Location : Northern Wisconsin
Re: Walther GSP mount problem
Biggest weakness of the GSP is no consideration to optics mounting. [2nd is bbl twist / 50 yard limitations.]
Wanted to drill and tap mine since Day 1 but have been living with it.
I had to use retaining compound on the rear sight pins as one kept walking out on me.
Gotta love the Germans.
Wanted to drill and tap mine since Day 1 but have been living with it.
I had to use retaining compound on the rear sight pins as one kept walking out on me.
Gotta love the Germans.
jmoser- Posts : 5
Join date : 2022-02-17
Sight Base
I realize this post is a little dated, but you can buy a Optic Sight Base that is specifically designed for the Walther GSP Expert. They are available on the carlwalther.com website. If you have trouble finding it on the website, you can call or email them and they'll help. To mount it, you have to remove the rear sight and there are two pins that are tapped into the upper receiver. It would likely be pretty difficult to remove the Sight Base and put the original rear sight back on, but I have had mine on the .32 for several years and in is as solid now as the day I installed it.
mbtimmons- Posts : 25
Join date : 2023-07-20
Re: Walther GSP mount problem
I have reinstalled the original rear sight on my GSP Expert after removing the Optic Sight Base with the two pins. It's fairly easy to remove the sight base by loosening the screws then tapping out the two pins.
If you record how the original rear sight was removed (pictures help) it's not too hard to replace. Don't lose any parts!
If you record how the original rear sight was removed (pictures help) it's not too hard to replace. Don't lose any parts!
wascanapistol- Posts : 20
Join date : 2022-06-25
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