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CZ LONG ARMS => CZ Scorpion EVO => Topic started by: Antmistr on December 13, 2018, 03:42:30 AM

Title: Stiff charging handle
Post by: Antmistr on December 13, 2018, 03:42:30 AM
I have a scorpion pistol, I’ve had it a while but have only put a few mags through it. I’ve noticed that charging it is very difficult and it tends to get stuck especially when moving it slow. I’ve taken it apart and found the issue is that the hammer doesn’t quite clear the two things sticking up (sorry don’t know the names, I think one is the disconnect.) If I pull the trigger slightly so it can clear it easier, it racks fine. Any solutions?
Title: Re: Stiff charging handle
Post by: John A. on December 13, 2018, 11:22:50 AM
Is the selector in the fire position or safe?
Title: Re: Stiff charging handle
Post by: Antmistr on December 13, 2018, 05:36:34 PM
It’s in the fire position. It just seems to have a spec of extra material on the dissconnect and other part to slow the hammer down. Like I said if I pull the trigger slightly it moves the parts and the hammer cocks fine.
Title: Re: Stiff charging handle
Post by: Asylum9 on December 14, 2018, 02:20:06 AM
Is your trigger pack screw tight? The hex screw right in front of the trigger.
Title: Re: Stiff charging handle
Post by: Antmistr on December 14, 2018, 03:21:26 AM
It’s welded, I haven’t changed anything related to the trigger.
Title: Re: Stiff charging handle
Post by: Asylum9 on December 14, 2018, 12:14:38 PM
The only other thing I can think of is check the charging handle, there's a little spring at the end of the rod. Mine was bent and digging into the charging handle tunnel.
Another option would be to remove the lower then charge it and see it it still happens. You can watch the recoil spring and rod also.
Title: Re: Stiff charging handle
Post by: Antmistr on December 14, 2018, 04:31:56 PM
Like I said before it’s the hammer is catching on the dissconnect and other part. I’ve taken it apart and even together if I pull the trigger slightly it charges fine. I’ll try to upload photos.
Title: Re: Stiff charging handle
Post by: Antmistr on December 14, 2018, 04:40:36 PM
Here’s the links for the photos, I circled the problem area in red.

http://imgur.com/IpiOt5P
http://imgur.com/7RlZvbr
Title: Re: Stiff charging handle
Post by: Asylum9 on December 14, 2018, 09:23:20 PM
I don't know what to tell ya boss. Those look like Normal wear marks to me and shouldn't make it hard to charge. But I'm not a professional gun Smith and your issue  seems beyond my capabilities.
Title: Re: Stiff charging handle
Post by: sergetexan on December 15, 2018, 01:10:41 AM
I experienced the same issue with my scorpion, it catches about 1/2 way when engaging the hammer, I called cz and they suggested I put 300-400 rounds thru before repair request. It is much better now, still a little stiff and noticeable when pulling very slow, otherwise it is functioning fine, I am watching for excessive or unusual wear. I also changed out to a larger charging handle which provided more leverage. I think I have some tolerance issues that usage will break in over time. I would have preferred a silky smooth slide but for whatever reasons cz may not have the consistent quality control that I have experienced from other manufacturers. Please keep us updated, thanks for the pics.
Title: Re: Stiff charging handle
Post by: OpusXJ on December 16, 2018, 01:13:00 AM
It's not an issue, just the way it's designed, similar to an AK. Just shoot the darn gun, eat some spinach and don't worry about it.
Title: Re: Stiff charging handle
Post by: KinKzoo on December 26, 2018, 03:12:04 AM
Yeah, mine is the same way as well... Slow pull and about 1/2 way it takes 3-4x the effort to finish racking it...

Don't rack it slow, rack it like a man with a mission and it will be fine...
Title: Re: Stiff charging handle
Post by: Eschendorf on December 29, 2018, 07:55:11 AM
I believe it is he bolt-hammer interface, the bolt pushing back on the hammer.  Once the action is set (hammer cocked), no problem. As previously stated, once you get a few hundred o more rounds it may lighten up.  Only time will tell.  Meanwhile, enjoy and keep shooting. 
Title: Re: Stiff charging handle
Post by: TwelveFourTwo on December 30, 2018, 03:11:24 PM

Don't rack it slow, rack it like a man with a mission and it will be fine...

I thought mine was tough at first, the I just started doing this.
Title: Re: Stiff charging handle
Post by: woodstock31 on January 03, 2019, 01:45:23 AM
Mine is new with low round count. The charging handle is sluggish and seems to "bind" even when I have removed the bolt group. It's almost like it sticks in the channel. Is this what others have seen?
Title: Re: Stiff charging handle
Post by: deaddixon on January 03, 2019, 11:03:45 AM
mine was pretty stiff also, I left it racked over night for a couple of nights and that helped a little after I put the HBI hand guard on, it really loosened up.  you really have rack it with some force  when it is new though. it should get better with time 
Title: Re: Stiff charging handle
Post by: Racerkan on January 09, 2019, 01:55:07 AM
Mine has 1000 rounds, just did a trigger job and applied some grease on top of hammer.  It feel much smoother now.
Title: Re: Stiff charging handle
Post by: Shorty Lickens on January 11, 2019, 03:49:11 PM
White lithium grease.

Its safe and it works really well. Keep a small tube in your bag and a large tube in your workbench.