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CZ LONG ARMS => CZ AIRGUNS & AIRSOFT REPLICAS => Topic started by: Unregistered(d) on August 26, 2003, 06:17:20 PM

Title: 631 spring?
Post by: Unregistered(d) on August 26, 2003, 06:17:20 PM
Gents,
            the 631 is pretty good and accurate gun. Anybody tried to replace the spring for stronger one?
            The current velocity is about 600fps but I like to increase it.
            Thanks.
Title: 631 spring?
Post by: Fred Flinstone on October 04, 2003, 05:11:38 PM
Beware: Certain countries make air rifles with higher velocities fall into the same category as a firearm.:evil
Title: 631 spring?
Post by: hoodwinked73 on January 13, 2004, 08:55:03 PM
Two Questions.  Did you happen to find the stronger spring for the 631?  I've heard there is one but I'd have to do a bit of digging to come up with the spring.  Second, did you make or are you going to fabricate the spring compressor?
Title: 631 spring?
Post by: n-22MK1 on March 23, 2004, 02:22:43 AM
I haven't purchased one yet but here's a link to a post on the Fun Supply Airgun Forum from some who got one and just installed it.
            www.network54.com/Hide/Fo...1079928655 (http://www.network54.com/Hide/Forum/thread?forumid=79537&messageid=1079928655)
           
              I just checked and he apparently is just selling the springs now but he was selling kit with spring and proper spacer. I have two 631s with his custom brass guides(also, no longer made) in them.
            www.airguns.citymax.com/c...537203.htm (http://www.airguns.citymax.com/catalog/item/251488/537203.htm)
            Price: $ 15.00
            Availability: in stock  
            Prod. Code: N63001
            34 coils x .109" wire - .498 ID
            Requires .850" + spacing to be put in the piston.
            Use Delrin or Nylon
           
           
Title: 631 spring?
Post by: n-22MK1 on March 23, 2004, 02:32:42 AM
.... in previous reply. I just found it scrolling fruther down the page.
            www.airguns.citymax.com/c...554282.htm (http://www.airguns.citymax.com/catalog/item/251488/554282.htm)
Title: 631 spring?
Post by: Unregistered(d) on March 23, 2004, 01:06:39 PM
stronger springs for Slavia are available at
Title: 631 spring?
Post by: Unregistered(d) on March 23, 2004, 01:11:32 PM
Check on gunbroker.com and auctionarms.com - go to airgun section, you will find them there
Title: 631 spring?
Post by: dixda on March 23, 2004, 09:41:25 PM
Jim Maccari springs are probably the best that you can buy. I have a kit (spring and spacer) in my 630. And what a difference,more power,and no twang. I have his springs in other guns of mine and find them far superior to factory.KD