Weihrauch HW35 Tune Kits

You are mistaken, this kit from Germany up to 16J, it means (.177) 820fps (Leistung: bis zu 16 Joule). It is not subject to any restrictions in Europe or Germany.I sometimes buy air guns and spare parts in Germany, there are no problems, the US customs sometimes delays parcels for checking for about a month. Air guns with a power of more than 16J in Europe are considered firearms.
 
Not long ago I put a ARH kit in a HW35. It came out quite nice. Just a hair less power from stock but that was probably because it was dieseling quite a bit when I first got it. The ARH kits have a lot of preload. Prepare to use a spring compressor.
Replace the breech seal and piston seal with their parts too? Gunis over 35 years old and been seldom used…
 
Not long ago I put a ARH kit in a HW35. It came out quite nice. Just a hair less power from stock but that was probably because it was dieseling quite a bit when I first got it. The ARH kits have a lot of preload. Prepare to use a spring compressor.
Replace the breech seal and piston seal with their parts too? Gun is over 35 years old and been seldom used… some recommended Vortek seal but ARH spring…
 
Don’t think so… due to year made… 1987 from serial number search… gun never been disassembled… I am the original owner… purchased in Germany in 1987/1988 time frame
Here's my recommendation. Vortek piston seal, ARH spring kit and only if you need to change it an OE Weihrauch breech seal.
 
Thinking on this and matbe my thinking is wrong , but.

You look at vortek kit. You get a different configured spring that needs there top hat and guide and a sleeve or liner thing that you read around that van cause rubbing or gringing and most just remove it ..

Then arh. You get a drop in spring like the hornet then i think for $5 more a pre set one as well to make it more drop in .

Then just use you original hw guide and piston thrust washer . Then just fit your seal lube it up slap it together go shoot 99% of the time if the seal is fitted correct that gun will be good to go and a consistent shootrr shot after shot.
 
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