This one looks very pretty.Found a Empty D75 stock a year or so ago ... Used it for a PCP project & it is SWEET
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Diana Diana Model 75 a little disappointing
- Thread starter niam11
- Start date
the Giss system it's self is not hard, tricky yes, you need to know all the tricks but the trigger system on the model 75 that needs to be removed so you can get to the guts is complicated
i have done many model 6 pistol and would i do a model 75 i think not
and they don't not have two cylinders but two pistons
just the seals that need to be put on the piston you will find is a PNTA and the spring are an adventure
here some stuff
https://airgunforums.co.uk/threads/rws-75-full-dismantling-and-assembly-with-user-manual-pdf.39130/
https://forum.vintageairgunsgallery...urces/diana-milbro-airguns-manuals/#post-2239
if you buy red seals and they need to be sized you are in trouble, why there is good way to turn the pistons with there gears and after you fight to install the seals you will never take them off
i have done many model 6 pistol and would i do a model 75 i think not
and they don't not have two cylinders but two pistons
just the seals that need to be put on the piston you will find is a PNTA and the spring are an adventure
here some stuff
https://airgunforums.co.uk/threads/rws-75-full-dismantling-and-assembly-with-user-manual-pdf.39130/
https://forum.vintageairgunsgallery...urces/diana-milbro-airguns-manuals/#post-2239
if you buy red seals and they need to be sized you are in trouble, why there is good way to turn the pistons with there gears and after you fight to install the seals you will never take them off
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Thank you for the information. But, still no no. I won't do it my self for now until someone post a detailed video tutorial. Thanks agian.
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i have never seen one the video
i have 3 model 75's
there is one thing i will tell all of you when buying a Giss System gun
if it is not stated that it has been rebuilt assume it has not, if you ask the seller if it has been rebuilt and they state i don't know assume it has not
if the gun needs to be rebuilt it would cost 200-240 to send it out, if you send it out ask if the stock mis needed if not take it off and keep it safe, if you ship the gun without the stock take special care to protect the trigger because it is just hanging out there
if you know that the gun needs repairing take the damn cost of the repair off the price asked or go under water by paying to much
if you can't live without it oh well it is only money
now parts
Chambers has many parts Knibbs has a few but Waffencenter Gotha has the most but don't get excited the shipping coming out of Germany and or what they charge will take the fun out of it, Enrico at Gotha will take good care of you but you need to do a wire transfer to their bank the last i looked and you have to tell them what you what and they will tell you amount, it is old school and a PNTA
if you get your seal out of ARH they are red and oversized i fought a set in a model +6 years ago for someone that sent them with the pistol never again
now do i know what i am talking about, that is up to you to figure out but i have 16 Giss System pistol and rifles and have been to the bottom of the rabbit hole
there was a time that Joe Rhea bought a model 75 and he had been rebuilding FWB 300's all the time and could do them with his one eye closed
the 75 needed to be rebuilt and he took it all apart got the front piston in and fought the springs and fought the springs and tried this and that and then sent it to a friend to finish he gave up
could i do a rebuild even with what i know maybe
so, just some opinions and thought and hell i don't care what you do but the last thing you what to do is make it a basket case, no one likes to work on them
you will see at Gotha that the stepped washing-space comes in many sizes and you will have one
https://www.waffencenter-gotha.de/shop/DIANA:.:2.html?filter_id=249
if i can help or point you in a direction message me
but remember knowledge is your friend working on these guns without knowing the tricks the short cut, the is this right, the question you will ask yourself many times i can be here to help
do not lose parts, do not break parts take pictures like it is a wedding
and good luck they are a great rifle
mike in Washington state
i have 3 model 75's
there is one thing i will tell all of you when buying a Giss System gun
if it is not stated that it has been rebuilt assume it has not, if you ask the seller if it has been rebuilt and they state i don't know assume it has not
if the gun needs to be rebuilt it would cost 200-240 to send it out, if you send it out ask if the stock mis needed if not take it off and keep it safe, if you ship the gun without the stock take special care to protect the trigger because it is just hanging out there
if you know that the gun needs repairing take the damn cost of the repair off the price asked or go under water by paying to much
if you can't live without it oh well it is only money
now parts
Chambers has many parts Knibbs has a few but Waffencenter Gotha has the most but don't get excited the shipping coming out of Germany and or what they charge will take the fun out of it, Enrico at Gotha will take good care of you but you need to do a wire transfer to their bank the last i looked and you have to tell them what you what and they will tell you amount, it is old school and a PNTA
if you get your seal out of ARH they are red and oversized i fought a set in a model +6 years ago for someone that sent them with the pistol never again
now do i know what i am talking about, that is up to you to figure out but i have 16 Giss System pistol and rifles and have been to the bottom of the rabbit hole
there was a time that Joe Rhea bought a model 75 and he had been rebuilding FWB 300's all the time and could do them with his one eye closed
the 75 needed to be rebuilt and he took it all apart got the front piston in and fought the springs and fought the springs and tried this and that and then sent it to a friend to finish he gave up
could i do a rebuild even with what i know maybe
so, just some opinions and thought and hell i don't care what you do but the last thing you what to do is make it a basket case, no one likes to work on them
you will see at Gotha that the stepped washing-space comes in many sizes and you will have one
https://www.waffencenter-gotha.de/shop/DIANA:.:2.html?filter_id=249
if i can help or point you in a direction message me
but remember knowledge is your friend working on these guns without knowing the tricks the short cut, the is this right, the question you will ask yourself many times i can be here to help
do not lose parts, do not break parts take pictures like it is a wedding
and good luck they are a great rifle
mike in Washington state
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If and when the pre final installed parts are correct in position ... a spring alignment rod sure makes keeping the main spring/s from canting and getting fubar 
... As you mash it all together while you set & clock the 2 main gears.
Lol ... there Fun
... As you mash it all together while you set & clock the 2 main gears.Lol ... there Fun
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