Quote:
Originally Posted by wb_1971
as a newb can someone tell me what this is for i went to link and read faq but a little unsure...but in seeing what the pad looked like could you not go to a local hardware store and purchase a rubber washer or something of the sorts that'll do the same thing
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Great question.
Regular rubber doesn't have the same impact damping properties as sorbothane (really just a special formula of urethane), so you're not going get the as much of the protective properties out of rubber.
More info here:
http://www.airsoftstore.ca/index.php...dex&cPath=35_3
The 40D pad is typically used to support up to 400fps.
We used to sell the 40D sorbo pad separate from the neoprene protective pad but we found that because the 40D pad ALONE was softer it didn't hold up as well at the limits (approaching 400fps and/or using crappy piston heads), so we just decided to package them together (Sorbo BUDDY - get it?)
Now you can just get a sorbo buddy 40D for your M90 or M110 spring and it should be good to go. Just make sure you use superglue to stick it all together. Used to be that the only option available was the ARS sorbo pack but that's literally twice the price of the sorbo buddy for the exact same thing less the gluing together. I mean, we could just glue it together but some people don't want the neo pad on it, so the options always there.
I run 70Ds exclusively in all my guns - some with neo pad and some without, just makes my life easier. You'll find the 40D will give a more dull sound signature compared to the 70D - it's less of a slap. It's almost imperceptible but it's there.
Hope that helps.