Seal fits same guns as the small apex seal (24) size- Most without sizing.
New. This seal is made from a tough new material
that lets it be sized by even a novice and will
handle even hotter springs than the factory. If
your a pro at resizing seals then you do just as
you normally would. This seal is ideal for varied
toleranced runs of guns. Or suitable for the Pro
FT guy that wants a perfection fit and also to
adjust velocity to his preferred level through
sizing. On non AA guns this fits all the guns the
Apex small seal does without modification.
Always install seal before sizing- unless its
impossible without damage.
If not follow these basic instructions. ( These
can be adapted to your personal experience and
tools you have available)
First take the new seal unmodified with some moly
paste or Webley seal oil and put the new seal in
the gun. ( I do not even put the action back in
the stock, saves time and if your careful it's not
a problem. However I have been doing this for 25
years-so do what your comfortable with.)
Next fire 5 shots to set the seal. Chrono it and
see where its at. If it's where it should be-leave
it alone. If not remove it from the gun and it
will show you a dark line just at the front edge
or just behind it. Use an abrasive cloth (180-220 grit) to make the mark disappear
( test it in the
compression tube a few times to see how it feels)
When its snug and not loose or too tight then put
it back in the gun and fire a few shots to settle
it in. If its close to where it should be, leave
it alone as it will pick up in power down the road.
The seal can be sized on a lathe or in a electric
hand drill or using a dremel tool if super
careful. (Or just by rotating it in your hand
against the abrasive-best if fitted to the piston.
Keep the natural seal contours as they are)You
should get a semi gloss edge on your newly sized
seal. This material sizes super well and very
little effort is required.
The picture shows a rare condition where the last
two inches of compression tube towards the port
had a bulge in it that made seal fitting a no win
proposition. So I had to remove the bulge and
resize the Tesla seal to fit. A gain of 65 fps
took place in a 22 HC.