This listing is for: 

One (1) complete urethane O-Ring seal kit,
for Crosman models MK-I & MK-II, in  .177 cal. & .22 cal.
  
Enough seals to rebuild one (1) MK in either caliber.          

Five (5) seals are included in this kit:

One (1) piercing body, urethane o-ring seal.
One (1) piercing pin, urethane o-ring seal.   
One (1) .22 cal. breach bolt, urethane o-ring seal.   
One (1) .177 cal. breach bolt, urethane o-ring seal.
One (1) valve body, urethaneo-ring seal.

Urethane offers superior strength, tear and
abrasion resistance.
Included in this sale is a printed copy of an exploded view showing
seal locations, their part numbers, and the E-Z seal ID guide.
This is Exploded view #1, showing the early version with a
lever action piercing cap.    

Contact me if you have any questions.

 Thank you.






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