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Piston Seals for B3 Chinese Air Rifles (2 pack)
Original factory replacement spare parts for Chinese B3 air rifles. Archer Airguns.
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Our Price: $15.99

Availability:: Usually Ships in 2 to 3 Business Days


Pack of two replacement main piston seals for Chinese B3 air rifles. These parts were manufactured by Shanghai Airguns and fit current and recent production examples of this airgun.

Requires an airgun spring compressor and specific knowledge to install. Do NOT buy unless you have the appropriate equipment and understanding to do this.

DO NOT DISASSEMBLE your air rifle for any reason unless you know what to do and how to do it safely. You may risk serious injury or even death! If you have any doubts, you should contact a professional airgunsmith. Dis-assembling the air rifle will invalidate the warranty on your air rifle.

Archer Airguns cannot provide support for fitting this parts kit.

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 1 Write a review:

  0 of 0 people found the following review helpful:
5 of 5 Chinese B3 Seal Conversion July 10, 2021
Reviewer: William Searfoss from Tennessee  
I have two Chinese  B3 rifles, one a .177 and the other a .22., both had leather piston seals.   I shoot targets  in my basement, and the vapor from the leather seal oil got to be too much and my accuracy was getting inconsistent .  I bought these synthetic seals and made adapters to install them on my pistons.  So far both rifles shoot much cleaner and more consistent.  This is what I machined my adapters to:  big end 20.5MM, little end 18MM, 3MM boss on the 20.5MM, and the overall length of 6MM with a 5MM counter sunk hole through.  Maybe this could be helpful.

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