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AT44 Long/BullBoss Fill Cylinder (H) Class

5.01 review
AT44 Long/BullBoss Fill.

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AT44 Long/BullBoss Fill Cylinder (H) Class 

  • Extra air cylinder
  • For AT44 Long and Hatsan Bullboss

No pumps, no tanks, no fittings...just unscrew the empty air reservoir and screw in the filled one! How much easier can it be to take extra air when you go out shooting?

Limited Quantities

Item Code: H-HA90255 [PY-A-8622]

other products by Hatsan

Average Customer Review

5.0 (1 review)
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5.0 5.0

5.0 5.0

By Paul from USA on 2018-09-17
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5.01 rating

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Things I liked: It appears to be a factory cylinder, even the gauge appears to be the same.

Things I would have changed: I see nothing to change.

What others should know: As I said, it appears to be a factory cylinder and works like it was shipped with the air rifle.


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  • Mauricio from USA asked:

    Will this Cylinder work on a AT44-10 Long QE .25 caliber?

    • julio from USA asked:

      How it's this h class different from the other bullboss cylinder?

      • Tyler from USA:

        The valve is different. If an H cylinder is used with an older gun, it may produce lower velocities than with the cylinder that came with the gun.

    Compatible with AT44 Long/BullBoss Fill Cylinder (H) Class

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