Date: 12/12/2018 22:1
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Crosman Piston Seal, Fits NPSS, New NPS & Older Vantage Air Rifles

5.01 review
Crosman Piston Seal.

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1-year limited warranty

PY-A-5203

$4.95

List Price $5.94 Save $0.99 (16%)

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  • Description
  • Customer reviews
  • Q & A: 6 answered questions
  • Crosman piston seal
  • Fits NPSS, newer NPS and older-style Vantage air rifles
  • Original equipment manufacturer part


The right seal for your Crosman air rifle to bring it back to spec.

In stock


Item Code: CRS5177-012 [PY-A-5203]

other products by Crosman

Average Customer Review

5.0 (1 review)
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5.0 5.0

5.0 5.0

By Gary from USA on 2018-03-05
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Things I liked: I installed this seal in my Benjamin Steel Eagle .22 & the Feet per second went from 730 fps to average 800 FPS.

Things I would have changed: The plastic cap at the rear of the receiver breaks from the recoil and the pieces fell into the chamber and damaged the edges of the seal and reduced the power ..that is what happened to mine.

What others should know: This Benjamin Steel Eagle .22 is a real pleasure to shoot because of the excellent accuracy. In a perfect airgun world I would rather have an increase in power to above 850 FPS..I may try installing the Giga power gas ram..I tried the Mega @ 140 atm. and it lowered the power I have now to around 700 FPS so may try the 170 atm.. not really sure if it will take it above the 800 FPS it is NOW! Which is actually pretty good power. However 850-940 is my preference.

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  • Terry from USA asked:

    So after the yes/no answer previously, does this seal replace the factory seal on an NP2?

    • Chevota from USA:

      This is the factory Benjamin/Crosman seal for the NP2. The Cory at the very bottom is incorrect. Everything I wrote below is accurate. It can be confusing with all the models, and to make it worse the factory NP2 parts list doesn't show the NP2 seal part #, but this is it.

  • Franco from USA asked:

    It works for Crosman F4, .177 Nitropiston? thank you

  • Jared from USA asked:

    What is the diameter of this seal?

    • Chevota from USA:

      It's ~1.15" OD. Thickness ~.260". Hole ID is ~.650 and .750" and the small and large ends. It's meant to fit a 29mm bore but the hole is too big for the Trail XL. >>>>> If anyone is wondering, yes this is what the NP2 uses <<<<<

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Compatible with Crosman Piston Seal, Fits NPSS, New NPS & Older Vantage Air Rifles

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