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1-year limited warranty
List Price $49.95 Save $20.00 (40%)
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Estimated in-stock date 06-10-20
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Replacement Crosman Nitro Piston
This is a replacement unit that fits the Benjamin Trail NP and Crosman Nitro Venom air rifles.
For professional installation only. Instructions NOT included.
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Things I liked: Installed this on an original Benjamin nitro piston synthetic stock air rifle along with a new seal. Used super lube 100% silicone lube for the seal. Great improvement over the stock gas spring. I baked on a Teflon/moly epoxy coat on the piston that the seal is installed on. This coating is self lubricating due to the Teflon moly. Super lube worked well with the seal, although it is thick like honey (doesn't take much). Rifle absolutely loves the H & N copper spitzkugel very accurate out to 50 yards if the wind isn't blowing. Overall very satisfied with pyramid air. Had only 1 complaint.
Things I would have changed: None
What others should know: If you buy the cr piston for the plain Benjamin nitro trail. The piston rod is larger than the original and will not fit in the machined recess for the piston. (Original was machined to a smaller diameter to mate in the piston recess). My solution was to grind down the 1st 3/8" to more of a point to fit in the machined recess. My piston rod fits tight in the recess and I haven't had any problems. One thing I did to accurize my Benjamin was to recrown the barrel with a brass screw and automotive valve grinding compound. Made big difference in accuracy, factory crown wasn't done well.
Things I liked: Easy to change and seems better than the original. Will be interesting to see how long it last (the factory one did not last very well). Price is a little steep.
Things I would have changed: Lower the cost
Things I liked: Fast shipping. Don't know if it will fit. Have not installed it yet.
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Hi I recently purchased a used Benjamin trail np2 and I was wondering which piston seal it uses. I have a crs5177-012 on hand can you inform me please.
That information would have to come from Crosman.
Was wondering if the BT9M will work with a Crossman Fire nitro piston. It's running the smaller piston from factory.
Yes it will but you need to be sure you don't already have it. If you have the BT5 spring then this will bump power and it may exceed the 500fps CA limit. Fyi they usually use a longer piston for CA guns. The spring itself is basically the same size. So be sure you use the correct nomenclature or it gets confusing. Crosman says "Nitro Piston" because it sounds cool, but in their parts list it has the correct names. The part sold here is a spring, not a piston.
What do I need for this ram including the back guide? Or it's part number?
If you're converting a typical Crosman coil spring gun to gas spring it's pretty easy to do and no additional parts are needed. You do have to modify one part, but it would be much easier to just let me send the info with detailed pix and arrows etc. chevota at hotmail and tell me what gun it is and remind me what you're doing to it and I'll send a generic info pkg
We do not have parts for Benjamin/Crosman breakbarrels. There are parts diagrams on Crosman's website.