Converting a Crosman TR77NP .177 to .22 Caliber.

[Hesatramp]

I bought a NIB TR77NP.

I like .177 cal. air rifles for both FPS and accuracy. I also like the .22 caliber air rifle for it's "knock-down" power.

Has anyone converted a TR77NP to be able to swap from .177 to .22 by relatively "quick changing (under a hour)" the barrel?

I believe one of our members might have successfully completed the conversion using OEM Crosman Parts (?).

Thanks in advance for your response,

Chad

[OleTomCat]

Google Crosman manuals and then look spend a few days going over the guns they have there and pick out a barrel and order it from Crosman, best way to figure out if you have the correct barrel is to find your gun's barrel then find a gun offered in both calibers and order the .22 barrel that fits that gun...