Well had this happen to me after three years of shooting and it messed up two of my barrel inlets as well. The barrel indexing pin got mashed somehow.

Messed up my barrel inlet bad

Contacted FX for info about how to replace the pin. They got back to me the next day and said the pin could not be replaced and I would have to purchase a new rear block for $148. I figured that was not too bad of a price for all of the machining that that individual part requires. So, tried to order the pin and the two barrel inlets that got messed up as well. They asked me to send them a picture of the block because they needed the serial number.
Once again they got back to me, the very next day, and said they would replace the block under warranty but did not have the barrel inlets. I am at two months past the warranty period so that was kind of them to warranty the block out.
Then I went to airgun101 and to Ernest's shop in the 910airgun tuning and repairs area. He had upgraded barrel inlet units in stock so I ordered and I will be back in business soon.
https://910airguntuningandrepairsllc.com/collections/ernest-rowe-custom-shop
Thanks Ernest for having these available.
FX has not been perfect in my dealings with them but they have always been honest and have straightened things out when they got messed up. I appreciate that very much.

Messed up my barrel inlet bad

Contacted FX for info about how to replace the pin. They got back to me the next day and said the pin could not be replaced and I would have to purchase a new rear block for $148. I figured that was not too bad of a price for all of the machining that that individual part requires. So, tried to order the pin and the two barrel inlets that got messed up as well. They asked me to send them a picture of the block because they needed the serial number.
Once again they got back to me, the very next day, and said they would replace the block under warranty but did not have the barrel inlets. I am at two months past the warranty period so that was kind of them to warranty the block out.
Then I went to airgun101 and to Ernest's shop in the 910airgun tuning and repairs area. He had upgraded barrel inlet units in stock so I ordered and I will be back in business soon.
https://910airguntuningandrepairsllc.com/collections/ernest-rowe-custom-shop
Thanks Ernest for having these available.
FX has not been perfect in my dealings with them but they have always been honest and have straightened things out when they got messed up. I appreciate that very much.