Kjw p226 maple leaf inner barrel mod
 

Hello, i bought already 2 maple leaf barrels
The first was 97mm 6.02
The second one 100mm 6.02
Both of them making me trouble
As you can see in the pictures I can?t close the chamber on the barrel, what cause it and what should I do?
https://ibb.co/6vNqF6x
https://ibb.co/q7hmXBT