Leshiy 2 cycling issue still!

Made in UK, does the adapter use a snap ring to set barrel position?

If so, just taking burrs off both sides of it will let the barrel assembly seat further forward.

Dave
No snap ring. Just a shoulder like the new barrels. I’m going to try and polish the surface a little As to not remove too much material and see how it does. Wish there was a way of measuring it compared to the alpha barrel to see how much needs to be taken down.
 
With the gun closed and using the adapter on a barrel can you rotate the magazine?
I can, but it doesn’t feel as easy as my .22. Sometimes it does cycle, but not every time. The second I put in the .25 alpha barrel, I unloaded a mag in rapid fire, and it cycled flawlessly. The barrel is the weakest link. Just don’t know how much to take off.
 
I can, but it doesn’t feel as easy as my .22. Sometimes it does cycle, but not every time. The second I put in the .25 alpha barrel, I unloaded a mag in rapid fire, and it cycled flawlessly. The barrel is the weakest link. Just don’t know how much to take off.
Start with .3mm. I bet that's all it needs.