[KF Airsoft] CNC Aluminum Slide[For Tokyo Marui HI CAPA GBB Series][BLK]

I bought this product twice.
The first product I purchased was painted black and felt solid.
The second product is painted green and the aluminum is weak, so its durability is already low.
It's only been a few months since I purchased it, but it went off the rails.
The rails are spread due to poor durability.
So there is no gas pressure.
I plan to purchase it again.
I hope the product I first purchased was delivered.
It's definitely a different product.
It's a different product with a similar shape!
I attach a photo.
Please reply.

The first product I purchased was painted black and felt solid.
The second product is painted green and the aluminum is weak, so its durability is already low.
It's only been a few months since I purchased it, but it went off the rails.
The rails are spread due to poor durability.
So there is no gas pressure.
I plan to purchase it again.
I hope the product I first purchased was delivered.
I attach a photo.
Please reply.