U notch issue

Hello guys I am new to the forum I hope someone could help me out. I got a 9mm alpine vector. Very
cool looking for sure. But I have a problem. I have a Glock 17 9mm U notch mag. When I insert it I have to smack it in for it to stay. Once I do that the bolt either won't close or I can't rack it back. What gives? Thx

I fixed it. Here is how. Put a 45deg bevel on the front on the mag base pad. But don't cut into the radius's. Now the mag should seat nice and easy. Next look into the chamber while the bolt is back. Slowly push on the bolt release you will see a small tab that is hitting the upper corner on the mag. Trim this area very slightly then test. Once the bolt drops you good to go.

Nice! Thanks for posting your fix.