- Location
- Coquitlam BC
They should almost shoot out. They use the spring in the mag to do this. Maybe your mag is gunked up inside with carbon and fouling. I always lube and clean my mags every thousand rounds.
Is this your problem?
Easy fix
This is exactly the reason why mags don't drop out.
Happens a lot with the new followers stamped with the number 9.
All 5 mags drop free on my M&P40 . Are you using S&W mags or aftermarket??
Weird - we have 7 M&P's in the household and no issues with mags dropping.



























