Weak mag springs and last round BHO

[Gardner]

We went to the range today and I took 2 20 rnd mags. One a Colt, the other ASC

With the Colt the bolt didn't lock back on last round, with the ASC it did.

I ran several tests and it definitely was a mag problem. To me it feels like spring pressure is greater with the ASC.

This is a first for me, so I'm going to order a couple of spare springs for 20 rnd mags

 

[nbkky71]

Possibly an issue with the magazine follower? You could try swapping the follower from the known-good mag into the Colt mag and see if the problem persists.

 

[Exspiravit]

Possibly an issue with the magazine follower? You could try swapping the follower from the known-good mag into the Colt mag and see if the problem persists.

Could be this too.

What color follower?

 

[HMP]

What does Barrack have to do with it?

 

[Gardner]

Could be this too.

What color follower?

The follower in the colt is Grey

I just had the opportunity to feel the spring tension in both, in a more controlled environment.

The colt spring is definitely weaker.

ETA: As for swapping followers, I could do that when I have a bit more time

 

[Gardner]

Update: I haven't had time to work on the above problem but I wanted to say that these are 10 rnd mags, not 20

For what it's worth