Carver Custom Big Mouth M&P 1.0 warning

[PostsOnPercocet]

Sigh....I was really looking forward to getting this. I got it installed five minutes ago. Doesn’t fit any of my mags. Not my factory full capacity stock baseplate mags. Not aftermarket stock baseplate mags. Not full capacity mags with Arredondo +5 extensions. Nothing.

The website says all of them should fit. And I’m positive I have it installed correctly. I emailed them. I’m not putting them on blast, just warning everyone else.

I really want this to work. I’d rather avoid taking material off of my baseplates. I wonder if I should take material off the Carver.

What do you guys think?

 

[PostsOnPercocet]

Update. I unloaded one of the mags with the Arredondo and really hit it hard and it seated. Looks like I’ll file some material off the Carver.

 

[Saudade]

From the website at: CARVER Heavy Open Magwell for M&P


No modifications needed to install on your M&P 98% of the time. Since the receivers are polymer and molded, sometimes the length of the receiver is slightly out of spec. When this occurs, the magwell will not fit properly against the receiver and stock magazines may not seat properly. When the receiver is out of spec and too long, it will not allow the magwell to seat high enough to allow the magazine to lock into place. To resolve this issue, you may need to do the following:

Remove the magwell

Use a medium to fine grit sandpaper, laying it on a flat surface

Holding the sandpaper with your left hand and the receiver with your right hand (visa versa if left handed), slide the receiver, holding it square on the sandpaper, about 3-4 times. If you are not removing any polymer, you may need to add more pressure when sliding

Reinstall the magwell and test your magazine seating

If the magazine doesn't seat but almost seats, you may need to repeat #3

 

[PostsOnPercocet]

Well, I took enough off from the gun and the flare to get the Arredondo extensions to work. Stock ones don’t but no big deal I guess since I’ve got more Arredondo extensions coming in the mail. It’s nice but I can’t in good conscious recommend these to anyone since the website clearly states it’ll work with a wide variety of stock and aftermarket extensions.

 

[PostsOnPercocet]

From the website at: CARVER Heavy Open Magwell for M&P


No modifications needed to install on your M&P 98% of the time. Since the receivers are polymer and molded, sometimes the length of the receiver is slightly out of spec. When this occurs, the magwell will not fit properly against the receiver and stock magazines may not seat properly. When the receiver is out of spec and too long, it will not allow the magwell to seat high enough to allow the magazine to lock into place. To resolve this issue, you may need to do the following:

Remove the magwell

Use a medium to fine grit sandpaper, laying it on a flat surface

Holding the sandpaper with your left hand and the receiver with your right hand (visa versa if left handed), slide the receiver, holding it square on the sandpaper, about 3-4 times. If you are not removing any polymer, you may need to add more pressure when sliding

Reinstall the magwell and test your magazine seating

If the magazine doesn't seat but almost seats, you may need to repeat #3

Yeah.....sandpaper? No. Lol....no. A file. A lot of filing and even with that it only works with the aftermarket extensions.

On a related note, these polymer frames really vary that much?

Antes, hope all of you have a great weekend. I can’t try this until Sunday maybe or maybe next weekend. Daughters fifth birthday party is tomorrow