AR308 (AR10 not armalite) lower issues

[itchyTF]

I put in a Strike Industries AR-10 extended bolt catch compatible with DPMS pattern lowers which I believe my AMT is. The tab that contacts the rear of the mag follower isn't wide or long enough. Anybody have this kind of problem? Any suggestions?

PMag with follower down -



PMag with bolt catch stuck behind follower -


PMag with follower up not really engaging bolt catch -


Hex Mag with follower up barely making it -

 

[mac86951]

Welcome to LR 308; nothing is universal, it's all custom fit. Not unusual to need a custom bolt catch. Also not unusual to hear PMAGs don't work with XYZ lower.

Great pics; I see a quick weld and grind to build up the bolt catch? Or try a new mag, I'd recommend metal, thinner wall, thicker follower.

Or try a different bolt catch, I'm not recommending one, they're all hand fit items.

-Mac

 

[Hino895]

Itchy I’m with Mac on this.
I have a matrix arms AR10 with the same problem.
I’ve tried 3 different catches and settled on the best of the three but it’s still not super reliable on bolt hold back.

 

[itchyTF]

Welcome to LR 308; nothing is universal, it's all custom fit. Not unusual to need a custom bolt catch. Also not unusual to hear PMAGs don't work with XYZ lower.

Great pics; I see a quick weld and grind to build up the bolt catch? Or try a new mag, I'd recommend metal, thinner wall, thicker follower.

Or try a different bolt catch, I'm not recommending one, they're all hand fit items.

-Mac

Pics were done with Teslong. I have mig, not tig. Trying to put a small blob with mig would be a problem (for me). I thought these were hardened. Wondering if welding would mess that up.
I have metal mags but their followers are worse. Was thinking of modifying and 3D printing them. But since I’m having knee replacement surgery this morning, that will take a while.

 

[mac86951]

Pics were done with Teslong. I have mig, not tig. Trying to put a small blob with mig would be a problem (for me). I thought these were hardened. Wondering if welding would mess that up.
I have metal mags but their followers are worse. Was thinking of modifying and 3D printing them. But since I’m having knee replacement surgery this morning, that will take a while.

There's another option, if you share your images with Strike Industries for product improvement; you may get good results. Who's to say the one you've received is within dimensional tolerances of their design, or perhaps they may branch out with a repair.


I'm curious, what lower do you have? DPMS style is a wide plain, i have some DPMS style.lowers that use a DPMS kit, some that are AR-10 bolt catches, and there are yet others with their own solutions, like the Aero M5.

-Mac

 

[itchyTF]

There's another option, if you share your images with Strike Industries for product improvement; you may get good results. Who's to say the one you've received is within dimensional tolerances of their design, or perhaps they may branch out with a repair.


I'm curious, what lower do you have? DPMS style is a wide plain, i have some DPMS style.lowers that use a DPMS kit, some that are AR-10 bolt catches, and there are yet others with their own solutions, like the Aero M5.

-Mac

I will reach out to Strike. For some reason I I didn’t think of that. My lower is an AMT. I did reach out to them but haven’t heard back yet.

 

[TTE]

I’m having knee replacement surgery this morning

Good luck. Hope you have a quick recovery

 

[Twdmar]

A little blob of mig weld will be fine and plenty hard. You might even be well off putting in the oven afterward to make it a little less brittle.

 

[ben lurkin]

I had to modify the follower on my DPMS. You need to remove some material from the LH side of the follower so it'll push the bolt catch up all the way.



(Photo Credit Brian Enos)

 

[itchyTF]

My issue seems to be that the tab on the bolt catch isn’t log enough. As you can see in the original post’s pictures that the tab barely contacts the rear of the follower. I think the follower comes up ok, it just doesn’t engage the tab on the bolt catch.

I may have to try to put a blob on that tab with the MIG welder.

There is way too much slop between follower and the steel magazines I have. Such that the bolt catch tab doesn’t engage the follower at all.