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FPB no longer working - sear wear?


hav3n

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Hi all,

 

I have installed:

 

xtreme sear

BOLO

Titan Hammer

Extended firing pin block

PD firing pin

reduced and regular power sear spring (tried both - originally reduced power was in)

 

Initially after I installed the extended FPB I was able to push on my firing pin with the hammer back and it would catch correctly (manual safety off).

Now when I push on my firing pin I'll get a little resistance (2lbs or so) and then the firing pin goes forward.

 

Taking a look at the top of my sear where it engages the XFPB I see that it has a flat point on the right arm. 

 

 

Did i wear out the sear? 

Did i wear out the XFPB?

 

Round count is probably 7000 or so on these parts.

 

How do I fix this?

 

Thanks.

IMG_7384.JPG

Edited by hav3n
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  • 3 weeks later...
On 8/12/2017 at 11:50 PM, johnbu said:

Id bet you DID NOT correctly fit the xfpb and the firing pin has been slamming into it. Look at the fpb and firing pin.

 

New fpb and firing pin will fix it ... if that is the case.

 

Ok help me out here...OK. So basically it seems that these tolerances are too tight to have a XFPB last too long. Basically my XFPB isn't moving enough to give enough tolerance and then eventually it gets worn.

 

How do I adjust my BOLO to allow more XFPB / sear movement?

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5 hours ago, hav3n said:

How do I adjust my BOLO to allow more XFPB / sear movement?

 

You don't. You can't.

 

If fitting is needed, it'll take place at the firing pin block. It'll be obvious if you show us the places where the block and the firing pin make contact, as johnbu and socal said.

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