Anyone know who might have done this conversion?

[Miacovet]

So I just got a sp89/mp5k conversion today from and FFL. The guy said it was either married to a flaming or S&H sear.
I don't see any marking on the gun to verify who did this conversion. If anyone has any info please let me know. Here are some pictures.

here is a photo of the remark.



here is a photo of a three lug installed.

 

[AGG]

Have a SN--- I have registered receivers chronicled.

Tony

 

[Miacovet]

Have a SN--- I have registered receivers chronicled.

Tony

It's a title one gun. The guy said it was on a flemming sear.

 

[AGG]

It's a title one gun. The guy said it was on a flemming sear.

Are there any SBR markings?

Tony

 

[Miacovet]

Are there any SBR markings?

Tony

Nope, none that I can find at least.