Mossberg 500A front bead thread size

[soutex50]

Anyone know the thread size for the front size bead on a Mossy 500. I was thinking of installing a night sight bead from Meprolight. Only 25 bucks from CheaperThanDirt.

 

[Zero_DgZ]

I think it's 4-48. I have my original at home someplace; Remind me and I'll try to find it and check.

 

[Zero_DgZ]

Close but no garbonzo. It's a 5-40.

 

[soutex50]

Thanks a million, appreciate you taking the time. Ralph