Colt Small Frame Lightning question

[Injun Ryder, SASS #36201L]

I recently obtained one of these and noticed the following on the receiver. It looks too large to be a crack but there could have been some corrosion. But, I also don't see why there would be a gap. 

 

Gap or Crack?

 

Repair or leave as is? (The gun functions properly.)

 

 

[Cowtown Scout, SASS #53540 L]

I’m not seeing in the photos what are trying to describe.

 

OK I see what you are talking about now.

[H. K. Uriah, SASS #74619]

Well, mine does not have that gap, so I'd say it's a crack.   On the one hand, if it ain't broke, don't fix it.   On the other hand, that doesn't look right, and it might lead to problems later if left alone.   I assume this is a .22 Long, and will only get CB ammo, but I'd still be concerned about the opening.

If it were mine, I'd have it fixed.  I'd go to Lassiter, myself.

[KingSnake]

It ‘looks’ like corrosion created the gap. But as thin as it appears to have been originally, it couldn’t have provided much strength.