Thumb latch question

[Itsjohncena6969]

Originally Posted by Eugen

Op, is your Luger numbers matching? The reason I ask is that a non numbers matching firearm may have fitment issues that may effect normal operations. Further, varying degrees of cleanliness, dryness and variations of degree and type of lubrication can change the "feel" of part operations.

Except for the side plate everything else appears to match on it