Tiny screw size

[annamariaslim]

Wondering what size Allen screws are used to hold the side plates are on a 1377 current model I just bought? Metric, standard?

[BillK]

https://www.crosman-air-pistol-owners-forum.com/board/index.php/topic,929.0.html

4-40 x 3/8  per the chart.

[annamariaslim]

Thanks!