Crosman 1322 1377 side Picatiny 22mm rail

Side rail for Crosman 1322 and 1377 

Roughly 35mm long (4 teeth) 

Can be assembled at left or right side. 

Does not block pumping 

Does not obscure sights

Designed for flashlight, but tight enough for laser sights

Requires two M3 studs 6mm long and two M3 nuts to tighten to barrel. 

Nuts are sitting tight, heat them up if stuck. 

Two possible ways to assembly: 

1. Remove front pin, remove front sights and slide it over the barrel.
2. Remove breech, slide over the barrel.

Personally I prefer first option.