airsoft model scope OKP7

this scope is facsimile from russian okp7,since I dont have one ,the size of this scope is basicly copied from pictures and it might not be accurate


things follow are required
m4*30screw* 1
m4nut*1
m3*5*11
m3*6*3
m8*8/m8*10 set screw*2
0.7*7*10 spring*2
36mm*3 round acrylic sheet