Non blow back (CO2)

5 22

4.6 23

4.85 12

4.7 30

4.7 12

5 2

4.35 13

5 1

4.7 12

5 1

4.5 2

4.5 31

4.7 3

5 4

3 1

4.85 31

4.75 4

4.6 9

5 1