assembly:

See video !!

Glue: Ordinary superglue

barrel: PVC round 32 mm - 220 mm L

bolts: M5 30
nuts: M5
screws: parker 3.5 W 12 L

Reinforcement plate (not in video): heat the plate until it becomes flexible. press it against the frame to copy the shape. (see picture). attach with superglue, only on one half of the frame. Now you can still take it apart.

layer height all prints: 0.3 mm

material: PLA

Barrel A + B
Wall 2.4
Top/bottom 1.2
Infill 20

Body rear A +B
Wall 1.2
Top/bottom 0.9
Infill 10

(higher top/bottom/infill = higher chance of warping. When you have a glass bed with good adhesion you can try
top/bottom 1.2
infill 20)

Front cover
Wall 2.4
Top/bottom 1.2
Infil 40

Front grip
Wall 1.2
Top/bottom 1.2
Infil 20

Hinge A +B
Wall 1.2
Top/bottom 1.2
Infil 30

Hook
Wall 1.2
Top/bottom 1.2
Infil 100

Protector
Wall 1.2
Top/bottom 1.2
Infil 100

Silencer A+B
Wall 1.2
Top/bottom 1.2
Infil 30

Piston
Wall 1.2
Top/bottom 1.2
Infil 100

Trigger cover
Wall 1.2
Top/bottom 1.2
Infil 20

Spacer
Wall 1.2
Top/bottom 1.2
Infil 20

Magnet Cover
Wall 1.2
Top/bottom 1.5
Infil 100

knop
Wall 1.2
Top/bottom 1.2
Infil 100

Side Plate
Wall 2.4
Top/bottom 2.4
Infil 100

Stock
Wall 1.2
Top/bottom 0.9
Infil 10

(higher top/bottom/infill = higher chance of warping. When you have a glass bed with good adhesion you can try
top/bottom 1.2
infill 20)

Trigger pin
Wall 2.4
Top/bottom 1.2
Infil 100

trigger
Wall 1.2
Top/bottom 1.2
Infil 20

Reinforcement plate
Wall 1.2
Top/bottom 2.4
Infil 100