Remove all stock screws and pull stock apart
Fill with foam to reduce sound and make feel less cheap.
(I used Calmflex F2 and various scrubber pads)
Put back together without losing a screw like I did
Fill with more foam
Remove trigger and barrel/hop chamber
Disassemble trigger
There's a hidden screw behind the safety, so pull the safety back
Polish here and here on the trigger and main sear.
This will reduce trigger pull weight and improve longevity
Polish on the front and back of the piston sear too.
This also helps with trigger pull weight and longevity.
Add better grease and re assemble.
Grease reduces friction, improving trigger pull, bolt pull, and longevity.
Wrap a layer of Scotch tape and a layer of aluminum tape on this part of your barrel.
This will center it in your receiver better.
You also need to poke out that hole.
This improves accuracy/range, sound, and stability
Cut a piece of aluminum can and put it in the receiver to make an ejection port cover like so.
This improves sound and keeps out sand, dust, dirt, and everything bad
Make a cylinder guide sleeve like so.
You want it to be a sliding fit on your cylinder, and a tight fit in your outer barrel.
I used a notebook cover and some tape, but a soda bottle or Delrin tube would be ideal.
This improves bolt pull, sound, and longevity
Make a barrel spacer out of painters tape and install the hop chamber, barrel, and cylinder guide sleeve.
This improves sound, accuracy/effective range, and rigidity
Wrap electrical tape on both ends of your spring.
This improves sound
Fill with foam to reduce sound and make feel less cheap.
(I used Calmflex F2 and various scrubber pads)
Put back together without losing a screw like I did
Fill with more foam
Remove trigger and barrel/hop chamber
Disassemble trigger
There's a hidden screw behind the safety, so pull the safety back
Polish here and here on the trigger and main sear.
This will reduce trigger pull weight and improve longevity
Polish on the front and back of the piston sear too.
This also helps with trigger pull weight and longevity.
Add better grease and re assemble.
Grease reduces friction, improving trigger pull, bolt pull, and longevity.
Wrap a layer of Scotch tape and a layer of aluminum tape on this part of your barrel.
This will center it in your receiver better.
You also need to poke out that hole.
This improves accuracy/range, sound, and stability
Cut a piece of aluminum can and put it in the receiver to make an ejection port cover like so.
This improves sound and keeps out sand, dust, dirt, and everything bad
Make a cylinder guide sleeve like so.
You want it to be a sliding fit on your cylinder, and a tight fit in your outer barrel.
I used a notebook cover and some tape, but a soda bottle or Delrin tube would be ideal.
This improves bolt pull, sound, and longevity
Make a barrel spacer out of painters tape and install the hop chamber, barrel, and cylinder guide sleeve.
This improves sound, accuracy/effective range, and rigidity
Wrap electrical tape on both ends of your spring.
This improves sound