Here is the full list of all 30 Gunsmith Simulator achievements.
Complete total of 50 contracts
Customise an owned gun with at least 4 attachments
Score at least 60 points in One Mag Challenge using Colt Peacemaker
Score 10 points using a Colt M1911 in 300 meters
Paint total of 15 weapons
Change gun configuration 20 times
Own 10 different guns.
Remove rust from total of 60 weapon parts
Complete a contract for every type of weapon
Add sticker to your gun
Earned $10.000
Clean total of 100 weapon parts
Learn every gunsmith skill from Grandpa Larry
Use a CNC machine for 10 parts that can be modified in the game
Have at least 35 weapon parts in your inventory in the same time
Have 4 contracts at the same time
Finish CQB without any mistakes
Buy a gun in very bad condition, fix it and then sell
Destroy 10 watermelons
Win your first auction
Finished first contract
Fully disassemble 10 different weapons
Find and rescue Uncle Dave
Spend total of 2000$ for rent
Create total of 40 wooden parts
Complete One Mag Challenges using every weapon
Spend 1000$ more than you should spent on weapon parts at once
Change your own, single gun configuration 3 times
Don’t pay your debt until problems arrive
Complete disassembly challenge for 10 different weapons