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