Traders do not just sell gear, they take the piece you own and hand back the next one up. Those trades chain, and the chains are the progression the game shows in a gear tooltip. Every step below is one of them, read straight out of EXBO's own barter data.

• weapon

  139 items · 135 upgrades · 12 branches · 7 tiers deep

  1. BM-16 Sawed-Off
  2. TOZ-34 Sawed-Off
  3. BM-16
  4. IZh-81
  5. MP-133
  6. Saiga-12K
  7. Saiga-12

• attachment

  98 items · 84 upgrades · 16 branches · 5 tiers deep

  1. 5.45 PMAG Magazine, Black
  2. 7.62 Bakelite Magazine
  3. 7.62 Plastic Magazine
  4. OTs-14 Extended Magazine
  5. ASh-12 Extended Magazine

• armor

  52 items · 64 upgrades · 5 branches · 8 tiers deep

  1. Old Hazmat Suit
  2. IP-4M
  3. Aurora-B Jumpsuit
  4. Bandit Suit with Gas Tanks
  5. MIS-99 Amber
  6. MIS-99M Malachite
  7. Uranus Jumpsuit
  8. Saturn Jumpsuit

• containers

  22 items · 19 upgrades · 3 branches · 6 tiers deep

  1. KZS-1U Container
  2. KZS-2 Container
  3. KZS-2U Container
  4. KZS-M Container
  5. KZS-MU Container
  6. SMC Container

• backpacks

  17 items · 14 upgrades · 3 branches · 6 tiers deep

  1. Transformer Bag
  2. Sports Bag
  3. PROTECT 3B Waist Bag
  4. Pouch Black Eagle B-33
  5. Utility Vest Black Eagle Y-73
  6. Utility Vest ADR-WRBT