75 tons of devastating firepower. Nothing can stand in a BattleMech's way, except another 'Mech! This book compiles for the first time the BattleTech statistics for the variant Inner Sphere & Clan 'Mech designs. Some are rare, others unique, and each could be that extra surprise you need for victory.
BattleTech Record Sheets Volume 3: Heavy 'Mechs contains heavy 'Mech variants from the 2750, 3025, and 3050 eras of BattleMechs. Included are record sheets for over 45 'Mechs, each with full technical statistics.

The third in the initial series, Record Sheets Volume Three: Heavy 'Mechs provides filled-out sheets of sourcebook BattleMechs and OmniMechs and TRO variants from the 2750, 3025, and 3050 eras, along with a table listing the Combat Value for all officially released heavy 'Mechs up to that point.

Like with all books from the series, the title is arbitrary and spelled differently throughout the book itself. "'Mechs" is sometimes written with an apostrophe, sometimes without and "Volume Three" is written as both "Volume 3" and "Vol.3" on the book's back cover, and omitted entirely on the inside. Similarly, the copyright is variably given as 1990 or 1991.