BudsGunShop.com - 100 rd Drum capacity?

50.

Hi Brian and welcome. This case is 33" x 6" x 10" in diameter. Custom tailored compartments will accommodate the Thompson long guns (with detached buttstock) *10 Rd. or 50 Rd. drum and extra magazines - This guide will help with correct case selection : -- youtube.com/watch?v=FuLkXQbI95k

Hi Brian, no sir, this holds (2) 50 rd drums, and (4) 20 rd stick mags, or (1) 20 rd and (3) 30 round stick, there's no storage for a 100 rd drum.
Stay safe & have a great day!