The Eberlestock G1 Little Brother is a handy pack that can be used as a stand-alone 3-day pack, and is also made to compliment the J51 Warhammer pack.
The Little Brother features an expansion sleeve that allows you to insert any of Eberlestock's side scabbards.
With the A4SS Tactical Weapon Carrier installed, the pack functions much like the G3M Phantom pack (NOTE: Scabbards and Hip Belts NOT INCLUDED)