Great for mag fed players, it can fit T15 , M17 , DAM , TGR , RAP4 Mags.

Plenty of room on the front to molle on more mag pouches as well.
Specifications:

Padded Shoulder Straps
Six built-in M4 mag pouch
Two internal mesh pockets
Heavyweight webbing for modular attachments
Adjustable/Removable chest platform
Built-in hydration carrier
Adjustable waist


Size :

Large – XXX-Large adjustable sizing