Benelli M4…gotta say I've had the collapsible stock but I like the field stock more : r/Benelli_M4
Benelli LE M4 3 Position Telescoping Stock Assembly: MGW
PANZER M4 / Benelli M4 Shotgun and Clones 3 Position Telescopic Stock with Pistol Grip, Adjustable Cheek Riser, Missing Push Button, Black *NEW / As-Is*
M4 Tactical Adjustable Telescopic Stock, For Benelli M4 Shotguns Clones, i.e. Panzer M4, Etc. Aftermarket, Made In Turkey
Benelli M4 Collapsible Stock Installed on a Benelli M3? - Page 1 - AR15.COM