These are 30% thicker on the body but maintaining the same head footprint.
The base is 35mm thick improving surface area of grip & increasing aesthetics of the drip.
The base diameter of the THICCC SVG’s are the same as the Tango Down Stubby Vertical Grip
No hardware needed for installation.
1913 version is a tight fit product to insure years of hard use without it being loose or wobbly on your rail.