Spare Control Knobs (only) for Riflespeed Gas Controls. These install in place of the current Control Knob on your Gas Control Assembly. These are the same Control Knobs that are included with each Gas Control assembly.
The models RS7519 and RS6219 use the 0.750 inch Control Knob #00101
The models RS7533 and RS6233 use the 2.160 inch Control Knob #00102
The models RS7543 and RS6243 use the 3.160 inch Control Knob #00103
The models RS7558 and RS6258 use the 4.660 inch Control Knob #00104
Again note; these are apare Control Knobs only, not the entire assembly. These are replacement or repair parts. Made in the USA.