ISMI Glock Guide Rods

ISMI rods are machined from stainless steel and utilize a
button head screw to retain the spring when the assembly
is out of the pistol. This allows the shooter to dis-assemble
the guide rod for spring replacement or maintenance.
Fits Gen 1-3 

Part # GLGR-17
For use in Model 17, 22 etc size pistols

Part # GLGR-19
For use in Model 19, 23 etc size pistols

Part # GLGR-21
For use in Model 20 & 21 pistols