The RYG multi weight guide rod allows you to have four different weights with one guide rod assembly. The included adapters lets you choose between 13, 16, 17 and 18lb weights for your gen 1-4 Glock pistol. Simply switch out each adapter to dial in your ideal spring weight.
-No adapter = 13lbs
-Green adapter only = 16lbs
-Red adapter only =17lbs
-Both red and green adapters = 18lbs
This worked great with my G17 pistol! Glad I didnt have to buy 4 diffrent guide rods.