The Rune Tactical Gen. 4/ Gen 5 G17/22/47 Stainless Steel Guide Rod is an Uncaptured spring, allowing your Newer generation Glocks to benefit from being able to run a larger diameter guide rod. We have Based the spring weights on the tried & true gen3 springs, only adjusting what was necessary to bring them into the Gen4 & Gen 5

Guide rod for Gen4 17, Gen4 22, Gen5 17, Gen5 22 Gen5 47, Gen4 17 mos, Gen5 17mos

No  adapter Needed for glock Gen 5 or Gen 4

FEATURES:

• REPLACES STANDARD Multi Spring system With 1 spring, IMPROVED PERFORMANCE
• COMPATIBLE MODELS: G17/22/47
• MATERIAL: STAINLESS STEEL

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.