diff --git a/Rifles/AR-15_Bumpfire_Stock_v2-Disruptive_Solutions/README.md b/Rifles/AR-15_Bumpfire_Stock_v2-Disruptive_Solutions/README.md
index 500df2b..e91a0dd 100644
--- a/Rifles/AR-15_Bumpfire_Stock_v2-Disruptive_Solutions/README.md
+++ b/Rifles/AR-15_Bumpfire_Stock_v2-Disruptive_Solutions/README.md
@@ -8,7 +8,7 @@ Looking through a thread about printing a bump fire stock I saw a lot of interes
 
 * Stock body 1.igs
 * Stock body 2.igs
-* Stock body 3.stl
+* Stock body 3.igs
 * Grip Plug.igs
 * Stock body 1.stl
 * Stock body 2.stl