Marks SC4 6 Pin Cylinder

The Marks 6-pin SC4 cylinder is a solid, standard pin tumbler platform based on the common Schlage SC4 keyway. Known for consistent machining and dependable tolerances, it’s a great option for everyday locksport practice and skill building.
With a traditional pin stack design, this cylinder provides clear feedback and is well-suited for single pin picking, raking, and basic pinning experiments.
 
Key Features:
Marks 6-pin cylinder (SC4 keyway)
Standard pin tumbler design
Compatible with Schlage SC4 keyway tools and keys
Clean, consistent feedback for practice
Ideal for beginner to intermediate locksport