The cleaning link is an essential tool for maintaining your 308 AR. It effectively separates the upper and lower assemblies while securely holding them in place, facilitating easy access to the breech for bore cleaning with a Sinclair rod guide. Constructed from Delrin and stainless steel, it is highly resistant to solvents. The cleaning link utilizes the rear locking pin and rear locking pin hole, allowing for installation in seconds. Requires custom fitting for takedown pins, except for those compatible with the Armalite AR-10 model