BOSS End Cap Features The Boss Suppressors End Cap is machined from stainless steel and sized specifically for 1.5 inch diameter Boss suppressor models chambered for 5.56mm. Because it is purpose built for this specific suppressor diameter it threads on as a precise replacement rather than a generic universal part. The standard black finish matches the factory appearance of compatible Boss suppressor models keeping a uniform look after replacement. This fitment specificity means owners should confirm their suppressor model before ordering to ensure proper compatibility. Stainless steel construction gives this end cap the corrosion resistance and heat tolerance needed to withstand repeated firing cycles at the muzzle end of a suppressor. Replacing a worn or damaged end cap can restore proper function and sealing to an existing Boss suppressor without needing to replace the entire unit. This part is intended strictly for 1.5 inch Boss silencer models so it is not interchangeable with other suppressor brands or diameters. Suppressor owners running a compatible Boss model will find this end cap a straightforward way to maintain their unit for sale at GrabAGun. BOSS End Cap Specifications Manufacturer: BOSS Type: Suppressor End Cap Material: Stainless Steel Color: Black Compatible Hosts: 1.5 Boss Suppressor Models 5.56mm Available At: GrabAGun