The BOSS 5.56mm Vented End Cap for 1.5-inch housings in black (brand part no. EC-150-556-SS-VE-BLK) is a replacement or upgrade end cap sized specifically for BOSS’s 1.5-inch modular suppressor housing in 5.56mm caliber, built with a vented configuration rather than a solid standard cap. It is not a suppressor on its own; it is the end cap component that caps off the housing, with the vented design giving additional gas relief compared to the standard cap. Machined from stainless steel, it gives BOSS suppressor owners a direct-fit option when they want the vented cap’s performance characteristics over the standard configuration. This end cap is matched precisely to the 1.5-inch housing diameter.

Key Specifications

• Sized for 5.56mm caliber BOSS suppressor housings.
• Fits the 1.5-inch housing diameter specifically.
• Uses a vented end cap configuration for added gas relief.
• Machined from stainless steel and finished in black.

Frequently Asked Questions

Is this a complete suppressor? No, it is an end cap component for BOSS’s 1.5-inch modular suppressor housing, sold separately from the housing itself.

How is the vented cap different from the standard cap? The vented configuration adds gas relief compared to the solid standard end cap.

Buy the BOSS 5.56mm Vented End Cap

Configure your BOSS 1.5-inch housing with this 5.56mm vented end cap. Shop more from B O S S Suppressors in our suppressor accessories category, shipped fast from our Lubbock, Texas shop.