ENERGETIC ARMAMENT | EA33 End Cap | 5.56mm | Nitride

The Energetic Armament EA33 End Cap is an accessory end cap engineered to provide a tighter bore aperture for use with 5.56mm rounds. It is machined from American-made 17-4PH stainless steel and finished with a black nitride treatment for corrosion resistance and durability. The cap does not include provision for installing a wipe; wipes are generally not recommended for supersonic 5.56mm use. This component is intended for precision-oriented builds and gunsmithing applications where bore aperture control is required.

Product Specifications

• The manufacturer is ENERGETIC ARMAMENT.
• The model is listed as the EA33 End Cap.
• The part is intended for 5.56mm use.
• The component is machined from American-made 17-4PH stainless steel.
• The exterior receives a black nitride finish for corrosion resistance.
• The cap provides a tighter bore aperture compared with a standard end cap.
• This cap does not include provision for a wipe and is supplied without one.
• Wipes are generally not recommended for supersonic 5.56mm use with this cap.
• The UPC is 853406008336.
• The product category is Class 3 Parts & Accessories.

This EA33 End Cap suits builders and armorers seeking a simple, precision-machined option to alter bore aperture characteristics on 5.56mm systems. Its durable 17-4PH stainless construction and nitride finish make it appropriate for long-term service in match or precision shooting assemblies and for gunsmith tuning work where consistent bore geometry matters.