Product Overview
HPA 6.02mm High Performance Stainless Steel Inner Barrels. HPA's proprietary coating is applied in their U.S facility and designed to enhance the performance and accuracy of your AEG when using HPA Bio BB.
Learn moreHPA 6.02mm High Performance Stainless Steel Inner Barrels. HPA's proprietary coating is applied in their U.S facility and designed to enhance the performance and accuracy of your AEG when using HPA Bio BB.
Learn moreHPA 6.02mm High Performance Stainless Steel Inner Barrels. HPA's proprietary coating is applied in their U.S facility and designed to enhance the performance and accuracy of your AEG when using HPA Bio BB.
Learn more