The PDI Precision Cylinder Head Set is specifically designed for the Tokyo Marui VSR-10 and is engineered for enhanced performance. The main cylinder head component is crafted from SUS304 stainless steel and maintains an internal diameter of 22mm, matching the original part. Crucially, it features a tight inner diameter tolerance of ±1/100mm for optimal air seal and consistency. The construction utilizes laser welding and is secured by a parallel pin for superior durability and alignment. Please note that PDI recommends using JP standard CAPBOLTs (M4 x 12mm - S3) for installation, which are sold separately. The original Tokyo Marui screws may be slightly undersized and could become unusable if roughly handled during disassembly, so users should proceed with care if attempting to reuse them with the PDI cylinder.

This set also includes a Taper Cylinder head made from SUS303 stainless steel, which is designed to improve air flow and overall efficiency. It is important to know that this cylinder head is not compatible with the original Tokyo Marui VSR-10 cylinder and will not fit with the PDI HOP UP CHAMBER Ver.1. Therefore, this precision set is intended for users performing a full cylinder and component upgrade on their Tokyo Marui VSR-10 to maximize its performance potential.