Standards common to M45 series and HELLCAT series magazines
A rubber part that acts as a passageway for sending gas from the magazine into the main slide.
It rubs against the cylinder, a mechanical part that maintains an airtight seal, with each operation, and the contact surface gradually thins (wears), creating a gap between it and the cylinder and reducing the airtightness. If you notice that the blowback has become weaker, this part may be worn out.
(Note) The "gas leak" condition in which gas is forcefully emitted from this part is not caused by this part itself, so applying silicone oil to this part or replacing it will not fix the problem.
![[Carbon8] M45 & HC4.3 Series Common Gas Route Packing / 2-piece set (Releases Mid-April 2026)](http://rock-et.jp/cdn/shop/files/Z-M45_078_001cfd94-cb9b-42e9-8671-6d6ddfd5a5e0_1024x1024.png?v=1755065598)
