Magazine Gas Route Seal Aero Packing (2 PCS) For HK45/M&P9/XDM-40/PX4/1911/MEU /USP/Det.45/MP7A1 GBB Series

Reduce gas passage resistance with the aero shape inside.
Made from cold-resistant material to reduce gas leakage.
Special surface treatment and material with smooth surface.

Will fit - WIDE USEAGE

Tokyo Marui - HK45 GBB Series

Tokyo Marui - USP Compact GBB Series

Tokyo Marui - M&P9 GBB Series

Tokyo Marui - XDM-40 GBB Series

Tokyo Marui - PX-4 GBB Series

Tokyo Marui - M1911A1 GBB Series

Tokyo Marui - MEU GBB Series

Tokyo Marui - WARRIOR GBB Series

Tokyo Marui - Detonics .45 GBB Series

Tokyo Marui - MP7A1 GBB Series