Trigger Sleeve (Part No.44) For KWA USP SERIES / HK45 GBB Manufacturer_ESS Integrated M1913 Picatinny interface provides

Integrated M1913 Picatinny interface provides industry-standard mounting options for a wide range of applications

For Umarex G19x- Stainless Steel material with CNC machined- 4 buffers for modification to shorten the cycling- Include Enhance Recoil Spring- Enhance the reaction force to speed up the blowback cycle- 3 Colors available: Silver

For GHK AR M4 Gas Magazine- Made by 3D Print

this Tokyo Marui M92F Gas Blow Back Airsoft Pistol is a good choice

you can find newly design grey dial for HOP UP adjustment without disassembling the gun

Trigger Sleeve (Part No.44) For KWA USP SERIES / HK45 GBB Manufacturer_ESS Integrated M1913 Picatinny interface provides