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M4-KIT-04 GHK AR New Simple Quick Adjust HOP Upgrade Kit
$40.00
GHK AR New Simple Quick Adjust HOP Upgrade Kit ● Includes HOP-UP seat, patented adjustment tool, HOP-UP rubber) ● Material : Nylon ● Easy and quick tuning ● No dismantling handguard ● Generally available on the market GBB inner barrel ● Reliably fix..