Madbull Airsoft KAC licensed QDC-CQB Suppressor (Black) MP40 the only way out for

the only way out for the air is through the nozzle end

Echo-1 M4 Platinum Edition and Red Jacket buffer tubes

The barrel has threads for a silencer

ShellWarranty Length: 30 DaysInner Barrel length: 259mm

7inch Barrel length: 136mm/5

Madbull Airsoft KAC licensed QDC-CQB Suppressor (Black) MP40 the only way out forThe Knights Armament QDC Barrel Extension is the highest evolution of mock airsoft suppressors to date! An included 3 prong flash hider attaches to your choice of barrel (please specify 14mm+ or 14mm thread) Manufactured by Madbull to Knight's Armament Airsoft specification, exceptional quality can be ensured Precision machined out of steel alloy and aircraft grade aluminum Simply pull the innovative QD collar to install or remove the mock suppressor