1 x Silicone Rubber Standard-Hop Nub Damper

Compatible with QD HPA connectors

They conform to the EU EN13432 standard of degradability and the ISO standard 3290-2001 G3 which is the highest industry standard for precision rolling bearings

2 Gear Box of M4/M16 series Airsoft AEG Rifles

Madbull Whisper Airsoft Glock 1 x Silicone Rubber Standard-HopThe Whisper from MadBull Airsoft is made specifically for pistols, but will fit on any airsoft gun with a 14mm counter clockwise thread. Each barrel extension is constructed from high tensile strength aluminum and laser etched with trademarks. This barrel extension is an excellent choice to disguise an extended inner barrel while keeping the weight on the front end down. SPECS