First Factory Battery Block for SIG SAUER MPX Airsoft AEG Rifle

First Factory Battery Block for SIG SAUER MPX Airsoft AEG Rifle Metal Construction Also serve as a Mock Gas Block, Allowing you to Retain the nice looks of the MPX without worrying about the battery wobbling or popping out of the gun Suitable For SIG SAUER MPX Electric AEG Rifle Airsoft Guns