First Factory Sig Sauer MPX Battery Stop Gas Block

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  • Regular price $39.99

The First Factory Battery Block is designed to prevent batteries from popping out of the SIG AIR MPX AEG. This piece is made of metal and is a drop-in fit, it can 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.

Made in Japan!