This magazine extension kit by BBT is designed for the VFC / Parabellum SIG P320 / M17 / M18 GBB Airsoft pistol series. The extension kit is CNC-machined using high-quality aluminum for the core and is outfitted with a 3D-printed magazine follower and baseplate cover. The magazine extension actually adds to the maximum capacity, giving the user more BBs before needing to reload. It is a simple drop-in installation, but will require DIY technical knowledge to ensure proper fitment and function.
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