B00PGCHOU6 Elite Force 2262044 HK UMP GBB – Black 6 mm BB, One Size

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Fully licensed by Heckler & Koch; Compact design and realistic hard-kick blowback
Extremely high quality build and detailed finish; Powered by efficient airsoft green gas (green gas NOT included)
Semi-auto, full-auto, and 2-shot burst shooting; Adjustable hop-up for optimized range
Shoots 6mm plastic airsoft BBs at up to 360 fps
Integrated front and adjustable rear iron sights
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