Metal HopUp chamber for M4/M16
A high precision replacement hop-up unit. Made of metal alloy for better durability. Doesn`t include HopUp rubber.
is a world-famous brand of the Taiwanese Intruder Shop, which was introduced in 1997. The Intruder Shop itself was founded even earlier, in 1994 as a provider of police equipment to the local market. However at the turn of the millennium, it focuses mainly on airsoft and becomes one of the most famous brands in airsoft. Guarder offers a wide range of parts and accessories for airsoft weapons - from springs, cylinders, pistons, through mounts and gun accessories, to BBs. Guarder is also known for its quality upgrade parts for airsoft replicas.
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