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Showing results for tags 'Breacher'.
From the album: BST WorksThis is our BST valve-nest for Tokyo Marui M870. The stock valve-nest isn't seal properly so we redesigned it with a lot nice and nice function. - New sealing design. The valve-nest has much better and bigger contact are which cause better sealing even with HPA. - It has a spring guide for the hammer spring. - Made from copper by hand-working. The size is perfect, we spent a lot energy to reach the best design - this is the third version. The third version tested with HPA, it is run 7 month without any leaking in TM Breacher.
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