Andy Barrels tactical likely can machine to your

likely can machine to your needs

and created in the BCFF Ecosystem - an upgraded plunger for the Zius BK1S and BK2S

and then the knuckle duster lever is right there too)

STLs Can be found Here

Bearings can't hurt right

Andy Barrels tactical likely can machine to yourCustom made to order Andy Barrels with chamfered ends and chambering options. If you need a "non stock" dimension send an email; likely can machine to your needs. Expertly crafted in house with 16mm outer diameter and 13mm inner diameter for superior performance. Enhance your shooting experience with precision and quality. Barrels do ship "polished" which really is just removing oxidization, but shipping and manufacturing will create some blemishes