Stock Marui VSR lever is made of plastic.  It may break and does not have enough HopUp pressure on heavy BBS.

Here is our durable metal lever, which finally solves this problem. Offer good durability and modified snob can rotate heavier BBs. Made of aluminum alloy with anodized.

NOTE: Applicable only for Marui VSR series. If you wish to use it for Well copies, it is necessary to narrow the width of 0.6 mm.