The piston portion (102) further includes a substantially annular insert chamber (126) formed in the mating face (105) and adapted for receiving a portion of a substantially annular insert (120).

该活塞部分（102）还包括形成于该配合面（105）中且适 于接纳基本上环形的嵌件（120）的一部分的基本上环形的嵌件腔室 （126）。

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Now you see the piston, and the metal ring; this parts will insert into the back end of the barrel. the end cap you are seeing the from T1 test shot, not good yet.

看到活塞了吧，还有金属环(会塞入笔馆尾端)，你看到的尾塞是第一次试模，还不漂亮。

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