kirk123

引用:

原帖由 CPK 於 18-1-2011 14:22 發表
請問有無大佬用過，裝於PTW筒內?

謝。

yes! it fits in ptw cylinder cavity at upper receiver but needs a little modifications.

kirk123

引用:

原帖由 CPK 於 19-1-2011 17:01 發表


你知道啤鈴彈弓頂的用途嗎?

i think the spring will not distort easily.
so spring guard w/ bearing is much better.: