引用:
原帖由 fwkwong 於 10-9-2010 01:01 發表
7.2 --> normal lenght like KAC RAS, need to install original front sight on the barrel
7.6 --> special designed for MP7 lenght of short barrel
I am confuse, I thought 版主 is talking about the outer barrel length or the rail length?
If he is refering to the length of outer barrel, how can a 7.2 outer barrel fit a FSP, unless the rail is 4".