On a less firer note:
Surefire handguard, as we already know, is a drop fit, with some patience I was able to fit a 7.4v 1400mah nunchuck, I also had a shorter 7.4v 1300mah nunchuck which was even easier to fit into this handguard. Eotech 551 on a VFC generic low profile claw mount, and as I have a game soon before I could get hold of a Gemtech I came up with a little MP5 specific housing for the Acetech S unit's internal.