I did reinforce it slightly with putty. And no, that range is with streamlines.
Ok, if I'm reading all this correctly, you've removed the AR's and added a spring addition in the stock, and you're hitting 55 feet consistently. I'm assuming that's with the same 3" single bb stefans, right? That's a beastly range for something with such a high ROF and ammo capacity. This might just be the Doomsayer of indoor/close-quarters combat. At 55 feet, it easily matches the range of anything else in my indoor arsenal. I might just have a new indoor primary in a few months...
Did you reinforce the cocking bar? I didn't see mention of whether you did or not, only that you might...
55 feet with streamlines?! That's fantastic! Well then, I am sold. I will be grabbing at least one of these just as soon as I'm able.
While I've got your attention, perhaps you could answer another question, if you are able. Do you think it would be possible (whether with little work or a lot of work, whether modding the mag or the blaster) to reverse the drum mag's loading direction? (i.e. so that the drum faces downward instead of upward?
I ask because I have tentative plans to get ahold of a pair of these drum mags and a pair of recons, then mod the whole mess into a functional and aesthetically pleasing replica of a Storm Bolter from Warhammer 40,000 - simply because it would look ridiculously awesome.
(it might also make a halfway decent indoor weapon, what with the dual-firing, 35 round clip and all)