I'll be eagerly awaiting your progress.
Just sighted in my new CA M15A4 CQB and its been a dream to handle and shoot.
IF I ever get another AEG, I have my eye on the CA SLR-105, same CA quality, being able to use m16 mags ect....and modifying it as a high powered sniping tool.
How have you found the build quiality of the SLR-105. Was it made before or after the CQB?
this sight looks like a good compliment to such a gun.
http://www.airsoftcanada.com/showthread.php?t=32066