Airsoft Canada - View Single Post - Q's on upgrading a CA M-16

mcguyver · February 10th, 2006, 00:54

If this CA is new, then it should have either 7mm bushings (metal) or bearings installed from factory. From what I hear, plastic spring guide though. In my opinion, I would try to limit yourself to around 400 fps if you want to get max life and usability out of your AEG. The real world difference in range between 400 and 450 fps is minimal (a few feet at best), but the differences in stress on your mechbox and internals is HUGE.

I've de-tuned some really hot guns from 475 fps to 390 fps and noticed little range difference but life expectancy will have gone up immensely.

Your idea of increased cylinder capacity in conjunction with a tightbore will give you better accuracy and should give you more consistant fps. Both of which are good things.

If your doing the work yourself and don't really know your way around a mechbox, remember that the quality of your parts is only 10% of the upgrade, with workmanship and attention to detail being 90%. Shimming and lubrication are THE most important aspects of mechbox assembly and higher fps guns need much more attention.

Good luck.

February 10th, 2006, 00:54	#8
mcguyver Trader rating Join Date: Aug 2005 Location: Northern Alberta	If this CA is new, then it should have either 7mm bushings (metal) or bearings installed from factory. From what I hear, plastic spring guide though. In my opinion, I would try to limit yourself to around 400 fps if you want to get max life and usability out of your AEG. The real world difference in range between 400 and 450 fps is minimal (a few feet at best), but the differences in stress on your mechbox and internals is HUGE. I've de-tuned some really hot guns from 475 fps to 390 fps and noticed little range difference but life expectancy will have gone up immensely. Your idea of increased cylinder capacity in conjunction with a tightbore will give you better accuracy and should give you more consistant fps. Both of which are good things. If your doing the work yourself and don't really know your way around a mechbox, remember that the quality of your parts is only 10% of the upgrade, with workmanship and attention to detail being 90%. Shimming and lubrication are THE most important aspects of mechbox assembly and higher fps guns need much more attention. Good luck.