[jamface54]

Will this spring fit my brothers MB-01 rifle. ??? He wants to upgrade.
http://www.airsoftatlanta.com/PDI_130_L96_AWS_Spring_p/65614.htm

If it doesn't, will any of these. I know nothing about the MB-01. I read it takes Tokyo maraui l96 parts.
http://www.x-fire.org/etop/bolt_sp_thicker.html

 

[inthetallgrass]

The Mb 01 takes maruzen parts not tm. So no those will not fit. And I do not advise putting a much stronger spring in the gun unless you have a strong triggerbox.

 

[jamface54]

My bro also complanes it fires at random places on the target.

 

[inthetallgrass]

My bro also complanes it fires at random places on the target.

You can only get so accurate with a smooth bore barrel and round projectile. The main thing s for accuracy and range is the barrel and the bucking. Upgrade the hop up chamber then the barrel for an improvment. Also the internals.