[Red Serpent]

I bought myself a 'CA M15 Tactical Carbine (proline)' from a friend who had an accident at work and is no longer able to airsoft. I payed 125 euros (167 CAD) for the weapon and some accessories. It included a set of 8.4v 3300 mAh batteries. The gun was used infrequently and is about 4 years old.

Now, I would like to upgrade it so it performs to the best of its ability. Groups in my area have a 350FPS limit on FullAuto replicas. From my understanding it should shoot around 310-315 stock. So that limits the upgrades I can carry out.

I need some assistance in making sure that I upgrade the right parts and don't end up upgrading it beyond the limit (350fps) or upgrade parts that don't really need upgrading.

I figure adding the following
-Prometheus Inner barrel 6.03mm (363mm)
-Prometheus Soft hopup packing

Any suggestions are much appreciated!