I am using Aluminium CNC for other not TM P226.
The CNC is normally a higher quality material and the shaping is sharper than the Aluminium Die-Cast. You may need to file slide, frame or some components here and there to fit the CNC set in. The Die-Cast is easier to install less filing. However, the Die-Cast normally is a bit lossing in term of fitness.
1. a new recoil spring (150%) for the new slide weight: You need this with Green or Top gas to absorb the Blowback force. I have used CNC with standard spring on standard gas. It works fine since my Aluminnium CNC is not too heavy.
2. a Nine Ball high flow valve with those litle bearings. This give you more gas flow (FPS) but consume more gas.
3. a hammer spring (130%), is this item really needed? You may need this if the standard hammer spring is not strong enough to press the magazine valve when you are using Green or Top gas. But it also give you more wear and tear.
4. Guader enhanced loading nozzle. I have not tried this.
5. Nine Ball tight bore barrel (Tanio Koba makes a rifled one, does anyone has one of these or know if it makes any difference?) I have not tried this but from web information, it give a better performance when using in the range of 3xx fps.
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