[CZ Open Build Theory]

recoil looks nice, wonder how much difference there is shooting with comp or without with the minor load.

[CZ Open Build Theory]

I currently have a hard time to get the holes for my optic mount drilled into the SP01 frame.

I changed to Carbide drills which works, no I have the problem to get a tap to cut the thread.

Anybody has a source where I can acquire a tap which will work in the obviously heat treated frame material.

[CZ Open Build Theory]

Well from what i gathered on information is that you need a lot of gas in order to have a comp working in general.

Kneelingatlas mentioned that a 5 port comp will not be efficient, especially with minor loads which seems not to generate enough gas to operate the comp.

Therefore I was considering to load major if with a 90 gr or 115 or 124gr bullet that I will see.

The industry advertise this small 2 -5 port comps, but is it really enough to keep the muzzle from rising?

[CZ Open Build Theory]

I don`t need to shoot major power, i just like the idea to have a flat shooter.

Like shooting a 22 in 9mm, for me the muzzle rise is what i like to reduce as much as possible.

[CZ Open Build Theory]

we just do steel shooting in our club, so far I`m not thinking about competing, my main interest is in the flat shooting 

[CZ Open Build Theory]

I got what you are saying with the additional gas I have to provide in order to have a functioning comp and get a flat shooting gun.

I will try a 90gr bullet with a slow burning powder to reach the 170pf, what would be a good comp I could use on the threaded CZ 75 barrel.

[CZ Open Build Theory]

Do you think a SJC 5 port comp on the standard CZ 75 SP01 threaded barrel will provide a flat shooting with standard 115gr load in the 140pf range?

[CZ Open Build Theory]

On 8/22/2018 at 1:43 AM, kneelingatlas said:

It seems the first pistol a Shadow has the comp mounted and the slide and frame looks still unmodified. How can I do that and where can I get this red dot mount.