Advise on actions that fit a KRG without modification/milling

[vno.helix]

For my next build I am considering one of the following actions. Chassis will be a KRG W3 (Gen 6):

Lone Peak Fuzion
Impact 737
Zermatt TL3
Terminus Zeus
GAP Tempest

If any of these actions require me to make modifications to the KRG backbone for either the trigger hanger or anything else, then I will remove it from the list. If you have experience with either of these, please let me know. I already have a W3/CDG combo that required a good bit of milling. I dont want to modify another backbone as I feel it hurts the resale value. If you know of any other actions that are 100% "drop in" without the need for milling or modifying in any way, feel free to mention them as well.

I appreciate your help,

 

[kindabitey]

Any receiver that uses a trigger hanger will require some work. Those without should be fine.

 

[wpeach1912]

The lone peak is. My Gen 6 I needed to dremel the grips to get my bolt to close all the way for a TL3. The 737 has a trigger hanger

 

[vno.helix]

I suppose that brings to light that I don't know exactly which action has a trigger hanger and which ones dont. Having said that, I know the Tempest has a trigger hanger but I spoke to someone a long time ago who assured me that no dremeling was required to fit his Tempest in a Bravo which has the same backbone as a W3. So that would be one action with trigger hanger that does not require mods, assuming the information I was given is correct. Hence my confusion.

If the Lone Peak is a 100% drop in and only requires some dremeling to the grips, thats not a big deal. They are cheap to replace.

 

[wpeach1912]

I suppose that brings to light that I don't know exactly which action has a trigger hanger and which ones dont. Having said that, I know the Tempest has a trigger hanger but I spoke to someone a long time ago who assured me that no dremeling was required to fit his Tempest in a Bravo which has the same backbone as a W3. So that would be one action with trigger hanger that does not require mods, assuming the information I was given is correct. Hence my confusion.

If the Lone Peak is a 100% drop in and only requires some dremeling to the grips, thats not a big deal. They are cheap to replace.

I realized I forgot to include that I needed to dremel for my TL3. The lone peak wouldn’t have needed it