Gunsmithing McMillan A5 mods

[XLR308]

I am considering getting a base model A5 with a Rem700 SA inlet and making any modififications that may be needed for an Atlas action.
I'm pretty sure sight unseen that the portion for the ejection port will need some slight adjustments and possibly the area of the stock that the side bolt release is located and the recoil lug width.
My main concern and interest in asking would be whether or not I would need to recover these areas with a layer of marine tex or Devcon 10110 and then smooth and blend them back out.
I would be using Devcon for the bedding anyway.
Anyone that has made similar mods your input and experience would be appreciated.

 

[GreatGonzo]

I just converted a righty TF4A to left handed and did some repairs to some of the internals. It really isn't a big deal. The fiberglass will show a little where it is cut on end, but a little paint would take care of it. The main thing when cutting in the reliefs is to go very slow with a very sharp file and check it often.

 

[XLR308]

I just converted a righty TF4A to left handed and did some repairs to some of the internals. It really isn't a big deal. The fiberglass will show a little where it is cut on end, but a little paint would take care of it. The main thing when cutting in the reliefs is to go very slow with a very sharp file and check it often.

Thanks for the reply, I'm not concerned about the modification of cutting process but have been doing some more reading on the subject anyways.
After a bit more research I have more or less decided to use gelcoat to go back over the areas I may have to cut into the fiberglass shell.
The only concern I had was what the layers of fiber glass may do in the long term as in fraying or possible delamination from use or intrusion from oils or solvents.

 

[Jackalope]

I wouldn’t worry about it. The fiberglass shell won’t fray and the filler material sands smooth easily. Neither are effected by any solvents you’d want near your rifle. If anything, you may run into a small air bubble or imperfection. I’ve had good luck filling with a little glazing putty and sanding flush.