Reddit mentions of Wheeler Engineering 89-Piece Deluxe Gunsmithing Screwdriver Set with Durable Construction and Storage Case for Gunsmithing and Maintenance

http://www.amazon.com/Wheeler-89-Piece-Deluxe-Gunsmithing-Screwdriver/dp/B001C63M7O

You want drivers that fit the screw. Improper fit will mess up the screw slot or lead to slippage. Hollow Ground is usually best or a Parallel grind, not a chisel point.

These Wheeler Kits are generally pretty good for what they are.

If you hate money you can look at Starrett, Wera, Wiha, PB Swiss..

Wheeler Engineering 89-Piece Deluxe Gunsmithing Screwdriver Set with Durable Construction and Storage Case for Gunsmithing and Maintenance https://www.amazon.com/dp/B001C63M7O/ref=cm_sw_r_cp_api_i_0pOVCbPFA4BTT

I have these:

https://www.amazon.com/Wheeler-89-Piece-Deluxe-Gunsmithing-Screwdriver/dp/B001C63M7O/ref=sr_1_4?ie=UTF8&qid=1525651391&sr=8-4&keywords=wheeler+gunsmith+tools

and

https://www.amazon.com/Wheeler-Hammer-Punch-Plastic-Case/dp/B004SY07HU/ref=sr_1_5?ie=UTF8&qid=1525651391&sr=8-5&keywords=wheeler+gunsmith+tools

When it comes to getting screw bits (if you're piecing together a set) it's important to make sure you get hollow grind bits as not to damage the screw heads.

If you don't have a set of good screw drivers grab this set here: http://www.amazon.com/Wheeler-89-Piece-Deluxe-Gunsmithing-Screwdriver/dp/B001C63M7O

a good screwdriver set intended to fit firearms fasteners saves loads of damage to fasteners
https://www.amazon.com/Wheeler-89-Piece-Deluxe-Gunsmithing-Screwdriver/dp/B001C63M7O/ref=sr_1_5?ie=UTF8&qid=1527255716&sr=8-5&keywords=gunsmithing+tools

Regular bits are angled. Gunsmithing bits are square. If you use regular bits your screw heads will certainly show damage. You most certainly need proper fitting hollow ground bits to do the job right.

Field stripping an M1 Garand does not require any tools. But what you're attempting to do does.

My buddy asked me for my recommendation last year and I told him this: it's more important you have the correct sized bits vs high quality bits. If you can afford both, great! But most of us have a budget so go with a set with a large variety of sizes. Remember, both the width and depth are equally important. A bit that is too wide will open the ends of a head like an opposing set of parentheses. A bit that is too narrow round out the top like opposing lower-case r's.

He ended up buying:
Wheeler 89-Piece Deluxe Gunsmithing Screwdriver Set, Black/Yellow https://www.amazon.com/dp/B001C63M7O/ref=cm_sw_r_cp_apa_i_uwzdBbY5REFM0

And of course, you need to steady the rifle so be sure to have a cleaning rest. Mine is cheap but it works great:
Tipton Gun Butler https://www.amazon.com/dp/B0036FFQAU/ref=cm_sw_r_cp_apa_i_NyzdBbR86YV6Z

My buddy has this set its kinda pricy but its worth it, i use his all the time to work on my 500

I don't have a specific set to recommend, but one thing to keep in mind is 90+% of gun screws are flatheads, and that can be an under represented form in generic screwdriver kits.

Like I said before, it's very important that the blade fit tightly in the screw.

Take a look at THIS set (zoom in on the picture). It is an expensive set, but notice that it has a LOT of flatheads and almost no hex or phillips bits...that's the main difference in a "gunsmith" set and a generic screwdriver set.

Have one of those sets in our shop.

We also have 2 of these sets linked below as well. I have been very pleased with them. If you ever need more in the future, which you will.

Wheeler 89-Piece Deluxe Gunsmithing Screwdriver Set, Black/Yellow https://www.amazon.com/dp/B001C63M7O/ref=cm_sw_r_cp_apa_CgGXBbQQ0FYA4