Looking for advice on a service rifle build

Meese

Meese

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Hey folks, I've been thinking about putting together an upper for some service rifle style shooting. I've got a rough idea about what kind of parts I want to use, but I'd love to hear some advice from some of the more experienced people here. I'm expecting to put it together myself, but I'd be happy to pay someone like ATRS to do it if the price was right. Here's my rough parts list:

- 20" stainless barrel, 1:7 twist, 5.56 NATO chamber, rifle length gas tube
- Yankee Hill Machine customizable series forearm (YHM-9432A)

I'm not sure what I should be looking for in the upper receiver, bolt carrier group, and gas block. These are some of the things I've been wondering about:

- The forearm I've picked out is 12.5" inches in length. Does that mean I need a low profile gas block even with a rifle-length gas tube?
- Any brand recommendations for the flat top upper and bolt carrier group?
- Is the nitriding process worth the extra money?
- I have no idea what to do for a muzzle break. Do I even need/want one?
- Would you recommend a fluted rifle barrel to make those snaps a little easier?
- Any idea where I can get some of these parts? I haven't found any Canadian suppliers selling that YHM forearm, and I don't really know where to go for the barrel.

I already have a Dlask lower, and I'll probably get a Rock River Arms lower parts kit with a standard trigger to finish it off.

I really appreciate any advice you guys have, cheers!
 
I've been gathering parts for a SPR build as well. To me, the barrel and trigger are the two most important parts. The upper receiver and lower as long as it is quality mil-spec along with a M16 BCG will do the job. The type of ammo you going to use will be important.

Here is a link with some good info: http://www.mk12.net/MOD_1/MOD_1.html
 
If you are planning to shoot at the ORA, you want to have a rifle that you can handle well. Out of the 210 so of shots being fired in each match, only 10 shots are at 500m, with another 10 shots at 400m. 70 shots are done standing within 100m, and other 50 shots are done kneeling at 200m. Another 40 shots are done prone at 300m. The rest of the shots (20) are done at kneeling and shooting at moving targets within 100m.

You probably want to think hard before overly fixating on that 10 shots at 500m. One thing for sure, you won't need a muzzle brake.
 
Thanks for the tips, guys. After thinking about it a bit more today, I can't help but think it would be wiser for me to maybe find a used 18" upper and get some more practice in before I go too crazy with shiny new toys.
 
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