CMMG 18" SPR upper

[SoCalAR]

I just got my 18" SPR upper from tenpercent and it looks like a fine piece of hardware. I am very excited.

-Brian

Are you the culprit then?!

[tenpercentfirearms]

I just got my 18" SPR upper from tenpercent and it looks like a fine piece of hardware. I am very excited.

-Brian

Way to rub it in! Yes he is the culprit. Spam his e-mail account in revenge.

No I am the culprit. He saw one in stock on the website and ordered it. It was entirely my fault, Riskas's benefit, and SoCalAr's misfortune. What drama.

[redcliff]

I keep hoping Wes will open up a store between Sacramento and Redding...

[mcubed4130]

Way to rub it in! Yes he is the culprit. Spam his e-mail account in revenge.

No I am the culprit. He saw one in stock on the website and ordered it. It was entirely my fault, Riskas's benefit, and SoCalAr's misfortune. What drama.

When I noted the quantity in stock said "2" - in the 2nd week of April... I hit the checkout button. Glad I did. I was bummed you were out of stock on the ARMS40L - but SJGE had them so I picked it up from them.

Now on to mounting optics... although looking at pricing for scope mounts makes me wonder if I should go buy a more expensive scope... It just sucks when the scope mount is nearly as much money as the scope was.

-M3

[Ryan HBC]

That just means you need a better scope! This is an SPR after all...

[scfast]

who hoo better scope on an spr is the way to go on that note i do like my cmmg spr but it's out the door for an adco.

[aplinker]

That just means you need a better scope! This is an SPR after all...

No, it's not. It's an 18" barreled mid-length.

[mcubed4130]

That just means you need a better scope! This is an SPR after all...

I'll try things out with my SuperSniper 10X42 for now... we'll see how things go... I have some match ammo coming to try out the 1/8" twist.

I'm just a bit shocked at the price of things like the Larue SPR mount... but I suppose I should just get on with it.

-M3

[aplinker]

I'll try things out with my SuperSniper 10X42 for now... we'll see how things go... I have some match ammo coming to try out the 1/8" twist.

I'm just a bit shocked at the price of things like the Larue SPR mount... but I suppose I should just get on with it.

-M3

In a lot of ways, the LaRue mount is very reasonably priced. Try pricing nice scope rings and a rifle base (which this essentially is). You won't regret having it, that's for sure.

You'll probably want a variable magnification optic on your AR. It's nicer for quick run and gun stuff at shorter ranges... with the 10X you're a bit limited on FOV.

You'll be able to punch paper great, though.

[Jicko]

Most builders won't guarantee accuracy because accuracy is dependent on shooter skill much more than everything else.

I thought LMT does.

[mcubed4130]

Shot an AR yesterday for the first time and now I think I might be coming down with the disease even more!

Anyway, I put some money down at 10% and Wes agreed to hold the CMMG 18" mid-length he had in stock. I'm gonna go pick it up this weekend and I'm pumped.

My question: What exactly is the Special Purpose upper for? Is there any advantage over a 16"? I've read the mid-length gas system is better for a few reasons. I get a longer sight radius with it (though at this point in my young shooting career I don't think that's going to matter too much for me) which some folks seem to prefer. I'm more curious about the 18" barrel. I suppose I'm going to get more velocity out the muzzle...

Can anyone throw a little info my way on the benefits of an 18" vs. a 16"?

Thanks.

The extra 2" of barrel; gets you little more velocity... not a whole lot.

The CMMG barrel is 1/8" not 1/7" or 1/9" - there are lengthy discussions about what twist rate is better depending on what ammo you choose. I wanted to use match grade ammo - therefore I wanted 1/8" twist.

Mid-length sight distance; is better than carbine - but not as good as rifle... assuming you plan on using irons. If you are going with optics... eh... not sure it makes much diff. Note; if you want to - you can modify to a low profile gas block; and then put on rifle length handguards either moving the original triangle sights forward on the barrel and/or going with flip/up buis.

Mid-length gas - as has been already discussed gives various advantages, one not mentioned is the fact that there is a relationship between barrel length and where the gas system is located.

Have fun man.

-M3

[tenpercentfirearms]

A lot of this discussion makes me revert back to what I tell a lot of customers. Guys on the Internet like to debate back and forth about twist rates, gas systems, M4 feedcuts, and on and on. I recommend you simply buy an upper and go spend your time shooting it rather than worry about all of this crap. In the end if you buy decent quality parts, you will never notice the difference and save yourself from getting an ulcer.

Just go buy it and shoot it.

[NiteQwill]

A lot of this discussion makes me revert back to what I tell a lot of customers. Guys on the Internet like to debate back and forth about twist rates, gas systems, M4 feedcuts, and on and on. I recommend you simply buy an upper and go spend your time shooting it rather than worry about all of this crap. In the end if you buy decent quality parts, you will never notice the difference and save yourself from getting an ulcer.

Just go buy it and shoot it.

Well said.

[ar15barrels]

Just go buy it and shoot it.

Just go buy a rifle or mid-length and shoot it.

[SoCalAR]

Just go buy it and shoot it.

Yeah that's pretty much what I'm doin I guess. I still don't really know a whole lot about how these things actually work, I just plan on having a good time.

And next Sunday I plan on having a good time with the Sig 556 my mom just DROS'ed at your shop yesterday! I guess it's not the same as building your own AR but I pretty much have the coolest mom ever.