Never owned an AR before

[hdwhit]

SSN Vet wrote:
...do yourself a favor and don't buy an AR with carbine length gas system...

Why?

• Are you concerned about propellant gasses being hotter nearer the chamber?
• Are you concerned about erosion at the gas port?
• Are you concerned about the effect of gasses on the bolt and bolt carrier?
• Are you concerned about barrel wear?
• Or the temperature of the handguards nearer the chamber?

When you simply say, "Don't" do something, nobody reading your post has an opprtunity to learn from your knowledge and experience.

 

[NWcityguy2]

There are a number of reasons that mid-length is an upgrade over carbine. Larger grip surface, less port pressure, correct dwell time, less carrier velocity, and longer sight radius. I probably missed one or two as well. But, those advantages don't add up to a "must, gotta have, need to own" difference. They certainly don't necessitate upgrading from one to the other if the first is functioning properly. They are improvements none-the-less and if the price is equal, it makes the mid-length an easy choice.

 

[Varminterror]

I've built literally hundreds of AR's in the last ~18years, and given systems which have options for length, I recommend, and build for myself, shorter gas lengths with adjustable gas blocks, favored over a longer gas system. Meaning I'd recommend an AGB and a carbine length gas over a mid-length.

The mid-length carbine gas system has a lot of hype these days, and for people not willing to use an AGB (cost) and those who don't really worry much about their loads, it does make sense. But for people who really know how tune rifles and people who really want it to run well, a carbine length in a 16" or 18" barrel with an adjustable gas block is the better method.

I'm sure that will draw a lot of fire from some trolling know it all, to which, I would revert them back to the thread where we debated this a few months ago and the common misconceptions of gas pressure mitigation and dwell time were debunked.

I can tune a carbine length with an AGB to act like a mid-length, but you can't get a mid-length to operate like a carbine length. That's versatility.

 

[hso]

Online or in the store? How long ago was this?

It was an online one day sale notice that I took advantage of.

 

[ColoradoShooter77]

CDNN is running the Anderson carbine with sling and red-dot for $499.

 

[NWcityguy2]

I'm sure that will draw a lot of fire from some trolling know it all, to which, I would revert them back to the thread where we debated this a few months ago and the common misconceptions of gas pressure mitigation and dwell time were debunked.

Almost all of the 3-gun community would disagree with you, and many of them are still using adjustable gas blocks. Because...

for people who really know how tune rifles and people who really want it to run well, a carbine length in a 16" or 18" barrel with an adjustable gas block is the better method.

Virtually nobody does this and your the first person I've seen advocate it. The biggest name in competitive rifle shooting, JP Precision, doesn't even sell a 14.5" barrel in carbine gas.

 

[Varminterror]

The biggest name in competitive rifle shooting, JP Precision, doesn't even sell a 14.5" barrel in carbine gas.

Nice straw man. Find where I mentioned 14.5" barrels and then you'd have something. Try again.

 

[Theohazard]

The biggest name in competitive rifle shooting, JP Precision, doesn't even sell a 14.5" barrel in carbine gas.

Nice straw man. Find where I mentioned 14.5" barrels and then you'd have something. Try again.

He's not making a strawman argument. Either you don't understand his point or you don't understand what a strawman argument is.

He said they don't even sell 14.5" barrels in carbine gas. He never once claimed you mentioned 14.5" barrels; his point was that among the common barrel lengths (14.5", 16", 18", 20"), the most likely to have a carbine-length gas system would be a 14.5" barrel. The point was that if a company like JP doesn't even like a carbine-length gas system on their 14.5" barrels, they're obviously not going to use it on their longer barrels. So what does that say about their view on the carbine-length system?

Feel free to address his point, but don't erroneously dismiss it as a strawman argument, because that's not what it was.

 

[BearBrimstone]

When I decided to try out an AR15 I bought a complete upper and lower from Palmetto State Armory. At the time it cost me around $600, but with today's prices I would not be surprised if the same rifle cost closer to $500.

 

[NWcityguy2]

Theohazard, that is exactly the point I was making. Needless to say, they don't make a 16" or 18" barrel in carbine gas.

 

[CoalTrain49]

I don't know a darned thing about AR's but my neighbor does. I shoot with him once a week. He was entry level about 2 years ago and bought a M&P Sport. He shoots it a lot, I know because I get all of his brass.
Anyway, he likes the gun (never had a problem with it) but I think he has reservations about the Eotech sight.

He is now on a mission to upscale. I think his decision was Daniel Defense but I'm not sure which one. I believe he's about to buy a fairly expensive scope also instead of another holographic unit.

I like Colt's so that's what I would buy for no other reason than the company. How's that for tunnel vision?

 

[BrocLuno]

Works for me.

I just want my old Hydramatic Div and be done with all this... But that ain't goinna happen