I'm looking to build a basic bitch 14.5" upper. Based

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Don't I feel silly, asking a weapon related question on /k/. I guess next time I should shill for my favourite waifu instead.

Or maybe wait a hour. It is sunday funday we are all at the range morning Scalia


Midlength is a joke.

I should be at the range mourning Scalia

You said basic bitch, so don't worry about it.

If you go midlength you'll have less recoil, slower bolt speed, longer bolt lug life, and a few other things. If it's just for cheap blasting and your life won't depend on it for thousands of rounds, don't worry about it.

14.5 carbine gas is fine. I've got a 14.5 pin and welded with mid gas and it is fine too, the gas port is just bigger...

>>28919176
I don't think whoever drew that gun, knew what the fuck they were even doing.

I personally like the look of the midlength and the slightly longer handguard options. I've been told they're a little better in terms of parts wear and a little softer shooting but I don't know how noticeable that would be until you get into 18-20 inch rifle uppers.

>>28919310
What makes you say that?

>>28919445

Mid length seems ok but I'm not sure its really worth the trouble.

Unless your AR is going to spend its entire life doing bench rest shooting 16" carbine length seems to be the best combination of accuracy and lightness/mobility/commonality

Ballistics on 18" and 20" barrels arent really that much more impressive than 16" from what I've read.

>>28919508
Way to be a retard.
Think about it like this op. Are you building a full sized rifle? A mid sized rifle? Or a carbine? For reference a rifle is 20"+, mid is 16-20, and carbine is 14-16. You can mess with different bcg and buffer systems to extend the range of each.

>>28918904
>Is mid-length worth the additional dollarydoos

How about buy online? Or just get carbine length?

>>28919554

>calls you a retard

>doesnt mae any counter argument

prove me wrong fagt

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>>28919554
>You can mess with different bcg and buffer systems to extend the range of each

I prefer the looks of carbine length on 14.5 and 16" rifles if you're going to be using an A2 front sight.

>>28919508
How does a carbine length gas system make a 16" rifle lighter and more mobile than a mid length gas system? Is there something I'm missing?

>>28918904
I like mid-length for the reason 18" barrels should be rifle length (or have adjustable gas blocks). It's ever so slightly easier on your rifle when you suppress it. I plan on going mid-length because I plan on suppressing my rifle. Either that or I will go SBR and build a mk18 clone.

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>>28919586
I have a midlength and I agree. I actually like the 7 inch carbine length handguards tbqhhh

>>28919592

It doesnt make it lighter and more mobile than a midlength, but carbine parts are more common than midlength.

I was saying 16" carbine is lighter and more mobile than an 18" or 20"

>>28918904
Carbine; 11.5 , 12.5 , 14.5
Midlength; 16
Rifle; 20

Do not buy a 14.5 Midlength. No reason you are merely adding potential issues. Midlength was developed for 16" and you also can no longer utilize bayonet with a 14.5" Midlength.

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Is there any real evidence that midlength has any measurable reduction in wear over a carbine length gas system on a 16" barrel?

Seems like the Internet just repeated ancient bullshit posted on arfcom so much it became fact.

Op specifically said 14.5. That you still haven't realized this confirms my diagnosis.

>>28919640
Yes, shoot it both of them side to side. But the difference isn't a big deal because it's fucking 5.56

>>28918904
Not for 14.5. If it were 16 inch then Mid-length would be superior but carbine is ideal for a 14.5.

>>28919635
Midlength is good to 13.7"
Provided you get it from someone good
And who cares about bayonets

>>28919601
I feel your pain I have a 16" BCM midlength upper sitting in the safe because I don't like the way it looks. Once i cut down the sight and throw a freefloat on it, it should be good.

>>28919640
Yes.

The closer the gas block is to the chamber, the harsher the extraction and more violent impulse and higher the pressure. The difference is huge.

By the same token, the more barrel AFTER the gas block, the longer the dwell time and there is a curve where too much will just be increased pressure and wear and too little will cause short stroking.

Midlength was developed to lessen the increased wear on extractor/bolt and allow the same amount of barrel in front of the rifle as a 14.5" Carbine.

You also cannot mount a bayonet on 16" Carbine or 14.5" Midlength. Keep your 16" to middies and your 14.5" to carbines and 20" to rifles.

Use the best length system to optimize performance and reliability of parts.

>>28919690

Right, but is there measurable difference in wear was the question?

The only difference I see is moar rails and a tiny difference in felt recoil.

>>28919730
TLDR;
Yes it is measurable and yes as you enter the say 10,000rd mark you will see a signifant difference in wear n tear.

but you will not notice it's significance if you are just a hobby shooter.

>>28919690

you can defnitely mount a bayo on a 16" carbine, just not a milspec one.

>>28919758
With an adapter*

With an adapter, you could mount a bayonet on a 24" Varmint gun...

>>28919771

sure... but were talking about AR's here chief.

>>28919757

After 10k rounds the barrel is likely near the end of its life and the bcg has gone through a few sets of rings / extractors / etc regardless of gas system.

>>28919777
>24" varmit
we're still stalking about ARs here, chief

>>28919495
Does the bolt rotate downwards?

>>28919837

except varmit's are usually free floated without bayo lugs, retard.

>>28919869
>usually
not always and
>adapter
even if it doesnt have a bayo lug, guess what, a bayonet can still be attached.
is it dumb? sure, but we were simply talking about what is doable.
basically, you can put a bayonet on anything, why youre claiming contrary, i guess you didnt know. well now you do.

>>28919757

> hobby shooter

If you are mil this is your armorers problem. Try harder there call of doody.

>>28919810
Your barrel if it's CMV and Chromed it should definitely not be at the end of it's service life at 10,000rds. Get a better barrel dude.

IF YOU WANT *OPTIMAL* PERFORMANCE GET 16" MIDLENGTH

IF YOU DONT GIVE A FUCK GET 16" CARBINE

It doesnt matter to most but if you have an option there is no rational choice to a 16" Carbine.

>>28919930
Woah dat projection.

I am not mil but I am LE. Hobby shooter ie; Someone who goes to the range every other weekend.

If you shoot in any large volume then you should probably get the best gas system for your barrel length.

>>28919927

>im claiming contrary

never did that happen, read the comment chain you're arguing with me about something we agree on

>>28919939
If you want optimal performance use 20" rifle. Fuck off with your sissy carbines

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>>28919950

Ha, your garden variety leo putting more rounds downrange than a hobbiest.

>>28919961

>If you want considerably better mobility and performance almost as good as 20" get 16"

fixed that for you

https://www.youtube.com/watch?v=zEaMw_yCLmo

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>this thread
Wew.

OP, despite what you're seeing here, a middy gas system works fine on a 14.5" barrel. Along with the 1.5" reduction in barrel length, the recoil impulse is softer compared to a 16" middy. It's also softer than a carbine setup. If you're keeping the A2 FSB, you have better sight radius and more railestate compared to a carbine. 14.5" middy is, as a bonus, also sexy as hell. Whether you think that'll be worth the extra $200 is up to you, but I have absolutely no regrets getting my 16" middy cut down to a 14.5" middy.

>>28920012
I have no doubt that your "garden variety" LEO does not put as many rounds down range as a typical /k/ hobby-shooter.

If you dont shoot much, get whatever you want.

If you do shoot alot (even as a hobbyist or patrol officer or non-grunt .mil) then maybe you should consider getting the best bang for your buck which would be middy if you are going 16" or carbine if you go 14.5".

>>28920059
Its softer (btw its a fucking .223/5.56) at the expense for reliability in adverse conditions, and you cannot mount a bayonet. This makes literally no redeeming factor for a 14.5 middy except aesthetics.

Guns are tools btw, and who gives a fuck how slick a 14.5" middy looks. I am legitimately interested in what the benefits of a 14.5" middy are over a 14.5" carbine or 16" middy. Because so far I have only seen it being a solution looking for a problem.

>>28920084
>guys help me
>you're wrong, shut up

That's you.

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>>28920059
I feel as though most people prefer 14.5 to 16 but to be honest I kinda wish I stuck with 16. My next upper is probably going to be a 16 again; I love my 14.5 but I like having he option of changing muzzle devices.

>but if silencerco and BE ever make an ASR 249, I'm getting a 13.7

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What the fuck is going on in this thread?

>14.5 or 16 - Middy
>Under 14.5 - Carbine
>Over 16 - Rifle

>>28920084
>at the expense for reliability in adverse conditions
Good thing the experienced folks at ADCO are able to determine whether any measure needs to be taken to improve reliability (spoiler; it involves widening the gas port ever so slightly). I'm interested to see how you came to the conclusion that a 14.5" middy isn't going to function.
>and you cannot mount a bayonet
Oh no, I can't use an archaic fighting method that sees almost no use in the past half century. If you're that determined to mount a stabbystabby on your shootyshooty, there are easy fixes for a 14.5" middy.
>This makes literally no redeeming factor for a 14.5 middy except aesthetics.
And reduced barrel length, and reduced weight, and softer recoil impulse. You know, those little things.

>>28920152
that a bcm rail?

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>>28920130
> I love my 14.5 but I like having he option of changing muzzle devices.
Now this is a valid complaint. Unless you SBR it (and it honestly doesn't get much more retarded than going through the entire SBR process for 1.5" in reduction), you're stuck with whatever MD you have P&W'd. I stuck with the A2 FH because it never looks bad and it does what it's meant to well enough. For more discerning individuals, it could be another story.

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>>28920059
>sight radius
>railestate

The same can be accomplished with a 10-13" free float handguard of some kind and flip up or fixed irons up front, but with even more sight radius and ability to grip the weapon out further--nice for Sasquatch tier guys. This is the reason I hate carbine handguards, I feel too scrunched up.

Does middy work on 14.5 inch? Sure. And if that's what blows your hair back, good on ya. Only reason I'd go that way was if I just had to keep the A2 sight

>>28920152
>He doesnt know about intermediate length

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>>28920184
>Only reason I'd go that way was if I just had to keep the A2 sight
Hence
> If you're keeping the A2 FSB

>>28920153

To be fair the recoil impulse on 5.56 is small.

I really don't see any difference between mid or carbine on a 16" other than shooter preferences, and thats fine. I really don't see any documented proof about wear/reliability that people claim.

>>28920176
LaRue

>>28920203
Fine, be a special snowflake

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>>28920184
>>28920208
I like my FSB

>>28918904

Mid-length is meme length.

>>28920266
>To be fair the recoil impulse on 5.56 is small.
That it is, I was still able to discern a different in felt recoil in my middy after it had its barrel reduced. Softer impulse is always a plus, even if what you felt beforehand wasn't really anything to write home about either.

Holy fuck, you people are hopeless

I'd expound upon the advantages of midlength gas system (really no cons), but the vehement retardation I see here really turns me off

I'll say that if there's a $200 difference between the same gun with just different length gas systems, you need to look elsewhere

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>>28920300
>if there's a $200 difference between the same gun with just different length gas systems, you need to look elsewhere
This is also true.
>>28920282
I really can't bring myself to get rid of mine, the look is too defining of the AR rifle.

>>28920295

I am thinking of going 14.5" middy but I have questions

a) Will I need a retarded 1.5x length A2 if I want an A2 like you have

b) How well will it do suppressed, special considerations

c) If it's softer shooting wouldnt that mean there is less gas pressure and wouldnt that mean less reliability because that freaks me out.

>>28920316
>I really can't bring myself to get rid of mine, the look is too defining of the AR rifle.

I agree, if I change anything on this AR, I'll pick up a Centurion C4 Mid cut-out rail and sell the LaRue.

>>28920325
>a) Will I need a retarded 1.5x length A2 if I want an A2 like you have

If you go specifically 14.5", yes. Honestly, I went with 14.7" so I could keep the standard A2 FH, because fuck that elongated shit.
>b) How well will it do suppressed, special considerations
I honestly have no idea. You might shoot off the folks at ADCO an email asking what their experience with that is.
>c) If it's softer shooting wouldnt that mean there is less gas pressure
Yes, but this can be compensated for, if it needs compensation at all to begin with. Don't shoot underloaded crap like Tulammo and stick with a standard carbine buffer. I've shot mostly Wolf Gold through mine, but the few hundred rounds of Brown Bear it's seen gave it no issues whatsoever.

>>28920300
>Holy fuck, you people are hopeless

Sorry for not taking some anon's word as gospel on a Korean finger painting imageboard.

>>28920300
if you're the guy swearing that 14.5 midlength is bad, then please don't come back

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Git a carbine gas system for 14.5in barrels. It looks better.

>>28920412
Then why are you here?
>>28920430
That was my first post this entire thread, and I even insinuated middies are generally superior

KYS you retarded piece of inbred shit

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>>28920178
Since picking my MCX I've also realized how little the 1.5 inches really matter from a handling perspective. Obviously if I were to do tacticalfagtical urban or vehicle ops, a 14.5 is going to suck just the same as 16.

I still think 14.5 mids are the most asethic, which is very important to some people, but I've become somehwhat disinterested in 14.5's now that I have a 10.3

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>>28920472

are you me? (almost)

>>28920487
>Then why are you here?

Dank memes?

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>>28920502
maybe

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>>28919669
>who cares about bayonets
>WHO CARES ABOUT BAYONETS!!!!!!

Say it again! I FOOKIN' STAB YOU!!

>>28920644

And my sidearm is a glock 19, the almost continues.

>>28920673
Same people who get butt blasted over ar gas systems apparently.

>>28920552
Acceptable

>>28920673
I think he meant it as "get this thing from someone that knows their shit, and that is someone who cares about bayonets".

That's how I read it, anyway.
Also, in the pic you posted, they all seem to be m7 models. What have you heard about the OKC 3S? I'm looking into one for my AR, a 16" mid length.

Why do I find most of the ARs with overly long barrels in relation to their gas systems (16" with a carbine length, or some shit) to look absolutely retarded?

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>>28921149
Because they look absolutely retarded.

>>28921096
M7 is love
M7 is life

But OKC 3S a pretty cool guy