Which is the best jack-of-all-trades gas system?

>>34439360

blowback

20" full length

>>34439360
Carbine, but only kind of

The AK.

>>34439360
short stroke gas piston

>>34439360
long recoil

>>34439360
20" pencil profile barrel w/ rifle length gas system.

long free float handguards not necessary, fixed front sight.

14.5" with pinned muzzle device, midlength gas.

16" midlength gets second place.

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>he wants his gun to get dirty constantly for no reason
Short recoil is the only way.

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>>34439360
20" gov profile on a carbine lower receiver.
Protip: you can't argue

>>34439407
I heard 14.5 midglenth can be picky with cheap 223.

>>34439403
>gas

>>34439447
14.5 carbine then, all three are great, mines a 16" middy

18" with rifle length.

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>>34439416
>short recoil
>not long recoil
[heavy breathing]hon[heavy breathing]hon[heavy breathing]hon

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>>34439455

>>34439360

A1/pencil tube, 1/9 ~1/8 twist.
Barring that, use an old M16A1 tube, keep shots inward of 300 meters.

>>34439515
>he wants an overly complex, harder recoiling, heavy system to do the same shit

>>34439360
>not getting a gas trap AR with a 14.5" barrel and a rifle length gas tube

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>>34439500
Built this for my dad's birthday. Gotta admit its comfy as fuck for an innacity rifle.

Colt SOCOM barrel is heavy but a tack driver inside 300 yards. I'd trust my life to it.

Innadesert and I'm rolling with a 20 inch just for the velocity. Wouldn't care to be in a vehicle or building with anything past 16.

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What is the best twist rate for your gas tube?

>>34439606


One in never?

>>34439606
If you're not shooting heavy rounds or tracers, 1/8.

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>>34439613
>>34439635
WRONG

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This is my fav I own (I have 5 AR's). California Highway Patrol trade in dissipator from the Clinton years (check out receiver engraving). Honestly, they all work just fine. Middy is the best of both though (light recoil/too reliability). That said, never had a failure with a carbine.

>>34439679
UGGGGh it says "restricted law enforcement/government use only" indicating it's a ban era rifle (has all the ban features)

>>34439671
This is a thing?

>>34439717
Not really. A gimmick, yeah.

>>34439717
I'm guessing it's a "pistol" that needs he extra gas length

>>34439741
Good for practicing malfunction drills.

>>34439360
Short recoil version.

>>34439441
>doesntdolegs.jpg

>>34439360
rifle>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>carbine>middy
if your wondering why carbine is above middy its cause carbine is standardized middy is not. bunch of different gasport sizes on mid depending on brand. carbine is "overgassed" which makes it more reliable while increasing wear.

>>34439441
i put an m4 upper on a 16 lower in the armory the other night. it was way cooler than the reverse but a 20" with adjustable stock is better in nearly every category.

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>>34439385
This.

>>34439360
Blow forward.

>>34439360
Black powder Martini action.

>>34440742
*you're

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>>34441642
Toggle lock.

>>34439407
>midlength gas on a carbine

Gas yourself.

>>34441698
How I feel when PSA has a dozen rifle lengths with 18 inch barrels but not one that's Midlength.

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>>34439515
Here you go Anon.

>>34439360
jew destruction gas system

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Carbine: 10.3" - 13.7"
Mid: 14.5" - 16"
Rifle: 18" - 20"

Fight me

>>34441714
Mid length on 18" can often be over-gassed
If you use a lighter buffer, you should get really good reliability
Not to mention the lower recoil

inb4
>5.56
>recoil

>>34441944
Isn't the SPR 18" middy? If its over gassed H2 buffer should work? I heard most SOCOM M4s are meant to have a H2 buffer to support full auto anyway.

I don't want to make a thread for this so i'll ask here: what difference does having a different size buffer tube make? Does it just determine the length of the buffer? Can i use a short buffer tube with 20' barrel and rifle length gas system?

>>34441992
Basically. Length of the buffer and spring. You can use a carbine buffer with a rifle gas system. Look at the Canadian service rifle.

>>34441969
The mk12 and most other SPRs are rifle length
If it's over gassed, yes you'll improve reliability by using an H2 or H3 buffer, but it's more reciprocating mass, so the perceived recoil will be bigger
Obviously it's not the worst case scenario, but less recoil is better than more.
There's also a little less potential for gas in the face
And yes, M4's work better with an H2 buffer

>>34441992
Rifle buffers are generally heavier and won't work in a carbine buffer tube due to the length
Generally people just use carbine buffer tubes nowadays
You can definitely use it with a 20" barrel
H2 buffers generally work
Also look into the A5 buffer tube. It's longer than a carbine, but still adjustable

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>>34441698
>14.5 middy
Objectively the softest shooting setup if you don't want a fucklong AR and reliability isn't compromised, off yourself you utter mong.