AR in x39?

[paul73]

That bullet drop is a cliff-dive !

well, we were shooting it from AKs at 500 meters, and hitting stuff, so, it should still fly up to 300yds, probably.

 

[Lefty38-55]

That bullet drop is a cliff-dive !

Yup … remember that old saying … “If you can’t KILL it w/ an AR, you can’t HIT it with an AK!”

 

[DW357]

Wow never knew there were preban AR x39 mags. Saw these “Frankenmags”in the classifieds (first photo)

SOLD - PREBAN Modernized 7.62x39 AR15 $2999

Want an AK…but in AR form? Here’s your solution. Preban Essential Arms chambered in 7.62x39 with professional Cerakote finish in Tungsten Grey Nickle Boron Coated BGC (bolt, bolt carrier, firing pin, cam pin) Enhanced 7.62x39 firing pin Radian Raptor Charging Handle Adjustable Buffer (H1-H3)...

www.northeastshooters.com

Do they actually function fine? Where do you find those? Gunbroker?

 

[DarkJoker33]

I also sae this someplace nesides here and was wondering the same thing

 

[42!]

I just got my BRN180 upper in 7.62x39, it'll be my 3rd SBR using the BRN180 upper, the other two being 223 and 300. The others have worked flawlessly, but I realize I may be pushing it. Still I like that there is no buffer tube, making it a much better platform for a SBR with folding stock or an AR lower based pistol. Eventually I'll be trying it with both modified AR mags, and the purpose built 7.62x39 AR mags.

 

[DW357]

Shot some red box red army, white box red army and Igman brass x39 today. Had one dud in the white box red army. The rest was fine.
I’m making sure to keep all of the x39 brass so I can sell it off at some point. No way I’m going to reload that. Case rims get a little banged up but should be g2g for reloading.

Then of course I broke one of the steel plate straps. It had been hanging by a thread for months and finally gave out lol. Prob have to use my angle grinder to cut off the bolts as the threads are f***ed and unlikely I’ll get the nut off

 

[AJK129]

Shot some red box red army, white box red army and Igman brass x39 today. Had one dud in the white box red army. The rest was fine.
I’m making sure to keep all of the x39 brass so I can sell it off at some point. No way I’m going to reload that. Case rims get a little banged up but should be g2g for reloading. View attachment 647556View attachment 647558

Then of course I broke one of the steel plate straps. It had been hanging by a thread for months and finally gave out lol. Prob have to use my angle grinder to cut off the bolts as the threads are f***ed and unlikely I’ll get the nut offView attachment 647557

I've been using tow chains and they work pretty well with the included clips, which are cheap to replace

 

[DW357]

I've been using tow chains and they work pretty well with the included clips, which are cheap to replace

View attachment 647569

Nice setup

 

[Sunny]

The only thing I don't like about x39 is that the bullet destroys steel targets. 1/2" is barely sufficient.

 

[DW357]

Good as new. The new 20V DeWalt impact drill I bought over the weekend came in handy to remove the nuts.
Though I need to order more hanger straps and bolts. Used my last spare kit. I use the rubber belt hangers from shootsteel and these bright colored green hangers from thelaststand.com.
They last a long time. Once a year at most.

 

[DW357]

The only thing I don't like about x39 is that the bullet destroys steel targets. 1/2" is barely sufficient.

Really? I use the 1/2" AR500 from shootsteel and it lasts a long time. I mean it eventually gets a little pitted but still holds up fine otherwise. I don’t shoot at it any closer than 60 yards FWIW

 

[jpm]

Wow never knew there were preban AR x39 mags. Saw these “Frankenmags”in the classifieds (first photo)

SOLD - PREBAN Modernized 7.62x39 AR15 $2999

Want an AK…but in AR form? Here’s your solution. Preban Essential Arms chambered in 7.62x39 with professional Cerakote finish in Tungsten Grey Nickle Boron Coated BGC (bolt, bolt carrier, firing pin, cam pin) Enhanced 7.62x39 firing pin Radian Raptor Charging Handle Adjustable Buffer (H1-H3)...

www.northeastshooters.com

Do they actually function fine? Where do you find those? Gunbroker?

There are preban x39 mags but most don't work. If you can find one that's made from an AK mag with an AR mag welded to it at the top, those supposedly work well. I tried 2 pre-ban 30 rd x39 mags and neither one would feed if you put more than 6 rounds in it. They bind up due to the curve of the mag.

 

[DW357]

There are preban x39 mags but most don't work. If you can find one that's made from an AK mag with an AR mag welded to it at the top, those supposedly work well. I tried 2 pre-ban 30 rd x39 mags and neither one would feed if you put more than 6 rounds in it. They bind up due to the curve of the mag.

Thanks. I’ll stick with the new 10 round duramags for now. They’ve been extremely reliable

 

[jpm]

Thanks. I’ll stick with the new 10 round duramags for now. They’ve been extremely reliable

yeah the ones Midway sells for like $15 work great too

 

[dhuze]

You'll be dumping it soon. These guns were never meant for this cartridge. I've not met a single person that kept a 762 x39 AR.... ever.

Hi drgrant, Nice to meet you.

 

[drgrant]

Hi drgrant, Nice to meet you.

I was wrong, but you guys are still masochists. Broken bolts, firing pins etc. thats serious dick self punching territory.

 

[DW357]

I was wrong, but you guys are still masochists. Broken bolts, firing pins etc. thats serious dick self punching territory.

Having a SBR in x39 is worth the minor part breakages
I haven’t broken a FP or bolt yet but a couple extractors. They last a little while and BCA sends replacements for free so I don’t mind. If shit was breaking every range trip and there was no customer support for the parts I probably wouldn’t bother lol.

 

[DJBrad]

Having a SBR in x39 is worth the minor part breakages
I haven’t broken a FP or bolt yet but a couple extractors. They last a little while and BCA sends replacements for free so I don’t mind. If shit was breaking every range trip and there was no customer support for the parts I probably wouldn’t bother lol.

Fa busted on my upper but was replaced with no cost. Love that gun.

 

[DW357]

Only thing I don’t like about the BCA upper is that it’s heavy. Uses a HBAR 10.5"
Not sure if it’s worth trying to find a lighter weight profile barrel for such a cheap upper.

 

[jpm]

I don't know how you guys are breaking parts like that, mine is still unbroken.

 

[drgrant]

I don't know how you guys are breaking parts like that, mine is still unbroken.

Round count? @andrew1220 beats on his like rented mule

 

[DW357]

I don't know how you guys are breaking parts like that, mine is still unbroken.

Round count? @andrew1220 beats on his like rented mule

This lol.

 

[Coyote33]

You'll be dumping it soon. These guns were never meant for this cartridge. I've not met a single person that kept a 762 x39 AR.... ever.

From Wikipedia. So, are they ALL wrong?

AR-15 cartridges​

Rimfire cartridges​

• .17 HMR[1]
• .22 Mach 2
• .17 Winchester Super Magnum[1]
• .22 Long Rifle[2]
• .22 Winchester Magnum Rimfire[1]

Centerfire cartridges imperial measurement​

• .17 Mach IV
• .17 Remington Fireball
• .17 Remington[1]
• .17-223[3]
• .20 Practical[4]
• .20 GPC (wildcat)
• .22 GPC (wildcat)
• 22 Grendel (wildcat) aka 224 Grendel
• .22 Nosler
• .22 PPC
• .204 Ruger[1]
• .222 Remington
• .223 Remington – Original AR-15 cartridge: .223 cartridges may function in a 5.56×45mm rifle, however 5.56×45mm cartridges may produce excessive pressure in a .223 Rem rifle. On the other hand, a .223 Wylde chamber is used on .223 Rem rifle barrels to allow them to safely fire either .223 Remington or 5.56×45mm NATO ammunition.[5]
• .223 Winchester Super Short Magnum[5]
• .224 Kritzeck (wildcat of a .223 Remington with shortened neck)[6]
• .224 Valkyrie
• .24 GPC
• .243 LBC[3]
• .243 Winchester Super Short Magnum[5]
• .25 Winchester Super Short Magnum[5]
• .25-45 Sharps
• .257 Ocelot (wildcat)
• .25 GPC (wildcat)
• .26 GPC (wildcat)
• .27 GPC (wildcat)
• .277 Wolverine (semi-wildcat)
• .277 MSR (Dasher Wildcat)
• .28 GPC (wildcat)
• .30 American[7]
• .30 Carbine[1]
• .30 GPC (wildcat)
• .30 Remington AR[8]
• .30 Sabertooth (wildcat)
• .300 OSSM[5]
• .300 AAC Blackout (7.62×35mm)[8]
• .300 Whisper[8]
• .300 HAM'R – Wilson Combat[9]
• .338 SOCOM (wildcat)[10]
• .338 Spectre (wildcat)
• .350 Legend[11]
• .357 Automag (wildcat)[12]
• .358 MGP (wildcat)
• .358 SOCOM (wildcat)[13]
• .358 Yeti (wildcat)[14]
• .375 Stalker (wildcat)
• .375 SOCOM
• .400 AR (wildcat)[15]
• .40 S&W[16]
• .44 Automag (wildcat)[17]
• .44 Remington Magnum (wildcat)[18]
• .44 SOCOM (wildcat)[19]
• .440 Corbon Magnum (wildcat)[20]
• .45 ACP[21]
• .450 Bushmaster[1]
• .458 SOCOM[22]
• .475 SOCOM (wildcat)[23]
• .499 LWRC
• .50 Action Express
• .50 Beowulf[24]
• .50 SOCOM (wildcat)[25]

 

[Coyote33]

It wouldn't let me put them all in one post (more than 10000 characters?), so here's the rest:

Centerfire cartridges metric measurement​

• 5.45×39mm[1] – intermediate
• 5.56×45mm NATO – Original M16A1 cartridge: Can also safely fire .223 Remington, intermediate[1]
• FN 5.7×28mm – PDW
• 6mm Mongoose (wildcat)
• 6mm ARC – rifle
• 6mm Dasher
• 6mm AR (wildcat)
• 6×45mm – intermediate
• 6.5mm Grendel[1] – intermediate
• 6.5 Timberwolf (wildcat)
• 6.8×39mm (.277 Wolverine)[26][27] – intermediate
• 6.8mm Remington SPC[8] – intermediate
• 7mm Valkyrie (wildcat)
• 7.62×33mm (.30 Carbine) – carbine
• 7.62×37mm Musang (wildcat) – intermediate
• 7.62×39mm[8] – intermediate
• 7.62×40mm Wilson Tactical[8] – rifle
• 7.92×33mm Kurz – intermediate
• 9×19mm Parabellum[2] – pistol
• 9×39mm[28] – subsonic rifle
• 10mm Auto (10×25mm)[21] – pistol
• 10mm SOCOM (wildcat)[29]
• 10x43mm (.400AR wildcat)[30]

 

[Coyote33]

Would like to see more pictures of @djbradles setup, and others.

 

[drgrant]

@Coyote33. , 80% of those id never use in an AR. Most of the rimfires don't even count because they're mostly blowbacks and the system can be cheated. There's probably a healthy amount that work well. 762x39 is a monkey f***ing a football, tho. I get the allure but the frustration factor makes it a black cross. I'd likely feel differently if i was running a rifle outdoors a few times a week. I'm lucky if i get 3x a year at this point. Hoping to increase that.

 

[Atlantis]

@Coyote33. , 80% of those id never use in an AR. Most of the rimfires don't even count because they're mostly blowbacks and the system can be cheated. There's probably a healthy amount that work well. 762x39 is a monkey f***ing a football, tho. I get the allure but the frustration factor makes it a black cross. I'd likely feel differently if i was running a rifle outdoors a few times a week. I'm lucky if i get 3x a year at this point. Hoping to increase that.

Never discount the satisfaction of going to a carbine course, and hearing the following after the first few strings of fire.

“Hey man, you shooting a .30cal? Those holes are massive”

There’s probably no cheaper way to add a couple inches if you know what I’m saying

 

[DW357]

Only thing I don’t like about the BCA upper is that it’s heavy. Uses a HBAR 10.5"
Not sure if it’s worth trying to find a lighter weight profile barrel for such a cheap upper.

Well I pulled the trigger on a 10" Diamondback medium contour barrel and adjustable gas block. Seems like an AR in x39 could really benefit from an adjustable gas block. Hopefully this all works and I can fine tune it

 

[PatMcD]

I had a semi-long conversation with John Hollinger about alternate AR15 chamberings. He says he discourages every person who calls and wants something built that's based on the 7.62x39 case. Just too much lug needs to be removed on the bolt. It's just a matter of time before one snaps off and ruins your day.

 

[dhuze]

Round count? @andrew1220 beats on his like rented mule

With his record on everything I don't think you can use @andrew1220 as any reference on if a firearm will break or not.