SKS-FILES FORUM
AK and AR => AR Family => Topic started by: sksmcrossvilletn on June 25, 2016, 04:25:09 AM
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Well as yall know I bought me an Anderson lower. I found this on sale yesterday at Midway. I sold a few things and bought it. I hope it turns out good. It got good reviews.
https://www.midwayusa.com/product/104578/ar-stoner-ar-15-a3-upper-receiver-assembly-762x39mm-16-barrel
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.312 diameter to the lands?
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.312 diameter to the lands?
I Just noticed that's what it says. What's that mean?
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I'd guess some barrels are available in 7.62x39 with a standard .308 bore, some with the correct .310 bore. The x39 normally uses a .310 barrel, Aks, SKS, Mosins, Enfields and Arisakas all are .310, not .308 like Amercian, Swiss or French weapons use. I believe Ruger Mini 30s had this in there early variants, later ones had correct bore size. .002 aint much, but might add some extra pressure swagging a .310 bullet into a .308 bore. The advantage to the .308 barrels, alot more choices in reloading and rolling your own for accuracy, .310 advantage use any normal commercial ammo without worry.
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I'd guess some barrels are available in 7.62x39 with a standard .308 bore, some with the correct .310 bore. The x39 normally uses a .310 barrel, Aks, SKS, Mosins, Enfields and Arisakas all are .310, not .308 like Amercian, Swiss or French weapons use. I believe Ruger Mini 30s had this in there early variants, later ones had correct bore size. .002 aint much, but might add some extra pressure swagging a .310 bullet into a .308 bore. The advantage to the .308 barrels, alot more choices in reloading and rolling your own for accuracy, .310 advantage use any normal commercial ammo without worry.
Could be a misprint to midway has a habit of doing that at times. It gets rave reviews on there 4.6 out of 5 is pretty good so I figured it was a good deal. It's the only one I could find in stock to that wasn't 500 or more!
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Congratulations sksmcrossvilletn! From the write-up in the link you posted it seems they may not supply them with "enhanced" firing pins like Palmetto State Armory.
"Use of steel-cased 7.62x39mm ammunition in the AR-15 platform may result in occasional light primer strikes due to the small diameter firing pin and hard military-style primers."
Don't remember where but I read, during my research before buying my AR, the enhanced FP is approx .015" longer than the regular pin. That isn't much but it's enough to "bust" that hard primer every time you squeeze the trigger! The wife and I use ASC 20 round mags and never have we had a problem with them feeding.
Enjoy it sir!
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I read that to Danny, I don't do alot with ARs so any right up like this, is a learning experience. Do you use the enhanced pin? 1 thing I've wanted to know is if you switch back and forth from berdan primers to softer American boxer primers...Is there anything to watch out for?
Hey Any1....If the bore of .312 isin't a misprint..How would that effect accuracy, pressures etc?
sksmcrossvilletn, Hope it comes out well for ya. Keep us posted man, Good stuff.
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Hey Any1....If the bore of .312 isin't a misprint..How would that effect accuracy, pressures etc?
My guess it thats the groove diameter, so land diameter would be possibly .310. pressures shouldn't be a problem
Not an Ar guy, I'm a give me an Ak kinda guy, so I ain't very smart rofl
So I gotta ask....the bore and chamber aren't chrome lined, it has a phosphate finish, which I'm sure extends into the chamber. Maybe my common sense is showing, or I just don't "really" understand Ars, but dirty commie ammo, a rough phosphate finish and some ammo with the nasty case sealer, I don't see being a good mix for case extraction.
Maybe I'm over thinking it senil1 crazyp1
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I read that to Danny, I don't do alot with ARs so any right up like this, is a learning experience. Do you use the enhanced pin? 1 thing I've wanted to know is if you switch back and forth from berdan primers to softer American boxer primers...Is there anything to watch out for?
Hey Any1....If the bore of .312 isin't a misprint..How would that effect accuracy, pressures etc?
sksmcrossvilletn, Hope it comes out well for ya. Keep us posted man, Good stuff.
Hippie we use the enhanced pin because Palmetto State Armory ships all their 7.62X39mm carbines with this installed in the bolt. I don't know if other manufacturers do this also. As far as changing to the softer primer ammo I couldn't say because we have never fired anything other than Wolf & Red Army Standard.
BBush might come along and chime in on this as he has a PSA carbine (or two) in X39mm also, maybe he has fired some of the softer primer ammo you speak of. I wouldn't THINK it would make a difference but then it's a good thing that I don't get paid to think!
So I gotta ask....the bore and chamber aren't chrome lined, it has a phosphate finish, which I'm sure extends into the chamber. Maybe my common sense is showing, or I just don't "really" understand Ars, but dirty commie ammo, a rough phosphate finish and some ammo with the nasty case sealer, I don't see being a good mix for case extraction.
Maybe I'm over thinking it senil1 crazyp1
GM it hasn't been a problem with us and I haven't heard of anyone else having stuck cases so far. But to guard against that happening I have several AR bore brushes for 7.62X39 caliber that I chuck up in my trusty battery powered drill and give the chambers a good scrubbing. I starting doing this a couple of years ago to our SKS carbine chambers because of the old lacquer-looking coating on Russian ammo, I still have a couple of thousand of those rounds!
(http://i.imgur.com/v1X8nCx.jpg?1)
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Funny this thread mentions the Anderson AR because Ive been thinking of buying one of these AR's complete . Sportsman guide has them for 474.00 with 5 star reviews. Would the X39 upper in this thread work with this gun also ?
http://www.sportsmansguide.com/product/index/anderson-carbine-556-nato-semi-automatic-rifle?a=1911774
Never owned an AR but for the price and reviews on these Anderson I see no reason not to try one out :)
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Yes the X39mm upper will work on this Anderson you listed if that is what you are asking...I'm not really sure!. Slide out the two pins in the reciever swap the uppers and re-pin it, 15 seconds and you are done.
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Hey Any1....If the bore of .312 isin't a misprint..How would that effect accuracy, pressures etc?
The land diameter (bore) should be .300 (7.62mm) even though the groove diameter is .312. I would guess it would lower pressures somewhat (perhaps take a little off velocity?) when shooting commercial 7.62x39mm ammo with standard .310 diameter projectiles.
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Congratulations sksmcrossvilletn! From the write-up in the link you posted it seems they may not supply them with "enhanced" firing pins like Palmetto State Armory.
"Use of steel-cased 7.62x39mm ammunition in the AR-15 platform may result in occasional light primer strikes due to the small diameter firing pin and hard military-style primers."
Don't remember where but I read, during my research before buying my AR, the enhanced FP is approx .015" longer than the regular pin. That isn't much but it's enough to "bust" that hard primer every time you squeeze the trigger! The wife and I use ASC 20 round mags and never have we had a problem with them feeding.
Enjoy it sir!
Numerous people on the reviews on midway said they fired berdan primed steel cased ammo fine. If it doesn't work I can buy an enhanced firing pin for 13 00 no big deal. I wanted a psa upper but they don't make them anymore.
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sksmcrossvilletn I hate to hear that about the PSA P47 16" uppers. I even did a search in their site using their SKU number and it turned up nothing. Like bbush said it was probably because they are really pushing that new rifle but that still makes no sense. The PSA 47 was a good selling upper!
Anyway, I'm glad you got one, and I hope it serves you well.
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Me to.
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I read that to Danny, I don't do alot with ARs so any right up like this, is a learning experience. Do you use the enhanced pin? 1 thing I've wanted to know is if you switch back and forth from berdan primers to softer American boxer primers...Is there anything to watch out for?
Hey Any1....If the bore of .312 isin't a misprint..How would that effect accuracy, pressures etc?
sksmcrossvilletn, Hope it comes out well for ya. Keep us posted man, Good stuff.
Hippie we use the enhanced pin because Palmetto State Armory ships all their 7.62X39mm carbines with this installed in the bolt. I don't know if other manufacturers do this also. As far as changing to the softer primer ammo I couldn't say because we have never fired anything other than Wolf & Red Army Standard.
BBush might come along and chime in on this as he has a PSA carbine (or two) in X39mm also, maybe he has fired some of the softer primer ammo you speak of. I wouldn't THINK it would make a difference but then it's a good thing that I don't get paid to think!
I've only fired steel cased ammo through mine. Golden Tiger and the Bears, no issues here.
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I do have a black rifle arms enhanced firing pin on standby if needed!
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On a side note what trigger is everyone running in their x39 ar on here? I was thinking the alg defense combat with the heavier spring might be the way to go.
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Ours are the standard trigger installed by the manufacturers used by PSA, whatever that is...I have no idea. But our triggers are actually decent as is so we felt no need to alter or change them right now.
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Well the upper came in and I installed my black rifle arms enhanced firing pin. I'm thinking I should have gotten chrome lined bore as it was hard as hell to clean.
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Ours are the standard trigger installed by the manufacturers used by PSA, whatever that is...I have no idea. But our triggers are actually decent as is so we felt no need to alter or change them right now.
PSA = Palmetto State Armory
I have a Anderson lower also. I got a Daytona Tactical x39 upper "kit". Has everything but the lower and BUIS. Runs like a Singer Sewing Machine. You will love how it shoots.
Marcus
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Well the rra carry handle I won on ebay that was bnib came in and it installed on the upper perfectly and locked up tight.
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Well the rra carry handle I won on ebay that was bnib came in and it installed on the upper perfectly and locked up tight.
Good, let us know how it runs...with pictures!
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Ours are the standard trigger installed by the manufacturers used by PSA, whatever that is...I have no idea. But our triggers are actually decent as is so we felt no need to alter or change them right now.
Here is what it looks like with the carry handle installed.
(http://i1338.photobucket.com/albums/o685/dsclaiborne35/Mobile%20Uploads/20160713_154917_zpsn1soxups.jpg)
(http://i1338.photobucket.com/albums/o685/dsclaiborne35/Mobile%20Uploads/20160713_154939_zpst0d4pqkj.jpg)
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Looking better by the minute, soon it will be time to burn some powder!
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I just ordered one of these for my ar. I felt the deal was to good to pass up.
http://palmettostatearmory.com/psa-ar15-pa10-enhanced-polished-trigger.html (http://palmettostatearmory.com/psa-ar15-pa10-enhanced-polished-trigger.html)
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On a side note what buffer and tube is everyone running? I've thought about a spikes st 2 buffer. It's basically an h2 buffer.
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I just ordered one of these for my ar. I felt the deal was to good to pass up.
http://palmettostatearmory.com/psa-ar15-pa10-enhanced-polished-trigger.html (http://palmettostatearmory.com/psa-ar15-pa10-enhanced-polished-trigger.html)
Let us know how it does.
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Will do
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Update:
The following parts came in.
1. Spikes tactical t2 buffer with spring.
2. Magpul miad od green grip
3. Magpul ctr od green stock
4. Magpul moe od green carbine length hand guard
5. Toms tactical 7075 aluminum 6 position buffer tube with car buffer and spring (will use car buffer as back up in case t2 short strokes the rifle.
6. Fde hogue universal hand all that I put on the miad grip
7. Limbsaver butt pad 10025 custom fit for magpul stocks installed on ctr.
I lack two items having a rifle
Alg act trigger
Precision Armament M4-72 Severe-Duty™ Compensator
I plan on ordering the mags probably Monday or Tuesday!
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Any pics of this dude yet? :)
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Any pics of this dude yet? :)
No I've not had time to fool with it yet just waiting on parts. The only thing I've got on the lower is the mag release!
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Any pics of this dude yet? :)
Got everything installed on the lower except the trigger group and front take down pin. I'll order the trigger group and bcm gunfighter charging handle and probably the miculeck brake around Christmas. Hopefully before the new year I can get this up and running but no guarantees.
(http://i422.photobucket.com/albums/pp308/baxter7808_2008/20161120_140546.jpg)
(http://i422.photobucket.com/albums/pp308/baxter7808_2008/20161120_140609.jpg)
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For those wondering that's a c products defense gen 3 20 rounder. The fit and finish on them is second to none.
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I run a heavier hammer spring and have no problems now. Had some hard primers and the spring solved it.
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I run a heavier hammer spring and have no problems now. Had some hard primers and the spring solved it.
I'm gonna be running a milspec trigger with 6 pound hammer spring so it shouldn't be an issue!
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I have one of those Hogue grip sleeves on my USP. Those things really do make a difference on a grip.
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I have one of those Hogue grip sleeves on my USP. Those things really do make a difference on a grip.
Yup I've got em on my ar, sks sporter that's in a tapco stock, and on my mossberg 500. I'll probably put one on the iac hawk and the sks m to when I modify it. The grips are super comfortable.
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Update:
I got the alg act trigger in. I'll be using the heavy spring when I put it in. I'll update here once I get the trigger installed and the rifle together as time permits.
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Battle arms development pins are in, alg act trigger is in, and magpul moe hand guard are installed. I'm just waiting on a bcm gunfighter medium charging handle and a mickulek brake. I'm having to buy this stuff a piece at a time.
(http://uploads.tapatalk-cdn.com/20161231/77a892cdee988368ac8c5e1a6c007571.jpg)
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Looks very close to a complete rifle now :) You're certainly making it your own with all the specific parts and the earth tone color scheme thumb1
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I cerakote all my guns normally and it's because it's the most durable finish I've found as far as coloring a firearm other than black or blue. It's even tougher when done over top of parkerizing. Unfortunately this anodized receiver can't be parked but instead of them just bead blasting the anodizing and then spraying with cerakote I'm thinking of having them bead blast, then alodine, then cerakote. It's gonna be magpul fde when I'm done.
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Update:
Well I just fired 30 rounds from her with the 4.5 pound hammer spring in. I fired 5 rounds tula fmj, 5 rounds red army standard fmj, 5 rounds brown bear fmj, 5 rounds monarch fmj. 5 rounds golden tiger and five rounds tula hollow points. All rounds fired except for one golden tiger and it fired on the 2nd trigger pull. So I'm going to go with the heavier weight spring and I think that'll cure it. No issues with c products gen 3 20 rounder and no short stroking. I guess wednesday when I'm off again I'll change out the hammer spring for the heavier weight one.
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Update,
I am thinking I may have a bad standard power hammer spring as when I installed it instead of the purple spring the trigger pull went from 4.5 pounds on the Lyman electronic trigger gauge to 8.5 pounds. Alg has bad customer service thus far and has yet to give a solution and I have not heard from them in a week! I tried to call them as well and they left me on hold 20 minutes and I finally hung up! I don't have any other springs around other than the purple light weight one! So I guess I am going to get a standard power Wolff hammer spring and try it and see what happens. I guess if that doesn't lower it the only other option I will have is to install a Wolff reduced power trigger and disconnector spring!
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Okay so I contacted alg and they sent me a new trigger group. With the Wolff reduced power trigger return spring and reduced power disconnector spring with the alg regular hammer spring the pull is now a consistent and smooth 6.5 pounds. No more issues. I've since added a bcm mod 3 gunfighter charging handle and Wednesday I'll be installing a miculeck brake on it.
I've been sourcing parts for another build. I'm going to go with a 4150 nitrided hbar barrel with carbine length gas system. This current one has a 4140 hbar phosphate coated barrel with carbine length gas system.
The lower I'm going with is a spikes tactical forged lower with punisher logo. I'm going to be going with a bcm enhanced lpk on it. I'm not sure on the upper yet. If the other I'm building works as well as this one I'll give this one to my dad as a farm rifle.
(http://i1338.photobucket.com/albums/o685/dsclaiborne35/received_1374002709290180_zpsbwoknjyt.jpeg)
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Go with a side charging upper and bolt. 8)
Hell, the barrel I want to build a 6.5 creedmore on is $415. cry1
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Go with a side charging upper and bolt. 8)
Hell, the barrel I want to build a 6.5 creedmore on is $415. cry1
You mean the bear creek arsenal one?
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Pretty sure several co are making them.
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I ended up with the longer firing on my ARx39 . The as built was not reliable. Now it fires any x39 no problem. Funny how a few thousands can make such a difference!
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I ended up with the longer firing on my ARx39 . The as built was not reliable. Now it fires any x39 no problem. Funny how a few thousands can make such a difference!
Yeah this new build that I am about to build with a faxon barrel will have another black rifle arms extended firing pin.
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I actually went with this lower receiver on my new build that I am collecting parts for right now. I used my law enforcement discount and got it for about 5-7.00 cheaper with free shipping.
https://www.joeboboutfitters.com/Spike_s_Tactical_Lower_Multi_Forged_PUNISHER_Str_p/sp-stls015.htm (https://www.joeboboutfitters.com/Spike_s_Tactical_Lower_Multi_Forged_PUNISHER_Str_p/sp-stls015.htm)
I went with this upper
http://www.jsesurplus.com/YHM7.62x39mmCaliberMarkedUpperReceiversStripped.aspx (http://www.jsesurplus.com/YHM7.62x39mmCaliberMarkedUpperReceiversStripped.aspx)
I went with this parts kit
http://www.jgsales.com/bcm-ar-15-enhanced-lower-parts-kit,-fde-p-88124.html (http://www.jgsales.com/bcm-ar-15-enhanced-lower-parts-kit,-fde-p-88124.html)
I went with a faxon 4150 nitrided inside and out barrel with 1 in 8 twist button rifled with 11 degree target crown. It'll have a midlength gas system. I used my leo discount to get it cheaper.
https://www.tntesales.com/faxon-16-7-62x39-1-8-qpq-41v50-mid-length-barrel-assembly-f-marked/ (https://www.tntesales.com/faxon-16-7-62x39-1-8-qpq-41v50-mid-length-barrel-assembly-f-marked/)
This is the bolt carrier group I went with. Both the carrier group and bolt are nitrided.
https://sunnystateoutdoors.com/collections/7-62/products/aim-7-62x39-nitride-bolt-carrier-group-mpi (https://sunnystateoutdoors.com/collections/7-62/products/aim-7-62x39-nitride-bolt-carrier-group-mpi)
That is what all I have ordered so far. The lpk, upper receiver, lower, and bcg are all here.
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Now I'm thinking of going with a Midwest industries drop in free float handguard and an elftmann 4-7 pound adjustable service trigger!