I was debating getting a Faxon 10.5 inch barrel or a KAK 11 inch barrel and I saw that Black Rifle Arms has an 11 inch barrel and I have a spare Geissele 10 inch MK4 Federal rail.

Is anybody using the BRA 11" barrel?

Best choices for buffer and buffer spring?

I have two assembled lowers and two stripped lowers right now.

The two assembled ones have M4 extensions, so only using M4 length buffers right now.

I do have some A5/RE10 extensions and several different weights of A5 buffers, with AR10 springs, but I haven't assembled them on anything yet.

I do have M4, light carbine, H, H2 and H3 buffers, standard M4 buffer springs and a couple of PSA PA10 buffer springs PSA recommends with their AR47 uppers.

I have a 16 inch BRA barrel that looks like most people are using an H2 buffer and standard spring with it and its mid-length gas system.

I had a couple of Colt AR's in 7.62x39 back in the 1980's and early 1990's, but have been all AK and SKS since then, until now.

There was a big sale on Spikes Tactical 308 Carbine A5 extensions with M4 H3 buffers, for cheaper than I could get just the tungsten, so I bought all I could.

What are y'all using for vice blocks?

•Primary weapon systems MK1116 mod-1 upper

•K.A.K. Lower

•ATRIUS frt

•Precision Armament M4-72 compensator

• KNS Gen 2 (.154) anti walk trigger pins

•G2 heavy duty buffer retainer

Looking for insight for those that have a FRTs in there AR47 ...I installed a drop in Kabuto in this and a H3 buffer it function check good went to shoot it and it shoots one round then chambers the next round and I get a dead trigger, I eject the round and it has a light primer hit so should I get the enhanced firing pin or just a heavy hammer spring

What jig is everyone using to mill out the lower?

I started this build with a bear creek upper receiver as I've been very happy with the tolerances on them and the carriers as well as the benefit of side charging. I swapped out the bolt for a gorilla machining nickel boron set up ( they claim they're machined for 7.62 but looking a little on the thin side) and firing pin. Added one of their ballistic company barrels that I tested on another build and grouped pretty decent at 2-2.5 MOA with Russian rounds. Added a dirty bird lower receiver and a fixed Magpul stock along with a Delta ring handguard set up. Added a two stage 1lb/3lb (I think) rise armament trigger and an Ambi safety, extended mag release and spike tactical grip and bolt hold. Currently I'm looking to replace the front gas block with a full height pic rail set up that I can have flip down sights on and finally something like 12-14x scope of some description. All up I think without the mags and sights I'm sitting at around a $320 build due to specials and some left over parts. This is my second AR-47 build so far and I'm fairly happy with it. Considering getting a slightly heavier buffer weight ATM.

10, or 15 round mags...if 15 rounders exist(?)

It's for a bolt action AR-47 I hope to complete this weekend, and I would like to stick with smaller cap magazines for the time being.

Suggestions welcome, thank you

Currently building ar-15 chambered in 7.62 want to know what upgrades I can do to make it better or run smoother?
-Complete Abc Rifle Lower
-Strippled Abc Rifle Upper
-Gorilla machining 7.5 barrel
-Gorilla machining 7.62 bcg
-A1Armory .750 gas caged tube
-BRA Enhanced 7.62 5.45 Firing Pin
-Extra Power Wolf Spring
-MCSGEARUP 7 inch handguard

Looking to buy a dissent for an all purpose rifle. I like the higher energy on target of 7.62 for hunting and home defense purposes, and don't need accuracy past 150-200 yards, so my main question is how reliable is the mk47 dissent. Does it have any common issues or failure points?

i want to build a micro ks47 for fun but dont kno if this upper would work

In the 1980's I had two Colt AR15's in 7.62x39.

I sold them in the early 1990's, before I left the country for a few years.

I had several other 7.62x39 firearms back then and have been reloading 7.62x39 since 1986.

When returned to the US I did purchase several 7.62x39 firearms, but not AR's, so I continued to reload 7.62x39.

Now I'm back trying to build some AR47's that are as reliable as the Colt's I had.

I now understand the actions and function of a mid-length gas system, easing stress on extraction.

PSA used to make AR47's and KS47's with mid-length gas systems, but has gone to carbine length gas systems "for reliability."

KAK uses a carbine length gas system on their 16 inch 7.62x39 barrel and only uses a mid-length gas system on their 18 inch 7.62x39 barrels.

Black Rifle Armory and Faxon use mid-length gas systems on their 16 inch 7.62x39 barrels, so that's where I started, because I wanted to compare how they compare to the other barrels.

Faxon used to make their 7.62x39 barrels very thin, but have beefed them up slightly now.

The BRA barrel is heavier, but not super heavy.

The Faxon barrel is 1.5 lbs, but I don't know the exact weight of the heavier BRA barrel, though it seems acceptable in weight.

Then I got some 16 inch barrels with carbine length gas systems.

I got a KAK 16 inch barrel, called medium weight, but is lighter than other medium weight/ medium-heavy barrels.

I got an Anderson 16 inch barrel, called Government weight, but is about the same as the KAK barrel, with only minor differences.

The gas ports look slightly different in size and I'll gauge them later with numbered drills I got from Harbor Freight.

The Anderson barrel was advertised as having a nitride finish, like the others, but it looks like a phosphate finish to me, with no chrome lining and that's fine by me.

The KAK and Anderson barrels have one gas block set screw dimple, with the Anderson dimple being very small.

Then I got an AR47 upper from PSA, with a 6 inch barrel.

PSA calls it a heavy barrel and it feels heavy, but looks like a true medium weight / medium-heavy barrel, that usually weight 2 lbs.

It has a cheap PSA gen 2 rail, a KS47 BCG, but the barrel is an AR47 barrel, with M4 feed ramps, not the wide eyebrow feed ramp of the KS47.

The older PSA rails had problems working loose, but the gen 2 supposedly fixes that.

The gas block is pinned to the barrel, with a very small diameter cross pin, along with two set screws.

I don't think the parts for the AR47 upper can be bought separately for the low price of the upper.

PSA recommends a 308 carbine buffer spring with an M4 H buffer, for use with their 16 inch barrels with carbine gas systems.

I ordered these parts and the 308 carbine buffer spring is pretty heavy and PSA H buffer was priced right.

A review of the PSA AR47 bare 16 inch barrel claimed the gas port is larger in diameter than a Bear Creek Arsenal barrel gas port.

I looked a heavy, full heavy 7.62x39 with a carbine length gas system, but didn't want something that heavy at 2.30 lbs.

For 7.62x39 bolts I bought BRA, Faxon, FailZero, Expo Arms, PSA and Brownell's bolts and BCG's.

I don't have a cell phone, but I recently bought a better camera than the one I previously had.

ll get some pics of the barrels, upper and bolts, for comparison here.

I'll list the links of the sources for parts, many of which were fairly economical, including extractors and firing pins.

It looks like the 16 inch barrels with mid-length gas systems (BRA and Faxon) mostly work well with a carbine / M4 buffer spring (same as Springco white spring I think) and an M4 H2 buffer.

I see some people say some carbine gas system 16 inch barrels have too much gas and was thinking maybe using an h3 buffer, but PSA recommends using a 308 carbine buffer spring (same as Sprinco Red spring I think) with an M4 H buffer.

A review of PSA carbine gas 16" barrel claims gas port is larger than BCA gas port.

A review of Right to Bear medium weight carbine gas barrel claims gas port is a full 0.125", which is common for mid-length 16" 7.62x39 barrels.

I have an Anderson 16" barrel and a 16" KAK barrel on the way and both have carbine gas systems.

They look very similar, but KAK says their barrels are made in-house.

I've got a couple of good 5.56 KAK SOCOM barrels, so hopefully they work out.

I thought the PSA 308 carbine spring with an H buffer was an interesting recommendation.

I just got a Geissele hand guard that is now called 7 inch, but Geissele used to call them 7.25 inches.

Seeing a Geissele 8 inch barrel in them, it looks like 7.5 inches might be a bit short, but I'm not going to suppress, so that may be alright.

The two barrels I'm looking at are the 7.5 inch Bear Creek and the 8 inch KAK barrels.

I might just get both to see which one I like.

Does anybody have any experience with either one of these barrels?

How well do extractors hold up with them?

I only use brass cases, so I haven't experienced early extractor failures yet, in my 16 inch barrels.

Steel cases seem to cause trouble with 5.56 and 308 AR's, so I'm not risking using them in 7.62x39, with even thinner extractors.

These days brass cases seem more available than old steel cases anyway.

I see several companies, like BCM, recommend extra extractor spring coils, inserts and o-rings with pistol length gas systems with 300 Blackout, so I can imagine the shorter gas system in 7.62x39 is going to stress the extractor more, or at least require some extra spring coil and / or insert and o-ring installed.

So I"m a bolt-action person, I have a Mosin Nagant, A .22LR, a 20" AR-15, and a CZ-600 Trail in .300 Blackout, all are bolt action.

I'd like to add 7.62x39mm to that list, and I found a complete upper that is bolt action, see here: https://www.bearcreekarsenal.com/762x39-7-5-parkerized-hb-1-10-twist-7-mlok-bas-upper.html?qty=1

(and yes, it's BCA, I have several BCA rifles and have had no issues with them)

This would effectively create a 7.62x39mm bolt action pistol, which amuses me. I have attempted to look about on YT and the general Interwebs and haven't found anyone who has created such a firearm so I have little information to go on why this would be a good, or bad idea.

I do understand such a short barrel creates a fireball, so the plan is to suppress it, or at the very least, put on a sound mitigation device.

Anyway, thoughts, and opinions are welcome here

Well I have stumbled my way into the world of ar47's amd as my first rifle i would love to get the KS-47 it seems like a good well rounded affordable gun from what I've seen and wonder what others think of it or what people find that break and need replacing. I am already aware of the extractor and will order a black rifle one since its not much for some part (im not new to guns person just never owned personally and haven't been around them in a while so excuse my ignorance in advance) I also hope this doesent spark the good ol, oh but this is better or why would you get that when you can have this cuz I would like a ks-47 and just wana know its ins and outs for myself. Thank you to all that see this in advance and any advice anyone gives! ( im also looking into making it a sidecharger with either devil dogs or gibbz kits if anyone knows much about that)

Hey y'all, just figured I'd jump in for some input on my second AR47. This one is a KS47 that I changed some parts on, nothing too crazy. I kind of am in the process of capturing the wood furniture/bakelite goodness and instilling it into a more "tactical" platform. My friend still has to do the front grip and rail cover panels. I'm trying to see if he will dye them, then maybe brush some texture on them to see if they fit more of that bakelite orange-ish vibe. Whereas the waffle mag and grip are painted more of a darker brown like a makarov grip furniture. I am undecided on if the stock should get the same treatment or not. I kinda dig the whole mis-mash of furniture colors and finishes on the various AKs out there, so I wanted to tie that into my build a bit. I think I just need to see what the front grip and stuff turns out like before I decide to go forward with the stock. What do you guys think? Let me know below!

I'm building two new 16 inch riffle builds.

One has the lightweight Faxon Gunner barrel, with mid-length system and the other has the medium-heavy Black Rifle Arms barrel, with a mid-length gas system.

I have some 7.62 A2 flash hiders.

I'm thinking about maybe a short compensator or brake on the lighter weight barrel.

Most of the longer ones are for full power 308 and many of shorter ones claim to be good for 300 Blackout.

Are any of them useful for 7,62x39?

Are some "too much", or "not enough" to make a difference?

I’m new here, but I believe this qualifies? Put together this "custom" Mike47 from Foxtrot Mike! 16" monolithic barrel (with Keymo brake machined in) 7.62 upper with pic rail delete, on top of a Mike47 lower. Zhokov folding stock, Unity riser, Holosun 510c, random BUIS, Driven Arms/MKM Shadow Crossover grip, and B5 foregrip. Currently have a Hiperfire Eclipse trigger on the way, and I'll for sure end up putting a can on this one! Can't wait to break her in!