Beginner build parts list

[mesablu]

Hello Gentlemen,

I am in the process building my first rifle and need some advice. Since there is a chance Biden might win and ban all online sale of guns/ gun parts so it is probably a good idea that I build my rifle now. I have sourced the following parts from various venders and would like to be sure that all the components are paired correctly, I have not sourced an sights for this. Not only that I would like to know what parts I might be missing or unnecessary, again first timer here. My desired build is for an 308 chambered mid range rifle, so I hope that I am on the right forum.

 

	link
Forward Assist Assembly	https://www.ar15part.com/308-AR10-Forward-Assist-Assembly-Kit-p/faa308.htm
Ejection Port Dust Cover	https://www.primaryarms.com/aero-precision-ar-308-ejection-port-cover-kit-aprh100107
Charging Handle	https://www.primaryarms.com/aero-precision-ar-308-charging-handle-aprh100125
Gas Block	https://www.primaryarms.com/aero-precision-low-profile-gas-block-750-set-screw
Barrel (w/ out extension)	https://www.primaryarms.com/ballistic-advantage-ar-10-308-16-mid-length-barrel-5-8x24-babl308003m
barrel guard	https://www.cheaperthandirt.com/guntec-ar-15-freefloat-handguard-15-m-lok-aluminum-black-gt-15mlk/FC-714569645946.html
Safety Selector Lever	https://www.primaryarms.com/expo-arms-ar-15-ambi-safety-selector
Safety Spring & Detent	https://www.midwayusa.com/product/1003339888
Trigger & spring	https://www.primaryarms.com/cmc-ar-15-ar-10-drop-in-duty-single-stage-4.5lb-curved-trigger-mil-spec-.154in
Hammer & spring	https://www.midwayusa.com/product/1003326576
Disconnector & spring	https://www.midwayusa.com/product/1003337737
Bolt Catch (roll pin incompatible)	https://www.primaryarms.com/aero-precision-ar-308-bolt-catch-aprh100134
Bolt Catch Spring & Plunger	https://www.primaryarms.com/ds-arms-bolt-catch-plunger-zm48634
Magazine Release Button	https://www.primaryarms.com/odin-works-xmr-extended-magazine-release-black
Pistol Grip, Screw & Washer	https://www.primaryarms.com/hogue-ar-15-m-16-overmolded-pistol-grip-with-cargo-management-black-ho15010
Takedown Spring and Detent	https://www.midwayusa.com/product/1003335390
Bolt carrier group	https://www.cheaperthandirt.com/aero-precision-3087.62-bcg-with-forward-assist-phosphate/FC-815421020144.html
Castle Nut	https://www.primaryarms.com/anderson-manufacturing-mil-spec-carbine-castle-nut-am-26
Stripped lower receiver	https://www.primaryarms.com/aero-precision-m5-gen-ii-308-stripped-lower-receiver-dpms-cut-apar308003?quantity=1
Stock	https://www.primaryarms.com/magpul-acs-l-carbine-stock-mil-spec-black-mag378-blk
pivot pin	https://www.primaryarms.com/aero-precision-m5-308-pivot-pin

 

I would appreciate any input or critique to the proposed part list.

[billymagg]

16 minutes ago, mesablu said:

Hello Gentlemen,

I am in the process building my first rifle and need some advice. Since there is a chance Biden might win and ban all online sale of guns/ gun parts so it is probably a good idea that I build my rifle now. I have sourced the following parts from various venders and would like to be sure that all the components are paired correctly, I have not sourced an sights for this. Not only that I would like to know what parts I might be missing or unnecessary, again first timer here. My desired build is for an 308 chambered mid range rifle, so I hope that I am on the right forum.

 

	link
Forward Assist Assembly	https://www.ar15part.com/308-AR10-Forward-Assist-Assembly-Kit-p/faa308.htm
Ejection Port Dust Cover	https://www.primaryarms.com/aero-precision-ar-308-ejection-port-cover-kit-aprh100107
Charging Handle	https://www.primaryarms.com/aero-precision-ar-308-charging-handle-aprh100125
Gas Block	https://www.primaryarms.com/aero-precision-low-profile-gas-block-750-set-screw
Barrel (w/ out extension)	https://www.primaryarms.com/ballistic-advantage-ar-10-308-16-mid-length-barrel-5-8x24-babl308003m
barrel guard	https://www.cheaperthandirt.com/guntec-ar-15-freefloat-handguard-15-m-lok-aluminum-black-gt-15mlk/FC-714569645946.html
Safety Selector Lever	https://www.primaryarms.com/expo-arms-ar-15-ambi-safety-selector
Safety Spring & Detent	https://www.midwayusa.com/product/1003339888
Trigger & spring	https://www.primaryarms.com/cmc-ar-15-ar-10-drop-in-duty-single-stage-4.5lb-curved-trigger-mil-spec-.154in
Hammer & spring	https://www.midwayusa.com/product/1003326576
Disconnector & spring	https://www.midwayusa.com/product/1003337737
Bolt Catch (roll pin incompatible)	https://www.primaryarms.com/aero-precision-ar-308-bolt-catch-aprh100134
Bolt Catch Spring & Plunger	https://www.primaryarms.com/ds-arms-bolt-catch-plunger-zm48634
Magazine Release Button	https://www.primaryarms.com/odin-works-xmr-extended-magazine-release-black
Pistol Grip, Screw & Washer	https://www.primaryarms.com/hogue-ar-15-m-16-overmolded-pistol-grip-with-cargo-management-black-ho15010
Takedown Spring and Detent	https://www.midwayusa.com/product/1003335390
Bolt carrier group	https://www.cheaperthandirt.com/aero-precision-3087.62-bcg-with-forward-assist-phosphate/FC-815421020144.html
Castle Nut	https://www.primaryarms.com/anderson-manufacturing-mil-spec-carbine-castle-nut-am-26
Stripped lower receiver	https://www.primaryarms.com/aero-precision-m5-gen-ii-308-stripped-lower-receiver-dpms-cut-apar308003?quantity=1
Stock	https://www.primaryarms.com/magpul-acs-l-carbine-stock-mil-spec-black-mag378-blk
pivot pin	https://www.primaryarms.com/aero-precision-m5-308-pivot-pin

 

I would appreciate any input or critique to the proposed part list.

Your Aero Precision BCG is out of stock at "Cheaper Than Dirt" , I didn't check the rest, but looks like you're on the right track... actually its showing in stock in Clearance AR-10 goodies, so your are in luck...

Edited November 8, 2020 by billymagg

[Karo]

I didn't see your upper receiver listed.

 

[Armed Eye Doc]

You have a drop in trigger in your list.  You do not need the hammer spring or disconnector spring.  I would actually recommend the larue MBT2S trigger.  It is less expensive and a great trigger.  I have several and love them.  

Your handguard will not work..  it is for an AR15 which is not interchangeable with a 308AR.

Also, please let us know more about yourself in the intro section.  That is also applicable to @Karo as well

Edited November 8, 2020 by Armed Eye Doc

[dpete]

Welcome Mesablu!   With no Mil-Spec in the 308AR world you need components that will play nice together.  You have an Aero Precision lower listed.  Put that together with an Aero upper and BCG.  You will have the 3 biggest working components of the rifle all from the same source.  They will play nice.  As was mentioned by Doc,  the handguard you chose won't work, it needs to be designed for a 308AR.  Again, an Aero handguard will mate with an Aero upper without problem.  While you are at it,  buy an Aero lower parts kit to go with them.  You have most of the parts listed as individual items, is that because a complete Aero LPK isn't in stock anywhere?   See where I'm going with this?  All parts from same source and they WILL work together.  With the current panic buying climate I know finding parts is a nightmare, but getting all the working parts from the same source will save you from after its built nightmares.  The kind of nightmares all of the "my rifle doesn't work right" posts come from. 

When I first joined here I was in the process of building my 308AR.  I had read a lot of the horror stories of rifles not working.  I already had an Aero upper/lower/BCG/lower parts kit on the way.  I put it together, took it to the range, and from the first shot it functioned.  No headaches or horror.  Just bang. 

[sagebrush]

you will also need a receiver extension kit. armalite receiver extension kit number AR10REKIT01 will work very well. 75.00 from armalite, not sure if available. it includes tube, endplate, lockring, buffer, 1095 spring. this will work with your magpul stock

[mesablu]

1 hour ago, Karo said:

I didn't see your upper receiver listed.

 

Thank you Karo, I made another list and the upper didn't get transferred.

Stripped upper receiver

114.74

https://www.primaryarms.com/aero-precision-m5-308-stripped-upper-receiver-apar308503?quantity=1&keywords=apar308503

 

1 hour ago, Armed Eye Doc said:

You have a drop in trigger in your list.  You do not need the hammer spring or disconnector spring.  I would actually recommend the larue MBT2S trigger.  It is less expensive and a great trigger.  I have several and love them.  

Your handguard will not work..  it is for an AR15 which is not interchangeable with a 308AR.

Also, please let us know more about yourself in the intro section.  That is also applicable to @Karo as well

Thank you for that trigger suggestion. That will make a great replacement.

 

37 minutes ago, dpete said:

Welcome Mesablu!   With no Mil-Spec in the 308AR world you need components that will play nice together.  You have an Aero Precision lower listed.  Put that together with an Aero upper and BCG.  You will have the 3 biggest working components of the rifle all from the same source.  They will play nice.  As was mentioned by Doc,  the handguard you chose won't work, it needs to be designed for a 308AR.  Again, an Aero handguard will mate with an Aero upper without problem.  While you are at it,  buy an Aero lower parts kit to go with them.  You have most of the parts listed as individual items, is that because a complete Aero LPK isn't in stock anywhere?   See where I'm going with this?  All parts from same source and they WILL work together.  With the current panic buying climate I know finding parts is a nightmare, but getting all the working parts from the same source will save you from after its built nightmares.  The kind of nightmares all of the "my rifle doesn't work right" posts come from. 

When I first joined here I was in the process of building my 308AR.  I had read a lot of the horror stories of rifles not working.  I already had an Aero upper/lower/BCG/lower parts kit on the way.  I put it together, took it to the range, and from the first shot it functioned.  No headaches or horror.  Just bang. 

Ugh! I cannot find an aero handguard anywhere. Would the below lower parts kit suffice? 

https://www.aeroprecisionusa.com/m5-308-lower-parts-kit-minus-fcg

 

 

 

[sagebrush]

2 minutes ago, mesablu said:

Thank you Karo, I made another list and the upper didn't get transferred.

Stripped upper receiver

114.74

https://www.primaryarms.com/aero-precision-m5-308-stripped-upper-receiver-apar308503?quantity=1&keywords=apar308503

 

Thank you for that trigger suggestion. That will make a great replacement.

 

Ugh! I cannot find an aero handguard anywhere. Would the below lower parts kit suffice? 

https://www.aeroprecisionusa.com/m5-308-lower-parts-kit-minus-fcg

 

 

 

this will work with the mbt2s trigger

[sagebrush]

granite ridge has a 12" quad rail available, might look see if that is something you would use

[mesablu]

11 minutes ago, sagebrush said:

granite ridge has a 12" quad rail available, might look see if that is something you would use

You referring to this one?

https://www.graniteridgeoutfitters.com/Aero-Precision-M5-308-Enhanced-Quad-Rail-Handguard-Gen-2-APPG308224.htm

 

[sagebrush]

yes

[sagebrush]

i am not sure a 12" guard will cover mid length gas block

[sagebrush]

if you get the quad rail you will need to get nut also for standard m5 upper. box you have to check to get nut with guard. @mesablu

Edited November 8, 2020 by sagebrush

[mesablu]

Thank you Gentlemen for all your advice. I have ordered based on all your suggestions and would have been done by now but the Aero barrel nut that came with my handguard came packed with a AR15 barrel nut and not the M5 barrel nut that it was suppose to. That should arrive tomorrow and once assembled sometime this weekend I plan on posting photos.

 

In the meantime my hunt for .308 ammo has been rough. I have only managed to acquire 80 rounds of TulAmmo (which I do not plan to shoot anytime soon being steel) and 40 rounds of Hornady Black which I would prefer not to use as target ammo initially. Because of the panic and ammo shortage I have entertained the idea of reloading. What are your thoughts on reloading,? I too have been informed that materials for loading is in short supply as well but from it doesn't appear as scarce as ammo. Poking around the below link seems like a viable solution to beginning reloading. 

https://www.midwayusa.com/product/1022385415

[392heminut]

Looks like most of their reloading kits are out of stock too! I would recommend this setup;

https://www.midwayusa.com/product/1013020237?pid=785993

The turret press lets you set up all your dies for one caliber on a turret and leave them set up. Changing and adjusting dies for each stage gets old really fast if you do much reloading, especially if you plan on reloading for more than one caliber. The turrets are interchangeable on the Lee presses and you can buy a turret for each caliber and leave the dies set up on the turret. I've used a lot of Lee stuff and never had a problem with any of it. I would recommend getting a hand priming tool though, the priming setups on most presses can be a pain and very slow. Something like this;

https://www.midwayusa.com/product/1012924740?pid=319794

[shooterrex]

https://www.theamericanmarksman.com/762-NATO-308_c_307.html

This is decent ammo. I have shot a lot of it.

[mesablu]

Hello All, 

I am about 2 months late in posting this but I have finished my build. Thank you all for your suggestions and steering me clear of what would have created some headaches in this process.

I have since gone to the range twice, mainly to zero my scope, but both times have experienced multiple misfeeding issues on about the 2nd or 3rd shot (each time I am only loading 5 rounds at a time). The first time at the range I was shooting cheap Tulammo and figured that might have played a roll in the misfeed and failure to eject the emptied casing causing a jam feeding the next round.

This last weekend I fired 20 rounds of 7.62x51mm L2A2 ball ammo (which was gifted to me by a friend and is probably older than I am) and 10 rounds of Winchester 7.62x51mm M80. With both the L2A2 and M80 ammo I experienced a jam and a misfeed. What would you guys consider my issue to be? I believe I can rule out the quality of ammo I am running. Does this sound like a gassing issue and sound like I should try out an adjustable gas block? I am currently using a AP low profile non-adjustable one. 

[Armed Eye Doc]

How much lube did you use?  These large frame ARs like a lot of lube during break in.

Also, did you use more than one mag?  More than one brand?

[mesablu]

I did use ALOT of lube and I currently have 2 20rd promags. 

[Armed Eye Doc]

I would try a different brand of mag, Magpul if available.  

[mesablu]

My mistake, I am using Gen M3 MagPul.

[Armed Eye Doc]

I would still try a different brand of mag if possible.

[edgecrusher]

Pic of your extractor and recoil system details please. We can’t read minds. We can guess but it really not worth our time to

[98Z5V]

4 hours ago, mesablu said:

 I believe I can rule out the quality of ammo I am running.

 

The only way I'd be able to rule out the quality of the ammo that you are using, is if you told me that you've only used Hornady factory-loaded Match ammo to break this gun in. 

Surplus ammo can degrade over time.  Some surplus ammo can turn to absolute shiit. 

Don't blame the ammo - until you use modern, NEW .308 Win ammo that's recently purchased somewhere... 

[mesablu]

On 2/7/2021 at 7:36 PM, edgecrusher said:

Pic of your extractor and recoil system details please. We can’t read minds. We can guess but it really not worth our time to

Here are some images of my extractor.

Here is the buffer kit I bought and specs Buffer Length: 2.5" Buffer Weight: 3.8 oz.

https://www.aeroprecisionusa.com/m5-308-carbine-buffer-kit-1