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Posted: 7/27/2020 8:22:50 PM EST
What spare parts should I be stocking up on? Should I just buy some extra LPK's or should it be more specific?
Link Posted: 7/27/2020 8:29:31 PM EST
I buy extra extractor springs and O-rings if you use them.
An couple extra sets of gas rings, an "oops kit", and if you can afford it, an extra bolt carrier group.
I bought some extra extractors from on guy on the EE on here too.
Link Posted: 7/27/2020 8:37:38 PM EST
Link Posted: 7/27/2020 8:55:41 PM EST
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Your hammer and trigger springs are in the wrong place.
Link Posted: 7/27/2020 9:14:56 PM EST
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Originally Posted By ark-and-spark:

Your hammer and trigger springs are in the wrong place.
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Not anymore
Link Posted: 7/27/2020 9:29:59 PM EST
Great Scott...all I did was buy a spare complete bolt, firing pin, and gas rings.
Link Posted: 7/27/2020 10:02:01 PM EST
[Last Edit: 1/20/2021 10:24:02 PM EST by j3_]
Getting ready to change into someone more comfortable. Name changes coming.
Link Posted: 7/27/2020 10:18:48 PM EST
87 spare AR's.

You can canibalize them, and not even miss them.

Then buy 5 more to "fix" the one you canibalized.
If you can even find the one you canibalized.

But one of the new 5 will have some sort of issue, so you can just break it down for parts.

Did you follow all that.

I hope so.
Link Posted: 7/28/2020 5:42:51 AM EST
[Last Edit: 7/28/2020 8:57:35 PM EST by Tigwelder1971]
Bolts
Gas rings
Extractors/springs/pins
Cam pins/retainers
Gas keys/screws
Firing pins
LPKs
Gas tubes/roll pins
Buffers
Buffer springs
Buffer retainer pins
Receiver extensions
Charging handles
Link Posted: 7/29/2020 7:17:53 PM EST
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Originally Posted By armoredman:
Great Scott...all I did was buy a spare complete bolt, firing pin, and gas rings.
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That’s really about all you will ever need.
Link Posted: 7/29/2020 7:54:41 PM EST
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Originally Posted By armoredman:
Great Scott...all I did was buy a spare complete bolt, firing pin, and gas rings.
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Don’t forget these...

Attachment Attached File
Link Posted: 7/29/2020 10:43:54 PM EST
Only parts I have ever had fail were gas rings and a firing pin. All the other spare parts are really so that I can build guns at a moments notice if need be and not have to worry about supply and/or shipping when the mood strikes.
Link Posted: 7/31/2020 7:17:31 PM EST
Thanks for the input, got my care package from Joe Bob today. Extra firing pins, bolt rebuild kit, extra gas rings, extra extractor and spring. Plus, since I may have a couple of extra lowers, the items required to make them functional.
Link Posted: 7/31/2020 8:28:54 PM EST
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Originally Posted By bootleg15:
Thanks for the input, got my care package from Joe Bob today. Extra firing pins, bolt rebuild kit, extra gas rings, extra extractor and spring. Plus, since I may have a couple of extra lowers, the items required to make them functional.
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Rock River AR3258 rebuild kit? That's a pretty good kit, I have a few. The only other thing I'd add to your list is a cam pin or two.
Link Posted: 8/1/2020 2:06:27 AM EST
Buffer retainer wears out.
Link Posted: 8/1/2020 7:15:42 AM EST
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I wish..

Link Posted: 8/1/2020 10:53:49 AM EST
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Glad to see Im not the only one who does this
Link Posted: 8/1/2020 10:56:42 AM EST
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Originally Posted By ALock405:

I wish..

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I have 3 or 4 fire control groups in my box.
Link Posted: 8/1/2020 10:57:33 AM EST
[Last Edit: 8/1/2020 10:59:23 AM EST by K9-Bob]
Link Posted: 8/1/2020 9:12:22 PM EST
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Originally Posted By W_E_G:
87 spare AR's.

You can canibalize them, and not even miss them.

Then buy 5 more to "fix" the one you canibalized.
If you can even find the one you canibalized.

But one of the new 5 will have some sort of issue, so you can just break it down for parts.

Did you follow all that.

I hope so.
View Quote



LoLoL !!
Link Posted: 8/1/2020 10:17:56 PM EST
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Originally Posted By bootleg15:


I have 3 or 4 fire control groups in my box.
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Auto/burst variety.  
Link Posted: 8/1/2020 10:21:28 PM EST
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Originally Posted By Tigwelder1971:

Auto/burst variety.  
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Okay, not auto burst ones, although I have a drop in bought off eBay that I took out because it went full auto on me twice.
Link Posted: 8/1/2020 11:21:14 PM EST
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Originally Posted By bootleg15:



Okay, not auto burst ones, although I have a drop in bought off eBay that I took out because it went full auto on me twice.
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Originally Posted By bootleg15:
Originally Posted By Tigwelder1971:

Auto/burst variety.  



Okay, not auto burst ones, although I have a drop in bought off eBay that I took out because it went full auto on me twice.

In reference to the pic posted above.
Link Posted: 8/2/2020 3:52:34 PM EST
I owned an AR for probably the last 12 years. I shot out 1 barrel, had to replace the gas rings on one bolt, and worn out a couple of carbine buffer springs.

Also, whenever I replace a stock, I tend to have the retainer spring bend or something really crazy happen.

For myself, I keep buffer springs around, the retainer pin springs, and gas keys. I have a lot of spare bolt carriers but never had worn that out yet.
Link Posted: 8/15/2020 6:03:45 PM EST
FWIW, around Black Friday some place usually has a massive sale and someone usually posts about it here on arf. I've scored LPKs (sans trigger) and complete LPKs at significant discount. I started with 2 LPKs ~5 yrs ago, and then I realized what a deal it is so the last ~3yrs I've been buying lots of 10 .

Also, I started a thread a cpl years back and asked where to buy small parts in bulk - some guy gave a great link ... then I learned that arf archives threads I'll try to find the thread.
Link Posted: 8/15/2020 6:56:24 PM EST
Link Posted: 8/17/2020 9:49:00 AM EST
@bootleg15

I also found this page and while I lack firsthand experience with all these parts, their lowers are legit.
Link Posted: 8/17/2020 9:40:17 PM EST
Originally Posted By bootleg15:
What spare parts should I be stocking up on? Should I just buy some extra LPK's or should it be more specific?
View Quote

Whatever you expect to break?
Link Posted: 8/18/2020 8:35:11 AM EST
Yeah just have 15 spare AR's...thats what I did.
Link Posted: 8/19/2020 8:12:45 AM EST
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@LiveFree482

Very nice setup!

BTW, can you tell what plastic small parts case you are using in the pics above?  I want to get one just like it.
Link Posted: 8/19/2020 8:22:44 AM EST
If you aren’t using 13-gallon tote bins for your spare parts, you are doing it wrong.
Link Posted: 8/19/2020 3:32:38 PM EST
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Originally Posted By Yojimbo:


@LiveFree482

Very nice setup!

BTW, can you tell what plastic small parts case you are using in the pics above?  I want to get one just like it.
View Quote
@Yojimbo thanks and here is a link for you...

Plano 3950 Satchel Box
Link Posted: 8/19/2020 5:48:43 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By LiveFree482:
@Yojimbo thanks and here is a link for you...

Plano 3950 Satchel Box
View Quote



Thanks!
Link Posted: 8/27/2020 1:18:59 PM EST
Link Posted: 8/27/2020 1:20:12 PM EST
Link Posted: 8/27/2020 1:21:55 PM EST
Link Posted: 8/29/2020 3:35:43 PM EST
OP there is a lot of great recommendations already made here so.............for bolt carrier groups I use Colt and BCM.  For lower receiver guts I like Spikes tactical.  FWIW I have no connection to the aforementioned companies I merely use some of their kit.  I hope this helps.
Link Posted: 10/20/2020 2:33:50 PM EST
I keep several of everything, including complete BCGs, a few charging handles, complete individual spare bolts, dozens of sets of gas rings,  individual extractors, all the springs, detents, all lengths of gas tubes, all the various pins, a few different buffers and a few new complete semi FCGs and a few complete LPKs for new builds and a bag full of safety selectors from changing out all my guns to ambi ones, sight parts, dust covers, cam pins, firing pins, etc.
Every receiver I buy, I also add to the spare parts inventory to keep it going in the future......whether I use them or not, they are here.
Link Posted: 10/23/2020 11:23:52 AM EST
[Last Edit: 10/23/2020 11:26:34 AM EST by lysanderxiii]
Pin, Firing
Pin, Firing Pin Retaining
Carrier and Key Assy
Bolt
Ring, Bolt (3x)
Extractor
Pin, Extractor
Spring, Helical, Extractor
Ejector
Pin, Ejector
Spring, Helical, Ejector and Safety Detent
Handle, Charging Assy
Receiver, Upper
Cover, Ejection Port
Spring, Helical, Ejection Port
Pin, Grooved, Headless
Clip, "C"
Spring, Helical, Forward Assist
Forward Assist Assy
Pin, Spring, Forward Assist
Barrel and Barrel Extension w/ Front Sight Base Assy
Nut, Barrel
Spring, Slip Ring, Handguard
Cap, Handguard
Gas Tube and Plug
Pin, Spring, Gas Tube
Swivel, Sling
Rivet
Handguard Set
Post, Front Sight
Detent, Front Sight
Spring, Helical, Front Sight
Suppressor, Flash
Lockwasher/Compression Washer/Shims
Detent, Takedown and Pivot (2x)
Spring Helical, Takedown and Pivot (2x)
Pin, Takedown
Pin, Pivot
Guard, Trigger Assy
Pin, Spring, Trigger Guard
Trigger
Spring, Torsion, Trigger
Spring Helical, Disconnect
Pin, Grooved, Headless, Trigger and Hammer (2x)
Hammer Assy
Spring, Torsion, Hammer
Catch, Bolt
Spring, Helical Bolt Catch Plunger
Plunger, Bolt Catch
Pin, Spring, Bolt Catch
Extention, Receiver
Buffer Assy
Detent, Buffer
Spring, Helical, Buffer Detent
Spring, Helical, Action
Lever, Selector
Detent, Safety
Grip, Pistol
Screw, Grip
Washer, Lock
Button, Magazine Catch
Spring, Helical, Magazine Catch
Catch, Magazine
Buttstock Assy
Magazine (7x)

I suggest attaching them all to a spare lower, so they don't get lost or misplaced.  And, maybe some form of optical sight and/or rear BIUS.
Link Posted: 11/27/2020 6:42:10 PM EST
In general, when would some of the parts in a Bolt Carrier Group and Lower start to wear out?
Link Posted: 11/28/2020 4:29:51 PM EST
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Originally Posted By CMV1979:
In general, when would some of the parts in a Bolt Carrier Group and Lower start to wear out?
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It's usage based - so 1 shot per month will yield years but 1k rounds per weekend will yield considerably less
Link Posted: 11/28/2020 6:42:47 PM EST
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Originally Posted By CMV1979:
In general, when would some of the parts in a Bolt Carrier Group and Lower start to wear out?
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HIGH ROUND COUNT M4s

This should give you an idea.
Link Posted: 12/12/2020 10:47:34 PM EST
My spare parts heap always seem to magically  assemble themselves into another firearm!
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