AR -15 Spares- What parts do you recommend?

[hip55]

I had a firing pin retaining pin fail (found it broken when I was cleaning it) so I had to order a replacement pin. While I was there i also ordered some other bolt parts that might fail or get lost during a feild cleaning.

So here are 2 diagrams and parts lists of the upper and lower assemblies-
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The Upper parts breakdown



Upper Parts List

# 23 - Charging handle latch roll pin

# 24 - Charging handle latch

# 25 - Charging handle latch spring

# 26 - Charging handle

# 27 - Firing pin

# 28 - Bolt carrier key screw, each (2 required)

# 29 - Bolt carrier key

# 30 - Firing pin retaining pin

# 31 - Cam pin

# 32 - Bolt carrier, Semi-auto

# 33 - Bolt gas ring, improved, each (3 required)

# 34 - Bolt

# 35 - Extractor spring

# 36 - Extractor spring insert

# 37 - Extractor

# 38 - Extractor pin

# 39 - Ejector roll pin

# 40 - Ejector spring

# 41 - Ejector

# 42 - Forward Assist Assembly

# 43 - Pawl spring pin

# 44 - Pawl spring

# 45 - Pawl detent

# 46 - Forward assist pawl

# 47 - Forward assist spring

# 48 - Ejection port cover

# 49 - Ejection port cover spring

# 50 - Ejection port cover pin

# 51 - Pin retaining ring

# 52 - Upper Reciever

# 53 - Rear sight elevation spring pin

# 54 - Forward assist spring pin

# 55 - Rear sight elevation spring

# 56 - Rear sight elevation knob

# 57 - Rear sight elevation index

# 58 - Index screw

# 59 - Rear sight assembly

# 60 - Ball bearing

# 61 - Elevation index spring

# 62 - Rear sight windage knob

# 63 - Rear sight windage knob pin

# 64 - Rear sight index spring

# 65 - Rear sight ball bearing

# 66 - Rear sight flat spring

# 67 - Rear sight aperture

# 68 - Rear sight ball bearing

# 69 - Rear sight helical spring

# 70 - Rear sight base

# 71 - Rear sight windage screw

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The lower parts breakdown



Lower Parts List

# 72 - Action spring

# 73 - Buttcap spacer

# 74 - Buttstock,

# 75 - Buttplate

# 76 - Buttplate screw

# 77 - Trap Door Assembly, plastic

# 78 - Rear swivel screw

# 79 - Trap door hinge pin

# 80 - Trap door hinge

# 81 - Rear sling swivel

# 82 - Pistol grip screw

# 83 - Lock washer

# 84 - Pistol Grip

# 85 - Safety detent spring

# 86 - Safety detent

# 87 - Hammer and trigger pin (2 required)

# 88 - Magazine release button

# 89 - Magazine catch spring

# 90 - Trigger guard pivot roll pin

# 91 - Trigger guard

# 92 - Trigger spring

# 93 - Trigger, standard

# 94 - Disconnector

# 95 - Disconnector spring

# 96 - Pivot pin

# 97 - Pivot pin spring

# 98 - Pivot pin detent

# 99 - Magazine Catch

# 100 - Bolt catch spring

# 101 - Bolt catch plunger

# 102 - Bolt catch roll pin

# 103 - Bolt catch

# 104 - Safety selector lever

# 105 - Hammer spring

# 106 - Hammer with J pin, standard

# 107 - Buffer assembly

# 108 - Buffer retainer

# 109 - Buffer retainer spring

# 110 - Takedown pin spring

# 111 - Takedown pin detent

# 112 - Takedown pin

# 113 - Receiver extension

What parts would you recommend keeping on hand as spares?

[Hoser]

I would keep a spare bolt/carrier assembly around.

[gnihcraes]

I was going to post a thread similar to this... I need some spare parts but don't really know where to start. I figured a lower parts kit would be about the best thing initially to have correct?

firing pin and such...

[StagLefty]

I keep a small parts kit in my range bag-firing pin,springs,extractor etc. It seems that if anything is going to go wrong it's in the BCG.

[Troublco]

DPMS makes a parts kit with a good selection of what you would usually need, they call it their "Ultimate Repair Kit", and MidwayUSA has them for $34.99, P/N 587468. It has most of the items needed most. I've seen this kit other places, but Midway is quite a bit cheaper than anywhere else I've seen them.
A lower kit is good, too. My kit contains a lower kit, one of these ultimate repair kits, an upper kit, a pin and spring kit, and a few more of anything else I thought I might need.

[coop68]

i too carry a parts kit, i bought mine at camp perry from armerlite i think it was 20 bucks or so cant remmber but it came with, firing pin, extractor, springs pins small parts in a nice plastic box ect....

here is an idea of what i have in my kit. this is just basic for me as these are the parts that break or wear out over time i will probley add more once i have money to fund buying more.

27 30 31 33 34 35 36 37 38 39 40 41 66 85 86 97 98

[Colorado Osprey]

I've had a DPMS (blister card) Field Repair kit that has most small parts from the ejector, extrator, detents, firing pin, almost all the springs etc. I've had it for about 20 years. Never even opened it. I keep it in a fishing tackle box that holds all my gun cleaning supplies.

I was reading recently that there are a lot of people who keep a spare bolt or bolt/carrier.
My feeling has always been that I have a complete spare uppers. No need for an I can always steal parts if I need any until I can get the parts I need to replace any that have broke. BTW.... over 50,000 combined rounds from a couple AR rifles and I have never had any part failure. Am I just lucky? Maybe. I understand that it is commonly believed that the bolt is only supposed to last 10,00 rounds.

[sniper7]

i recommend at least a spare rifle if not two!!! as for parts a bolt trigger and hammer spings extractor firing pin are all great to have extras of. i have one of those dpms kits somehere... i was thinking about ordering a bunch of spare parts. if you guys are interested let me know and maybe we can make it one order and then meet up or ship it cheap.

[gnihcraes]

FYI - Bowerstactical said yesterday that he will be building some spare parts kits to sell... hopefully he'll let us know when they are available.

[hip55]

very cool -