What extra parts for my rifle?

[glowdotGlock]

I have a pretty decent stash of .223. I am looking for another AR since I sold my RRA Lar15 Operator last year. I have my mind set on the RRA Car A4 with the quad rail. It is 16" Chrome Moly 1:9 barrel. I am not a huge prepper but I do like to stock up when I can. I believe in redundancy and the saying "2 is 1 and 1 is none." With that being said, I don't have the funds for two rifles at the moment but do want to buy common replacement parts for the one. I want all the parts I would ever need to replace on the rifle to ensure I can run thousands and thousands of rounds through it, bolt, springs, pins etc. If the SHTF there won't be any ordering from the internet. What are the most common and not so common parts I would need to start buying? Sorry if this has been discused before but I couldn't find it using tapatalk.

[Oh Shoot]

Just grab a lower parts kit, spare complete bolt carrier group (or at least just spare complete bolt), and two spare sets of bolt parts , you oughtta be good for the apocalypse.

 

- OS

[scoutfsu]

Spare bolt

Firing pin retainer

cam pin

gas rings

gas key

 

LPK, with or without a trigger

 

maybe an extra FH

couple of crush washers

 

buffer springs

buffers

[glowdotGlock]

I am getting the rifle next week and gonna spend a few dollars on some Magpul furniture and then gonna put back the spare parts. Edited February 16, 2014 by glowdotGlock

[Dolomite_supafly]

And no one has mentioned either one of the two things that fail more than anything else.

 

Disconnect and the extractor spring. Heat kills the extractor spring, that is why most manufacturers add the o-ring. That way if it becomes weak or fails the o-ring should be enough to keep the gun going. Disconnects wear or even break. I have one with the hook bent up so much it would release the hammer before the trigger has a chance to capture it. I seen another which broke off and several more that wore enough they would not capture the hammer.

 

An extra bolt is not bad to have because lugs do break off. The gun will still fire with missing lugs but not for long.

[Oh Shoot]

And no one has mentioned either one of the two things that fail more than anything else.

 

Disconnect and the extractor spring. ,,,

 

Well, now,  those are included in what I suggested. :)

 

- OS

[Static_USMC]

Firing pin or 2
A couple firing pin retainers
Extra extractor and spring
Couple buffer retainers and springs
Gas rings
Extra bolt

Maybe a cam in case you lose it

[gregintenn]

 

What are the most common and not so common parts I would need to start buying?

Magazines?

[dcloudy777]

Good advice here.  The bolt and bolt parts are the most important.  You'd be amazed at how much of the LPK the AR will run without, in an emergency.

[Jonnin]

I would just get a second rifle. 

[Caster]

Extra parts have the uncanny ability of becoming second complete rifles.

[gregintenn]

Extra parts have the uncanny ability of becoming second complete rifles.

....or misplaced.

 

Where did I put that?