At this moment I own one M&P 9F, one M&P 9C, a Glock 19 3rd Gen and a Rock Island GI 1911 Mil Spec . Regularly I shoot around 100 rounds a week with each gun except the 1911. Having a bad feeling about the upcoming elections results (another 4 years of liberal government) decided to buy all the internal parts of every gun I have just in case.
Talking about the M&Ps already bought:
2 Striker Assays
2 stock Trigger springs
2 Housing Blocks
2 Recoil Springs (one short for the compact and one large for the Full)
2 Trigger bars
2 Apex DCAEK spring kits
2 Take down levers with two retaining wires
2 Slide Stop assay
2 Extractors with springs and pins
2 Ejectors
2 Locking Blocks
2 Trigger pins
4 Locking Block/Housing Block pins
2 Slide End caps
2 Frame Key plugs
Having installed Apex USB on both guns I have the stock ones
Having installed Truglo TFO on both I have the stock sights too.
Increased my stock ammo from 2000 to 4000 rounds
Already have 10 magazines (5 each)
Still I’m not decided to buy the barrels because I think those can stand 4 years
Do you guys think I got crazy or having some backup parts is a good idea now days?

Sounds like a lot of trouble and expense to me, plus storing all that stuff where it won't get lost. I just keep a couple of extra guns on hand as backup.

My oldest M&Ps are going on 6 years old, nothing has ever gone wrong with any of them, if it does S&W will back me up. I did break a take down tool (my fault) some years ago...called S&W Customer Service and had a new one 2 days later...for FREE!

I bought my oldest rifle in 1972, a Remington Nylon 66, and it's still going strong with all its original parts.

I'd rather spend my money on ammo or a new gun............

Nothing wrong with having spare parts. But i doubt parts are going to be banned (the reason everyone is jumping on black rifle and hicap mags). At most i would keep 1 set of each. Maybe more of the cheaper stuff or stuff more likely to break.

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I agree with having spare parts but I don't think it's going to be a political issue.

Also, most of the parts I have I've had for several years without using them. Example: I got my M&P 9c at the end of '08 and my first auto. At the time people were talking about strikers breaking so I bought the new striker assembly from C&S when they became available. I've detail stripped that slide every 1K rounds (over 12K rounds at this point) and have never had to put the new striker in.

Good news is I have a replacement when I need it. Bad news is someone will probably pick it up at a garage sale once I'm dead.

Dave

Thanx for the replies. I want you to kow that the whole cost of all those parts do not exeed a total of $120.00 for two pistols (which is the cost of just 500 rounds). I know as you said some of them would never break but having them all in hand is a great relief. I should trust more in S&W.....I think.

There are some wear parts that you expect to/should change periodically. The recoil spring at about 7500 rounds/5 years. The magazine catch (didn't see that in your pile of parts), trigger return spring, slide stop and striker spring/striker (didn't see that either) at around 15,000 rounds/5 years. Now, those are suggested service intervals. You may get more rounds per part, but since many are low cost, it's not a bad investment.

The frame blocks? Ah.....it's your money and the roll pins can be picked up at most hardware stores or from Brownells. Looking at the extractor, I'm not betting anyone is gonna wear that out.

Agree with you that the blocks should last forever but S&W does not sale the sears, plungers and plunger springs separate therefore is better and economical to buy the whole block (Apex and SS have sears but they cost more than the whole stock S&W sear house block with all parts inside). I forgot to put the striker spring which I bought just one but as I said before I bought two whole strikers assays. What I forgot and thank you for remind me is the mag catch. Ordering right now.