Springs are consumables. They wear per shot fired, not per year owned - here are the common-practice replacement intervals, the symptoms that override them, and the one rule above all of it: your manufacturer’s manual wins.
The short answer
Springs and wear parts fail by rounds fired, not years owned. Common practice: replace full-size pistol recoil springs every 3,000 - 5,000 rounds (2,000 - 3,000 for compacts), inspect extractors and AR gas rings around 5,000, and replace magazine springs on symptoms, not a count. Any malfunction - sluggish return, changed ejection, light strikes - overrides the schedule. The manufacturer’s manual wins.
Every shot compresses the recoil spring at violent speed, slams the extractor over a rim, and cycles the striker. That energy is what wears parts - a safe queen’s springs are essentially new at ten years old, while a competition gun can shoot its recoil spring soft in a single season. So replacement schedules are written in rounds, and they only work if you actually know your count.
One caveat before the table: these are common-practice ranges shooters use when the manufacturer is silent. Several makers publish exact intervals for their guns - if yours does, that number overrides everything below.
By part: full-size recoil springs every 3,000 - 5,000 rounds, compact recoil springs every 2,000 - 3,000, magazine and striker springs on symptoms, and AR gas rings, extractor springs, and O-rings checked around every 5,000. Barrels are not a schedule item for most guns. The full table, with notes, is below.
| Part | Common practice | Notes |
|---|---|---|
| Recoil spring (full-size pistol) | Every 3,000 - 5,000 rounds | The classic consumable. A tired recoil spring lets the slide batter the frame and shows up as sluggish return to battery. Many manufacturers publish an interval for their guns - that number wins. |
| Recoil spring (compact / subcompact) | Every 2,000 - 3,000 rounds | Shorter slides run stiffer springs through a more violent cycle, so they wear faster. Compacts are the guns most likely to have a manufacturer-specified interval - check the manual first. |
| Magazine springs | No fixed count - replace on symptoms | Springs wear from cycling more than from sitting compressed. Nose-dive feeds, failures to lock the slide back, or a mag that loads too easily are the tells. Springs are cheap; suspect mags get new springs or get retired. |
| Striker / firing-pin spring | Per the manual; immediately on light strikes | Light primer strikes on ammo that fires in another gun mean the spring (or a gunked striker channel) is done. Some striker-fired manufacturers list an interval - treat it as a hard number on a defensive gun. |
| Extractor & extractor spring (pistol) | Inspect around 5,000; replace on symptoms | Erratic ejection - brass to the face, weak dribbles, changing directions - is usually extractor tension going away. Inspection is free; a chipped hook or dead spring is a replace-now item. |
| AR-15 gas rings | Check every ~5,000 rounds | The classic check: stand the bolt on its face in the carrier - if the carrier slides down under its own weight, ring tension is marginal. Rings cost a few dollars; many shooters just replace them with every deep clean past 5,000. |
| AR-15 extractor spring & O-ring | Every ~5,000 rounds | The most common cause of AR extraction failures. Cheap enough that common practice is replacing the spring, insert, and O-ring as a set whenever the bolt comes fully apart. |
| AR-15 action / buffer spring | Every 5,000 - 10,000 rounds, or below spec length | Buffer springs have a published in-spec length in most manuals - measuring beats guessing. A short spring shows up as sluggish cycling and bolt-over-base malfunctions. |
| Barrel | Not a schedule item for most guns | Pistol and rimfire barrels commonly outlast tens of thousands of rounds. The exception is high-velocity precision rifles, where throat erosion can end match accuracy in a few thousand - precision shooters track barrel round count religiously. |
Common-practice ranges reported by shooters and armorers - not manufacturer guidance. If your owner’s manual or the parts maker specifies an interval, the manual overrides this table every time.
Five symptoms mean a part needs attention now, whatever the count says: sluggish return to battery, a changed ejection pattern, light primer strikes, feeding failures that follow one magazine, and sharper felt recoil. Round counts are the plan; the gun always gets a vote.
The slide creeps home or needs a nudge to close on a round. That’s recoil spring fatigue (or a filthy gun - clean first, then judge). On a carry gun this symptom means the spring gets replaced today, not at the next milestone.
A gun that used to throw brass consistently and now dribbles it, rings your head, or switches directions is telling you about extractor tension or recoil spring health. Pattern change matters more than any absolute distance.
Shallow dents on primers that fire fine elsewhere point at the striker or hammer spring - or fouling in the striker channel. Either way it’s a stop-shooting-and-fix item, because the next click might come when it matters.
Nose-dives and failures to feed that travel with a specific mag are a magazine spring or follower problem, not a gun problem. Number your magazines - it’s the only way this pattern becomes visible.
When a familiar gun starts feeling snappier, the recoil spring may no longer be soaking up slide energy. Shooters usually notice this one late - which is exactly why the round-count schedule exists.
The same spring gets two different policies. On a range gun, running to the far end of the interval - or even to first symptoms - costs you a frustrating range day. On a carry gun, common practice is to replace at the early end of the interval and to treat any symptom as disqualifying until fixed. Springs cost a few dollars; that’s cheap insurance on a gun whose one job is to work.
Parts replacement also pairs naturally with cleaning - the recoil spring gets judged every time the gun is apart anyway. Our cleaning schedule by round count covers that half of the maintenance picture.
“Replace at 3,000 rounds” is useless if your honest answer to rounds on this spring is a shrug. The fix is the same one that powers a cleaning schedule: log every session - firearm, date, rounds - and note the count whenever you swap a part. Rounds-on-part is simple subtraction from there. A range log spreadsheet does it; so does a notebook, if you’re disciplined.
Shots Fired automates it: per-firearm round counts that update as you log sessions, a maintenance history for parts swaps, and reminders when a firearm crosses the interval you set - the manual’s number or your own. And because a parts log is also a list of your guns, everything stays on your phone: no account, no cloud, no server. That’s the architecture our Privacy Manifesto is about.
Common practice is every 3,000 - 5,000 rounds for full-size pistols and every 2,000 - 3,000 for compacts and subcompacts. If the manufacturer publishes an interval for your model, use that number instead - several major makers do, and the manual is the authority.
Mostly no. Springs wear from load-unload cycles far more than from static compression, which is why common practice is to replace magazine springs on symptoms - nose-dive feeds, weak slide lock - rather than on a calendar or round count.
Function tells you: sluggish slide return, changed ejection, light strikes, or feed failures. For AR buffer springs you can do better - most manuals publish an in-spec free length, so a tape measure gives a yes/no answer.
For a defensive gun, factory-weight springs from the manufacturer (or their OEM supplier) keep the gun running the way it was engineered and tested. Competition shooters experiment with spring weights, but they also accept tuning malfunctions as part of the game.
No - the intervals above are driven by live-fire recoil energy, which dry practice doesn’t produce. Striker and hammer springs do accumulate dry-fire cycles, but manufacturers that allow dry fire account for it. Track live rounds for the schedule; see our dry fire guide for the practice side.
Log every range session per firearm and note the count when you replace a part - rounds-on-part is just current count minus count-at-install. A round-count app does the arithmetic for you: Shots Fired keeps a per-firearm running total and maintenance history, all stored on your phone.
Free to start - per-firearm round counts and maintenance reminders. No account. No cloud.
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