AK Cleaning, Lubrication & Wear Guide

Bore, chamber, gas piston, gas tube, bolt, extractor, carrier rails, recoil spring, corrosion, lubrication, normal wear, bad wear, and knowing when “it's an AK” stops being a maintenance plan.

Cleaning   |   Lubrication   |   Carbon   |   Corrosion   |   Wear   |   Inspection

The AK will tolerate neglect better than a lot of firearms. That does not make neglect good maintenance.

Carbon builds on the piston and inside the gas system. Fouling collects around the bolt face and extractor. Rails polish against the carrier. Springs cycle. Metal gets exposed to sweat, humidity, rain, dust, ammunition residue and whatever lives on the floor of your truck.

None of that means the rifle needs to look laboratory-clean after every range session.

The goal is simpler: remove the fouling that interferes with function or promotes corrosion, lubricate the surfaces that actually rub, inspect the parts that actually wear, and learn the difference between normal mating marks and damage.

Clean the dirt. Lubricate the friction. Inspect the metal. Stop worshipping carbon like it's part of the design.

Routine maintenance is built around the normal field-stripped rifle.

Removing the dust cover, recoil-spring assembly, bolt carrier, bolt and gas tube exposes nearly every area that collects the fouling we care about during routine service.

You do not need to knock pins out of the rifle every time you shoot it. Routine cleaning and detailed repair are different levels of maintenance.

The bore gets the obvious attention, but the chamber matters just as much for function.

Powder residue and other fouling in the chamber can contribute to poor chambering or extraction. Clean the chamber and bore using firearm-safe solvent and caliber-appropriate tools without damaging the chamber or rifling.

PSA's current AK manual specifically directs owners to clean the chamber, wipe it afterward, and leave the chamber dry rather than oiled. It allows a light protective oil film in the bore after cleaning for corrosion protection.

The AK gas system sees heat and carbon by design.

Wipe the piston and remove carbon accumulation. Clean loose fouling from the gas tube and inspect it for damage or unusual deformation.

This is not the place to pour oil until it runs out the front of the rifle.

Zastava's current guidance specifically favors keeping the gas system clean and mostly dry. Heavy lubrication in a hot, dirty area gives carbon, dust and grit something sticky to live in.

The bolt deserves more than a quick wipe because it contains several parts directly tied to ignition, locking and extraction.

• Bolt face: clean carbon and inspect for unusual pitting or damage.
• Firing-pin opening: inspect for cracking or abnormal elongation.
• Firing pin: inspect for obvious bending, cracking or damaged tip.
• Extractor claw: remove fouling around and beneath the claw and inspect the edge.
• Extractor spring: inspect for damage and useful tension.
• Locking lugs: clean and inspect the high-load surfaces closely.

Pay particular attention to the areas where the bolt locking lugs meet the bolt body. Military inspection guidance specifically calls for checking these areas for cracking. A polished contact surface is one thing. A crack in a locking component is another.

The carrier is one of the largest moving parts in the rifle, and its contact surfaces tell you a lot.

Clean the carrier rails, cam-track area and other obvious bearing surfaces. Then inspect them rather than automatically trying to remove every shiny spot.

A smooth, consistent polished contact pattern where two parts repeatedly mate can be normal. Zastava's current wear guidance specifically treats even polishing on rails, bolt lugs and carrier contact areas as a normal sign of surfaces mating together.

What deserves attention is deep galling, displaced metal, sharp raised burrs, cracking, deformation, binding or a wear pattern that is rapidly becoming worse.

The recoil spring is easy to ignore because it usually just sits there doing its job.

Until it doesn't.

Inspect the assembly for bent, broken, collapsed or twisted coils, damaged guide components, obvious corrosion or abnormal deformation.

A light film on contact/guide areas is plenty. The spring assembly does not need to arrive at the range looking like it was pulled from a deep fryer.

The receiver interior collects loose carbon, grit and debris even though it is not the dirtiest part of the rifle.

Brush or wipe away loose contamination and inspect springs and engagement parts for obvious damage, bends, cracks or abnormal wear.

Zastava recommends only a tiny amount of lubricant on selected hammer/trigger engagement surfaces. Filling the bottom of the receiver with oil does not make the trigger happier. It makes a dirt collection system.

You want lubricant where metal moves against metal.

You do not need pools of oil in the receiver, gas tube or chamber. Excess lubricant migrates, carries fouling, attracts dust and can end up where it was never useful in the first place.

Lubricants change behavior with temperature.

Zastava's manual specifically warns that below 0°C / 32°F, conventional lubrication oil should be avoided in favor of a suitable dry lubricant applied sparingly.

The broader lesson is more useful than memorizing one product: your lubrication plan has to match the environment.

Surplus ammunition can introduce corrosive primer residues that deserve prompt attention.

If you know or reasonably suspect the ammunition is corrosive-primed, clean the affected areas sooner rather than treating the rifle like it just fired ordinary modern ammunition.

Zastava's current post-range guidance recommends using water to dissolve and remove corrosive salts from the bore and gas-system areas before completing the normal cleaning, drying and protective-lubrication process.

Long-term storage is less about dumping preservative on the rifle and more about controlling moisture.

Clean exposed metal, leave appropriate protective film on corrosion-prone surfaces, keep the rifle dry, and periodically inspect firearms that spend long periods sitting in safes, cases, vehicles or humid environments.

Soft cases can trap moisture. Vehicle interiors see major temperature swings. Sweat attacks finishes. Wood reacts to moisture and excessive dryness differently from polymer.

A rifle can survive thousands of rounds and still lose a fight with six months of humidity and zero inspection.

Zastava currently uses checkpoints around 500, 2,000 and 5,000 rounds in its own wear guidance because they provide convenient opportunities to compare how parts are changing over time.

That does not mean a part magically becomes bad at one of those numbers.

Ammunition, heat, firing schedule, suppressor use, maintenance, rifle tolerances and the exact component all matter.

Round count gives the inspection context. The actual condition of the part tells you whether there is a problem.

Do not treat a replacement AK bolt like replacing a magazine spring.

U.S. military technical guidance specifically warns against interchanging bolts between AK rifles without verifying proper headspace. The bolt is part of the locking system. If it needs replacement, compatibility and headspace matter.

1. Confirm the rifle is unloaded before maintenance begins.
2. Field strip it and look before cleaning everything away. Fouling patterns, unusual debris and abnormal wear can tell you something.
3. Inspect the chamber and bore.
4. Inspect the piston and gas tube.
5. Inspect the bolt face, firing-pin opening, extractor and locking lugs.
6. Inspect carrier rails, cam surfaces and receiver rails.
7. Inspect the ejector and magazine catch area.
8. Inspect the recoil spring and guide assembly.
9. Clean and apply lubricant according to the surface and environment.
10. Reassemble and perform the manufacturer's normal function check.
11. Track anything unusual. Round count, ammunition, new marks, malfunctions or changing wear patterns.

There is no magic round count that applies to every AK and every use case.

A normal range rifle firing modern non-corrosive ammunition does not need an obsessive white-glove teardown after every short session.

But there are situations where maintenance should move up the schedule:

• After firing corrosive-primed ammunition.
• After exposure to rain, mud, salt, blowing dust or other contamination.
• Before extended storage.
• When function begins changing.
• After unusually heavy firing schedules.
• When inspection shows carbon, fouling or corrosion building where it actually matters.

AK maintenance does not need to become a ceremony.

Keep the bore and chamber clean. Keep carbon from becoming concrete in the gas system. Keep the extractor and bolt face clean enough to inspect. Put a light film where steel slides, rotates and locks against steel. Keep excess oil out of places where it mostly collects dirt.

More importantly, learn what your rifle normally looks like.

A rifle that gets inspected regularly gives you a baseline. Once you have a baseline, changing wear stands out before it has the chance to become a surprise.

• Zastava Arms USA — ZPAP M70 Owner's Manual
  Factory cleaning, lubrication, bore-obstruction and cold-weather guidance.
• Zastava Arms USA — Cleaning a ZPAP After a Range Day
  Bore, chamber, piston, gas tube, extractor, carrier rails and normal lubrication routine.
• Zastava Arms USA — ZPAP Lubrication Guide
  Friction zones, grit zones, gas-system lubrication and cold-weather notes.
• Zastava Arms USA — ZPAP Wear Points
  Rails, bolt lugs, extractor, carrier and high-wear inspection areas.
• Zastava Arms USA — Practical Inspection Routine
• Palmetto State Armory — Current AK Owner's Manual
  Chamber, bore, cleaning-solvent and maintenance guidance.
• U.S. Marine Corps — AK-47 Organizational Maintenance Manual
  Bolt, extractor, carrier, receiver, ejector, spring and structural inspection criteria.
• U.S. Marine Corps TM 8370-50007-IN/2
  Technical maintenance, wear inspection and headspace warnings.

Research reviewed October 1, 2026. Exact maintenance requirements vary by manufacturer, finish, barrel treatment, climate and ammunition. Use the current manual for the specific rifle as the factory baseline.

IRONKELLS ARMORY | AK FORGE FILES

Rugged Doesn't Mean Maintenance-Free.

Keep the friction surfaces slick, the dirty zones clean, the bore protected, and your eyes on the parts that actually carry the load.