What to Check When Buying a Used Gun: The Inspection Checklist

A used firearm is one of the best values in the shooting world—if it's sound. The difference between a smart buy and a costly mistake is knowing what to inspect. This checklist works whether you're examining a gun in person or judging it from listing photos online.

Print it, screenshot it, or bring it up on your phone at the counter.

Before You Touch Anything: Safety First

Always treat every firearm as loaded. Before inspecting, point it in a safe direction, open the action, and visually and physically confirm the chamber and magazine are empty. Keep your finger off the trigger. Inspecting a used gun is no exception to the rules.

The Universal Checklist (Any Firearm)

Bore and Rifling

The bore tells you how the gun was cared for. Hold it to the light and look down a verified-empty barrel:

• Bright, sharp lands and grooves = good.
• Pitting, heavy rust, or a dark "frosted" bore = walk away (or expect to discount heavily). Pitting hurts accuracy and won't clean out.

Crown (Muzzle)

The crown is the last thing the bullet touches. Check for dings, nicks, or uneven wear—damage here directly degrades accuracy.

Action and Function

Cycle the action repeatedly (safely, no ammo):

• It should operate smoothly, without grinding, sticking, or excessive looseness.
• On semi-autos, check that the slide/bolt locks back and returns properly.
• Test all controls: safety, slide stop, magazine release, decocker.

Safety Devices

Confirm every safety mechanism fully engages and disengages. A safety that doesn't work is a deal-breaker, not a negotiating point.

Frame, Receiver, and Finish

• Look for cracks, peening, or bulges—structural damage is a hard no.
• Even holster wear and finish loss are normal and are why used guns cost less.
• Be cautious of a sloppy refinish, which can hide problems and lowers collector value.

Serial Number and Markings

The serial number should be clear and unaltered. A ground, defaced, or mismatched serial is illegal to possess and an immediate walk-away.

Type-Specific Checks

Handguns (Semi-Auto)

• Inspect the extractor and breech face for chips or excessive wear.
• Check barrel lockup—excessive play can affect accuracy and reliability.
• Look at feed ramp condition.

Revolvers

• Check cylinder timing and lockup: the cylinder should lock up tight when the hammer is cocked, with minimal play.
• Look for a consistent barrel/cylinder gap and no end-shake.
• Cycle through every chamber.

Rifles and Shotguns

• Inspect the bore and chamber for pitting and obstruction.
• Check wood-to-metal fit and the stock for cracks, especially at the wrist and recoil lug.
• On shotguns, confirm chokes are present and not seized.

Quick Reference: Good vs. Red Flag

Check	Good	Red flag
Bore	Bright, sharp rifling	Pitting, rust, dark bore
Crown	Even, undamaged	Dings or uneven wear
Action	Smooth, locks up	Grinding, sticking, excessive play
Safeties	Fully functional	Won't engage/disengage
Frame	No cracks	Cracks, peening, bulges
Serial	Clear, original	Ground, altered, mismatched
Finish	Even holster wear	Rust, sloppy refinish

Don't Forget the Homework

• Research the model. Look up known weaknesses and whether your specific model had any recalls—you can often check by serial number with the manufacturer.
• Ask what's included. Original box, manual, and extra magazines add value; their absence isn't a dealbreaker but is worth a discount.
• Know the price. Compare against new MSRP and live used-market pricing so you know what condition-adjusted value looks like.

Buying Online? Make the Photos Do the Inspecting

You can run almost this entire checklist from good photos. For an online used gun:

• Demand clear photos of the bore, crown, breech face, serial, and all wear points.
• If a listing won't provide them, treat that as a red flag and move on.
• Lean on platforms with honest condition descriptions and seller ratings. On BallisticBid you can browse used listings with detailed photos and seller history, then complete the transfer through a licensed FFL dealer.

Frequently Asked Questions

Is a little wear on a used gun a problem? No. Holster wear and finish loss are cosmetic and normal. Focus on the bore, action, and safeties—the things that affect function.

What's the single biggest red flag on a used gun? A pitted or rusted bore, or any cracked/altered frame and serial number. Those affect safety, accuracy, or legality.

Can I inspect a used gun if I'm buying online? Yes—use the photos. Insist on clear shots of the bore, crown, and wear points, and buy from sellers with honest descriptions and good ratings.

Should I avoid refinished guns? Not necessarily, but a refinish can hide problems and lowers collector value. Inspect extra carefully and price accordingly.

Related Guides

• How to Buy a Used Gun Online — the full buying process, start to finish
• New vs. Used Guns: Which Should You Buy? — is used the right call for you?
• How Much Is My Gun Worth? — so you don't overpay
• The Best Places to Buy Guns Online — where to shop safely

The Takeaway

Used guns are where the value is—when you know how to look. Run this checklist every time and you'll buy with confidence. When you're ready, browse used listings on BallisticBid and put it to use.

This article is general information and not gunsmithing or legal advice. If you're unsure about a firearm's safety or condition, have it inspected by a qualified gunsmith.