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Kel-Tec P-3AT

• moderate
• Shop tier 2
• high confidence
• Pistol
• pocket pistol
• blowback
• double action only
• concealed carry
• requires tools

field strip ~3 min · reassembly ~4 min · detail strip ~20 min

Specifications

Model-specific safety

• Kel-Tec's instruction is explicit: do not dry fire the P-3AT.
• Keep pressure on the grip around the assembly pin as you pull it, or the assembly pin spring will dislodge.
• Once the slide is off, the ejector (part #115) falls out easily. Kel-Tec calls this out as a caution. Work over a tray and account for it before you move anything.
• Do not rotate the firing pin screw. It is factory adjusted.
• This pistol has no slide hold-open. The slide cannot be locked back to inspect the chamber — pull it briskly and look.
• Double-action-only with a long trigger and no manual safety. Holster discipline matters accordingly.
• Pocket lint accumulation is the leading cause of malfunctions in this class.

Under spring tension

• Recoil spring assembly
• Hammer spring

Easily lost parts

Ejector (part #115) — falls out as soon as the slide is off · Assembly pin · Assembly pin spring · Recoil springs

Tools

Shop difficulty

Shop tier 2 Tier 2 — moderate among pistols, for the full job: strip to the parts that get coated and put it back together working. About 34 real parts (36 rows include the hard case and manual), but the hammer spring has to be hooked and let down with a scribe before the polymer frame pins come out, and the hammer block must be pushed forward at the moment the aluminium frame seats in the grip. The ejector and assembly-pin spring fall out at the field strip.

Parts: 36 numbered parts (P-3AT 'Pistol Parts List', complete pistol and magazine; includes 400 HARD CASE and 410 MANUAL(FREE), so 34 gun parts. FRAME PINS is one row for several pins.), from Kel-Tec P-3AT Owner's Manual — Kel-Tec CNC Industries, Inc., p. 16 5159794.fs1.hubspotusercontent-na1.net [1].

Bench time: about 20 min to strip, 30 min to rebuild (estimate). Slide (firing pin screw left alone per Kel-Tec, extractor) and frame out of the grip (hammer spring let down, polymer frame pins, hammer, trigger, hammer block); rebuild longer for the hammer-block timing and hammer spring hook-up.

Small parts: 9 pins, 10 springs, 0 detents or plungers (counted from the manufacturer's parts list (one per key number unless a quantity is given))

What comes off for coating

• Slide: extractor, pin and spring, firing pin and spring (firing pin screw is factory-set) — pin punch
• Frame/grip: assembly pin and spring, ejector, hammer spring (let down), polymer frame pins, aluminium frame insert, hammer and hammer axis, hammer block and spring, trigger, trigger bar and spring, magazine catch — pointed L-shaped scribe

Special tools

• narrow pointed L-shaped scribe — Hooking and letting down the hammer spring

Known pain points

• The hammer spring has to be caught with a pointed L-shaped tool, turned 90 degrees and let down into the magazine well before the frame comes out of the grip. (both)
  Source: Hammer Spring Replacement for P3AT/P32 (Kel-Tec's instructions, reposted) — Kel-Tec P-3AT blog (instructions credited to Kel-Tec) keltec-p3at.blogspot.com [2] — “Carefully grab the hammer spring by inserting a narrow, pointed L-shaped tool, like a scribe, between the hammer spring and hammer spring catch pin.”
• When the aluminium frame goes back into the polymer grip, the hammer block must be pushed forward of the hammer just before the frame is flush. (reassembly)
  Source: Hammer Spring Replacement for P3AT/P32 (Kel-Tec's instructions, reposted) — Kel-Tec P-3AT blog (instructions credited to Kel-Tec) keltec-p3at.blogspot.com [2] — “Note: When reinstalling the aluminum frame into the grip, make certain the hammer block is pushed forward of the hammer just before the frame is flush in the grip.”
• The ejector is loose once the slide is off and falls out. (disassembly)
  Source: Kel-Tec P-3AT Owner's Manual — Kel-Tec CNC Industries, Inc. 5159794.fs1.hubspotusercontent-na1.net [1] — “CAUTION: Once the slide is removed, the Ejector (part #115) will easily fall out.”
• The assembly pin spring dislodges if the grip is not held while the pin comes out, and the pin has to go back in at an angle to push it down. (both)
  Source: Kel-Tec P-3AT Owner's Manual — Kel-Tec CNC Industries, Inc. 5159794.fs1.hubspotusercontent-na1.net [1] — “Insert the assembly pin at a slight angle in order to push the assembly pin spring down,and then push the pin completely in.”

See also 4 documented reassembly problems and their fixes.

Fit or check on rebuild

• Hammer block position as the frame seats — The hammer block must be ahead of the hammer or the frame will not seat/the gun will not fire
  Source: Hammer Spring Replacement for P3AT/P32 (Kel-Tec's instructions, reposted) — Kel-Tec P-3AT blog (instructions credited to Kel-Tec) keltec-p3at.blogspot.com [2] — “make certain the hammer block is pushed forward of the hammer just before the frame is flush in the grip.”
• Firing pin screw untouched — Kel-Tec says it is factory adjusted
  Source: Kel-Tec P-3AT Owner's Manual — Kel-Tec CNC Industries, Inc. 5159794.fs1.hubspotusercontent-na1.net [1] — “Do not rotate the firing pin screw, it is factory adjusted.”
• Function check: trigger reset, sear/striker engagement, safeties — Standard post-reassembly check on any pistol whose fire-control parts were removed; a mis-seated spring shows up here, not on the bench

This is Pew-Takedown's rating, not the manufacturer's. How tiers are rated. Forum reports are owners' experience, not specifications.

Procedures

Torque specifications

No sourced torque values from the manufacturer are recorded for this firearm. Where a fastener has a specified torque — action screws, scope bases, muzzle devices, barrel nuts — get it from the manufacturer or a gunsmith rather than estimating it.

What the manufacturer does say: The manufacturer's documents give no torque value. They say: "No further disassembly is recommended. Do not rotate the firing pin screw, it is factory adjusted." (Kel-Tec P-3AT Owner's Manual, p. 13)

Materials and factory finish

As stated by Kel-Tec CNC Industries. Prep, masking and cure depend on these; a polymer or aluminium part, a nitrided or anodised finish, and a blued steel part are each a different job. Variants with other finishes may exist — check the maker's page for the exact SKU on the bench.

Parts list

Transcribed from the manufacturer's parts list (Kel-Tec P-3AT Owner's Manual — Kel-Tec CNC Industries, Inc., p. 16 5159794.fs1.hubspotusercontent-na1.net [1]) — P-3AT 'Pistol Parts List (See illustration on centerfold)', p.16. The centerfold drawing (PDF p.9, dated 03-31-05) prints its own slightly different key list; not transcribed, differences in problems.. Key numbers refer to the exploded view in that document.

Function check

• Verify the pistol is unloaded with no magazine inserted before each check.
• Rack the slide and confirm it returns fully into battery.
• Press the trigger through its full double-action stroke and confirm the hammer falls.
• Confirm the takedown pin is fully seated.
• Cycle dummy rounds by hand to confirm feeding before carrying.

Maintenance

Lubrication points

• Frame rails
• Barrel exterior
• Hammer pivot

Cleaning notes

Clean out pocket lint thoroughly. Keep lubrication light — these pistols are carried far more than they are shot, and oil that sits collects debris.

Suggested inspection interval: roughly every 1000 rounds. This is a general guideline, not a manufacturer specification.

Wear parts to inspect

Recoil spring assembly (a known replacement interval item) · Extractor · Magazine spring

Common issues

Also covers

The procedures above are reported to apply to: Kel-Tec P-32. Verify against the manual for your specific model.

Similar manual of arms

• Ruger LCP II

Sourcing