← Heckler & Koch P30 reference page · This work order as JSON · Print

Work order — Heckler & Koch P30

Taking the firearm apart for a job such as refinishing, and putting it back together to specification. Generated from the Pew-Takedown entry last updated 2026-10-29. Confidence: high.

Shop difficulty: Tier 2 of 3

About 60 key numbers (107 rows in HK's list are swollen by V1/V3/SV3, calibre and magazine variants). The frame has HK's elbow/leg springs: the trigger return spring is hard enough to fit that a dedicated pliers is sold for it, and the slide's retaining spring under the firing-pin block is a known trap. More than a Glock, short of Tier 3. 73 parts (P30 models (9 mm and .40 S&W; V1, V2, V3 and SV3 variant rows) per this page's transcription; 105 rows, 73 distinct key numbers (highest key 60). P30L and P30SK lists omitted.). Pew-Takedown's rating, not the manufacturer's.

Bench time: strip ~30 min, rebuild ~45 min (estimate). Actual: strip ______ rebuild ______

Special tools:

• HK trigger return spring pliers — Seating the trigger return (elbow) spring
• roll-pin punches (3 mm class) — Extractor, firing pin and magazine release roll pins
• dovetail sight pusher (or brass drift and padded vise) — Removing and refitting dovetailed sights for coating

Watch for:

• The trigger return spring (an elbow spring) is so hard to place that HK specialists sell pliers just for it; without them it takes an extra pair of hands. (reassembly; HK Parts (parts retailer))
• A P30 owner names the trigger spring as one of the most difficult steps and says the spring tool takes most of the hassle out. (reassembly; SIGforum)
• In the slide, the retaining spring is held by the firing-pin retaining block in a way the common videos do not show, so it is easy to rebuild wrong. (reassembly; SIGforum)
• HK stops owners at the field strip; anything further is armorer work. (both; Heckler & Koch USA (Heckler & Koch, Inc.))

1. Clear and make safe

1. Point the muzzle in a safe direction and keep your finger off the trigger.
2. Press the magazine release and remove the magazine.
3. Retract the slide fully to eject any chambered round and lock it open.
4. Visually inspect the chamber and magazine well, then physically feel the chamber to confirm it is empty.
   Warning: Look and feel. Both, every time.
5. Remove all live ammunition from the work area.

2. Disassemble

Field Strip

1. Complete the Clear and Make Safe procedure and carry out a safety check.
2. With the magazine removed, pull the slide all the way back and hold it there, then push the slide release upwards to lock the slide back.
3. Hold the pistol with your thumb covering the rear of the frame and your fingers resting on top of the frame.
4. Pull the slide back and move it forward as far as the disassembly position.
   Tip: The P30 has a distinct disassembly notch. The slide is parked there, not released.
5. With your free hand, press the slide release axle in from right to left.
6. Pull the slide release to the left until it reaches the locking position, then pull the slide forward off the frame.
7. Turn the slide upside down and carefully push the recoil spring forward and out to either the left or right side, separating it from the barrel and slide.
   Warning: The recoil spring is under tension.
8. Pivot the barrel slightly forward and press downward on the barrel locking block through the ejection port, separating the barrel from the slide.
   Tip: The barrel does not lift straight out. Pivot forward, then press the locking block down through the ejection port — this is the step most generic striker-pistol instructions get wrong on an HK.

3. Refinish

The components the procedures above separate. Coating, masking and cure are outside this database; follow your coating system's instructions. A part the manufacturer marks "factory fit" should not be swapped or reworked.

The manufacturer's full parts list (105 parts) is on the reference page.

4. Reassemble

Reassembly

1. Turn the slide upside down and place the barrel into it with the barrel's angular locking surface facing upwards.
2. Pivot the barrel back towards the rear until its locking block snaps into the slide's ejection port.
3. Push the front end of the recoil spring guide rod through the hole in the front of the slide, against the pressure of the recoil spring.
   Tip: Note this differs from the VP, where the pronged end goes into a tang below the muzzle.
4. Push the recoil spring forward, compressing it, then pivot the back of the guide rod onto the stepped mounting surface on the front of the barrel locking lug. Check the front of the recoil spring faces forward in the slide.
5. Check that no magazine is present in the magazine well.
6. Mount the slide onto the frame with the recoil spring centred underneath the barrel and the frame rails in the grooves on the bottom of the slide.
7. Pull the slide back as far as the disassembly notch position and hold it there, then seat the slide release, run the slide forward and perform the function check.

5. Torque

No manufacturer torque values are recorded for this firearm.

Reported by other sources — not the manufacturer

Notes: The manufacturer's documents give no torque value. They say: "DO NOT OVER TIGHTEN THREAD PROTECTORS." (P30 Series Operator's Manual (9.16.26 FINAL), PDF p. 11 ("Instructions for use of HK thread protectors"))

Fit or check on rebuild

• Trigger return spring leg orientation — The elbow spring's legs must sit in their notches or the trigger will not reset
• 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

6. Function check

• Verify the pistol is unloaded with no magazine inserted before each check.
• With the hammer down, press the trigger for a double-action hammer fall.
• Cock the hammer, operate the safety or decocker as fitted, and confirm the expected behaviour.
• Rack the slide and press the trigger for a single-action break.
• Hold the trigger back, rack the slide, release slowly and confirm the reset.
• Confirm the slide locks open on an empty magazine and the magazine drops free.

If any check fails, the firearm is not safe to fire. Stop and see a licensed gunsmith.

If it won't go back together

Sources

1. Heckler & Koch P30 Series Operator's Manual — Heckler & Koch primary
   https://hk-usa.com/wp-content/uploads/2023/09/P30-Series-Operators-Manual-3_1_21.pdf
2. P30 Series Operator's Manual (9.16.26 FINAL) — Heckler & Koch USA (Heckler & Koch, Inc.) primary
   https://hk-usa.com/wp-content/uploads/2026/09/P30-Series-Operators-Manual-9.16.26-FINAL.pdf
3. Trijicon RMR / SRO | Holosun 507c Sight Mount for HK VP9 | VP9SK | P30 | P30L | P30SK | HK45 | HK45C | VP40 (EGW product page, installation instructions section) — Evolution Gun Works (EGW) secondary
   https://egwguns.com/trijicon-rmr-sro-holosun-507c-sight-mount-for-h-k-vp9-vp9sk-p30-p30l-p30sk-hk45-hk45c-vp40
4. H&K VP9 P30 HK45 Red Dot Mount | EGW Vortex Venom Plate (EGW product page, installation instructions section) — Evolution Gun Works (EGW) secondary
   https://egwguns.com/vortex-viper-venom-h-k-vp9-vp9sk-p30-p30l-p30sk-hk45-hk45c-vp40-sight-mount-fits-burris-fastfire-and-docter
5. HK Pistol Trigger Return Spring Tool - Pliers (product page) — HK Parts (parts retailer) secondary
   https://hkparts.net/maintenance-tools/hk-pistol-trigger-return-spring-tool
6. Sigs vs HK's - Topic — SIGforum anecdotal
   https://sigforum.com/eve/forums/a/tpc/f/430601935/m/6900042305

Educational guide only. Some information comes from non-authoritative sources. Always consult your manufacturer's manual and a licensed gunsmith. Verify your firearm is unloaded before every procedure. Full disclaimer: https://github.com/Fundamental-build-LLC/Pew-Takedown

Legal notice: this material is third-party information compiled from sources of varying reliability and is provided for general informational and educational purposes only. It is not gunsmithing, technical, safety or legal advice, it is not verified or endorsed by any manufacturer, and it must not be taken as fact. Any work on a firearm beyond the routine field stripping described in its own owner's manual should be performed only by a licensed and insured gunsmith. You use this material entirely at your own risk. Fundamental Build LLC and the project's contributors make no warranty of any kind and accept no liability for death, injury, damage or loss arising from its use. Full terms: LEGAL.md.