BHRecommended Maintenance Intervals / Parts Replacement Intervals in the Hi-Power
| All Wire Springs in the Hi-Power: Every 5 Years or 5,000 Rounds, whichever comes first
(This "Best-Practices Recommendation" is aggressive because of the many variables that can impact the service life of any spring. Owners of Compact Barrel Length Hi-Powers should replace Recoil Spring(s) every 2,500 Rounds.
Remember, ALL SPRINGS that are compressed upon Install are "working" (exerting energy), so yes, Compressed Springs do wear themselves out with TIME, and use.)
Sear Spring (flat metal spring in the HP Grip Frame)
Replace every 20 - 25 Years*
The Sear Spring doesn't see much stress from function / shooting so "Round Count" is not a factor in this replacement interval recommendation. If ever a Hi-Power's Trigger Break Weight becomes Lighter, over time, for no reason, the Sear Spring should be suspected of having surpassed it's useful life and replaced.
*Note: More recent Hi-Power production from Springfield, Girsan, Tisas, have produced instances where Sear Spring service life (ability to apply sufficient pressure/stability to the Sear) has been observed to be less than 1-2 Years. Trigger break weight readings of less than 4.5 lbs in these models, or any Hi-Power model (when unmodified) should not be loaded or used until a safety testing protocol is completed. Contact BHSpringSolutions for Consultation.
Factory OEM Hi-Power Barrel
Approximately 20,000 - 25,000 Rounds
Heavily influenced by the maintenance protocol of the Hi-Power where the Barrel is installed. The union of the 2-piece original HP Barrel design does NOT get stronger over time. Users may expect longer service life from the BHAdvanced Barrel for Hi-Powers due to the reinforced Barrel Cam Lug and 1-Piece Design.
Extractor
Approximately 12,000 Rounds or when a New Extractor Spring does not restore satisfactory extractor hold
The Hi-Power Extractor is the #1 Replaced Hi-Power "Hard-Part" at the BHCustomShop Service Dept.
Due to the Hi-Power Extractor's modest size, a small amount of wear usually necessitates replacement.
Ejector
Approximately 20,000 - 25,000 Rounds or if ever
Ejector shows signs of wear or deformation.
Because the Ejector works in cooperation with the Extractor, recement of the Ejector at time of Extractor replacement may be considered a "Best-Practices Approach" if Ejector shows any signs of wear.
Firing Pin Retaining Plate
This Part has a Fracture Reputation - always visually check this part for any sign of fracture during normal cleaning after use.
On or around 1989, FN/Browning redesigned / improved the Hi-Power's Firing Pin Retaining Plate. On the "face" of the redesigned firing pin retaining plate, above the hole where the firing pin protrudes, there is a circle impression with three partial horizontal lines visible inside the circle.
BHSpringSolutions recommends all Hi-Power users keep a spare Firing Pin Retaining Plate on hand and / or replace any firing pin retaining plates that are not the newer design.
FIRING PIN
Approximately every 20,000 - 25,000 Rounds or if ever any wear or deformation is observed.
This is a High-Impact Component. It's also a very well designed part that has been produced well by most manufacturers of the Hi-Power. Although Firing Pin failures have happened and have been observed, it is relatively rare in well-maintained Hi-Powers. Replacement reduces the liklihood of failure-to-fire.
BHSpringSolutions recommends Hi-Power users have a spare Firing Pin on hand.
TYPE II SEAR LEVER (DROP-SAFETY TYPE)
Replace at approximately 30,000 - 40,000 Rounds or if wear is observed at any engagement area.
This is a well-designed multi-function part that rarely requires replacement except in high round count Hi-Powers. Anytime this part exhibits any wear, BHSpringSolutions recommends replacement to achieve least possible trigger travel and most reliable / best-performing Trigger Reset.
OEM RECOIL SPRING GUIDE ROD
Approximately Every 25 Years
The Hi-Power's OEM Recoil Spring Guide Rod contains a captured non-replacable spring. The influence of the internal spring maintains the Hi-Power's Slide Stop in the "down position" until manipulated upward by the magazine follower when the magazine is empty.
The captured spring can be compromised by rust or natural loss of strength over time.
With a Hi-Power fully assembled and no magazine installed, a press upward on the slide stop should result in the slide stop naturally returning to the "down" position. Failure to pass this test indicates the spring inside the Recoil Spring Guide Rod has surpassed its useful life.
Type 1 (Floating) Sear Lever
Replace with: BHAdvanced Type 1 Safety Sear Lever w/ Spring for Hi-Powers
Because the Hi-Powers' original floating sear lever can and does contact the sear by virtue of the slide returning to forward battery, BHSpringSolutions recommends replacement of ALL Type 1 Floating Sear Levers in all Hi-Power Models containing a Type 1 Floating Sear Lever in favor of the BHAdvanced Type 1 Safety Sear Lever w/ Spring which maintains the Sear Lever positively positioned until activated by the trigger / trigger lever.
TRIGGER LEVER
Replace approximately every 20,000 Rounds or anytime any wear is observed.
Anytime this part exhibits any wear, BHSpringSolutions recommends replacement to achieve least possible trigger travel and most reliable / best-performing Trigger Reset. Also, over time, the relationship of the Trigger Lever where it mounts/mates with the trigger
OEM TRIGGER & MAGAZINE DISCONNECT
With normal cleaning, rust preventative practices,
and spring maintenance, Service Life of these components may exceed 50,000 Rounds
OEM MAGAZINE CATCH / RELEASE
Approximately 25,000 - 30,000 Rounds or if ever mag is not reliably retained in the grip frame due to excessive wear at the Magazine Catch's engagement area.
SLIDE STOP
Replacement required only if excessive wear is exhibited in the area that engages with the detent ball in the Recoil Spring Guide Rod, or if any signs of metal fatigue are observed.
Failure of this part is extremely rare.
OEM Hammer-Assembly/Sear/Safety-Assembly (a.k.a. at BHSpringSolutions: "The Hi-Power's holy-trinity")
This is the Hi-Power's Operating System and the three Parts/Assemblies involved are relational and are considered "mated parts".
With normal cleaning, spring maintenance, and rust preventative, Service Life of an OEM Hi-Power Operating System and its components may exceeed 25,000 Rounds.
Replacement of one or two areas of the operating system may require professional assistance and may not be possible in some cases.
If ever any excessive wear is expected in any of the components involved in a Hi-Power's Operating System, consult with a BHSpringSolutions Representative.
This recommendation covers the following components: Hammer, Hammer Strut, Hammer Strut Pin, Hammer Strut Strut-Nut, Hammer Strut Strut-Nut Stop Pin, Sear, Safety Lever(s), Safety Lever Detent.
SOLID PINS (Trigger Pin & Sear Pin)
Replace if pin shows any visible wear, deformation, or metal pitting. Replace Trigger Pin if it no longer reinstalls snug in the grip frame.
Roll Pins (Various)
Replace if pin shows any visible deformation, rust-compromise, or fails to reinstall snug in its "home".
OTHER NOTES / DISCLAIMERS: The estimates of Service Life and Maintenance Intervals noted here are general guidance from BHSpringSolutions based on the servicing of over 500 Hi-Power Pistols at the BHCustomShop Service Dept as of February 2024.
The actual experienced longevity of any component in any handgun may beless or more than these estimates based on a large number of factors and variables that influence length of useful service life.
There are no substitutes for periodic Gunsmith Safety Inspections of your firearm. |
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