HiPower Slide Velocity Pack
HiPower Slide Velocity Pack
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BHSS 9mm Optimized Recoil Springs and Main Springs for Browning Hi Power and Clones – Slide Velocity Calibration Pack.
Contains the Following BHSpringSolutions LLC Optimized Full-Size Hi Power Recoil Springs:
15 lb. BHSS Recoil Spring – OEM in Kareen Mark II and Mark III Hi Power Clones, Arcus 94 Hi Power Clones, Arcus 98DA. Useful for light reload ammunition and underpowered factory ammunition in FN/Browning Hi Power and “identical Hi Power Clones”(e.g. FM, Inglis, FEG etc.)
17 lb. BHSS Recoil Spring – OEM for Standard Pressure Ammunition in all FN/Browning Hi Powers and all “identical” Hi Power Clones. Useful for High Presssure (+P) ammunition in Kareen Mark II/III, Arcus 94, and Arcus 98DA
18.5 lb. BHSS Recoil Spring – Useful for High Pressure (+P) ammunition in FN/Browning Hi Power and all “identical” Hi Power Clones.
BHSpringSolutions Hi Power Main (Hammer) Springs in 32 lb., 30 lb., 26 lb., 24 lb.
32 lb. BHSS Main Spring – OEM in FN/Browning Hi Powers and many identical Hi Power Clones.
30 lb. BHSS Main Spring - OEM in Kareen Mark II/III and Arcus 94. Preferred by many Hi Power owners in all Hi Powers.
26 lb. BHSS Main Spring - OEM in Arcus 98DA/98DAC, and often preferred by gunsmiths for all Hi Power models for betterment of trigger pull. Normally does not necessitate a stronger Recoil Spring when all springs are “healthy”.
24 lb. – BHSS Main Spring - Makes slide significantly easier to rack against the resistance of the hammer. May necessitate a stronger recoil spring for rearward slide velocity control.
BHKnowledgeBase Material about the applications for these springs included with order.
BHSpringSolutions LLC Recoil Springs are tested by mechanically cycling, 10,000 times, a representative sample of each production run. Typical result after 10,000 cycles is a loss of only 1mm of relaxed recoil spring length (retaining 99% of original relaxed length), and only ½ lb of resistance (retaining 97% of original resistance) – remaining “fit for service” (within acceptable specs for use in the Hi Power design).
All BHSpringSolutions Coil Springs are made with BHSS Optimized “Closing Coil” on both ends, and filed on each end for maximum surface contact and performance. BHSpringSolutions LLC exacting dimensional length standards assure optimal spring resistance and performance at all points of the spring’s compression and decompression.
BHSpringSolutions LLC recommends a Best Practices approach of complete Spring Replacement, every 5 years or 5,000 Rounds, with BHSpringSolutions LLC Optimizing Springs. In shorter barrel handguns classified as “Commander”, “Compact”, “Detective”, “Subcompact”, “Officers”, etc., a more frequent recoil spring change regimen is recommended.
You accept that it is solely your responsibility to assure that any firearm you may own, possess, handle or work on, is completely unloaded and handled in a safe and responsible manner at all times and that you hold harmless BHSpringSolutions LLC, its employees and officers, from any and all liability resulting from use of firearms.
You acknowledge that it is your responsibility to assure that your firearm(s) are functioning in a safe and reliable manner and that if not, whether you have installed a BHSpringSolutions LLC product or not, you will take any and all measures, including repairs by a qualified Gunsmith, required to correct such issues before loading and using your firearms.
BROWNING, FN, FM, FEG, OTHER CLONES IDENTICAL TO THE FN/BROWNING HI POWER
For the purposes of this discussion, the Kareen Mark II/III and Arcus 94 fall into “Clone” but not “identical clone” category. During this discussion, the term “Kareen/Arcus clones” refers to this category of clones that include the Kareen Mark II/III and Arcus 94 Hi Powers.
LEGAL NOTES: THE END USER OF ALL BHSPRINGSOLUTIONS LLC PRODUCTS UNDERSTANDS THAT ANY ALTERATIONS TO A FIREARM THAT DEVIATE FROM OEM PARTS AND SPRINGS MAY VOID THE MANUFACTURERS WARRANTY. THE INFORMATION PROVIDED HEREIN IS SHARED AFTER THOUSANDS OF ROUNDS OF TESTING AND ANALYSIS, BUT MAY NOT BE APPLICABLE TO ALL FIREARMS OF MAKE AND TYPE REFERENCED IN THIS INFORMATION. THIS INFORMATION IS INTENDED FOR EXPERIENCED USERS OF THIS FIREARM MAKE AND MODEL AND CONSUMER IS RESPONSIBLE FOR OBTAINING ADDITIONAL KNOWLEDGE NECESSARY TO FULLY UNDERSTAND THE CONTENT OF THIS INFORMATION. THE END USER OF THIS PRODUCT SHOULD CONSULT WITH A QUALIFIED GUNSMITH BEFORE ALTERING ANY FIREARM.
The Hi Power
The Single Action (SA) Hi Power has a simpler recoil cycling design, compared to semi-auto pistols of a Double Action/Single Action (DA/SA) design. When cycling rearward, the slide encounters the resistance of the Main Spring as the slide re-cocks the hammer, and of course the slide also encounters the resistance of the Recoil Spring. Both springs do two jobs – both play a role in controlling rearward slide velocity (recoil). Although the two springs work together to control rearward slide velocity, after the slide moves fully rearward the Main Spring’s job is momentarily finished and the recoil spring finishes it’s job when it propels the slide into it’s forward most position (battery). The Main Spring finishes it’s job when the trigger is pulled, causing the Hammer to hit the Firing Pin with sufficient force that the Firing Pin overcomes the resistance of the Firing Pin Spring. We refer to this design as “simpler” because it can be easier to accomplish “Slide Velocity Synchronization” in the Hi Power, than in a DA/SA CZ 75 (as an example), where the trigger is “pulled” slightly rearward when the hammer is cocked by the slide, which also makes the resistance of the Trigger Return Spring part of the equation of controlling rearward slide velocity. The SA Hi Power relies on only two springs to control rearward slide velocity which also means the Recoil Spring in a SA semi-auto will usually need to be stronger than the recoil spring in a DA/SA semi-auto. The heavier recoil spring translates into more authoritative forward slide velocity that strips and chambers the next round from the magazine.
17 lb Recoil Spring - The OEM Browning Hi Power Recoil Spring works well with any BHSS Hi Power Main Spring. Works well with most all standard pressure ammunition. Note: When combined the BHSS 26 lb Main Spring, the 17 lb Recoil Spring may be a bit “light” for some ammunitions. In the Kareen/Arcus Clones this spring is used for +P ammunition.
18.5 lb Recoil Spring – Primarily used with +P rated ammunition. Sometimes used with standard pressure ammunition when using 26 lb Main Spring. Important note – when used with a 32 or 30 lb Main Spring, this Recoil Spring can cause “short cycling” (malfunctions) if shooting Standard Pressure ammunition.
15 lb Recoil Spring – This is OEM in the Kareen/Arcus Clones! In the Browning Hi Power and identical clones, the 15 lb Recoil Spring is primarily used for lower powered ammunition and light reloads that don’t cycle well with the 17 lb Recoil Spring. If using the 32 lb Main Spring, some factory 115 gr FMJ ammunition may cycle best with the 15 lb Recoil Spring.
MAIN (HAMMER) SPRING
32 lb Main Spring – This is the OEM Main Spring for today’s current production Hi Powers. Most gunsmiths who customize Hi Powers agree that this spring is “overkill”. It is sufficient to also be used in the Browning/FN .40S&W Hi Power. It creates a lot of hammer pressure on the sear that contributes to a heavy and even difficult trigger “break”. When a Hi Power is retrofitted with an SFS kit, the Main Spring supplied with the SFS kit measures 30 lb. The SFS kit was developed by an FN engineer – further possible validity that a 32 lb Main Spring is a lot of spring for the application. Can be used to slow rearward slide velocity.
30 lb Main Spring – This is the OEM in the Kareen/Arcus Clones and SFS equipped Browning/FN Hi Powers. Preferred by many gunsmiths in all Hi Powers. Sufficient for use with the BHSS Heavy Firing Pin Spring.
26 lb Main Spring – This is the OEM Main Spring in the Arcus 98DA and 98DAC Hi Power Inspired Handguns. It also works well in the Hi Power. When used, this Main Spring significantly reduces hammer pressure on the sear. Lightens trigger pull. BEST PRACTICES RECOMMENDATION: Sufficient for use with the BHSS Heavy Firing Pin Spring – HOWEVER – if used with the BHSS Heavy Firing Pin Spring, user should commit to changing the Main Spring every 24 months or 2,000 rounds. If used with the Light Firing Pin Spring, user should commit to changing this spring every 48 months or 4,000 rounds. It may be necessary to “up” the resistance of your Recoil Spring when going down to this 26 lb Main Spring.
FIRING PIN SPRING
The Hi Power’s Firing Pin Spring does not impact slide velocity. Unlike Browning striker fired semi-autos where the Firing Pin Spring propels the firing pin forward, the Hi Power’s Firing Pin Spring retains the Firing Pin in it’s rearward position. In Hi Power models without a Firing Pin Block Safety, the Firing Pin Spring is the “Drop Safety” and is the only protection against an unintended discharge that is possible if a Hi Power is dropped on the muzzle with a round in the chamber.
Heavy Firing Pin Spring – Current production Hi Power OEM. Recommended for use in all Hi Powers and Hi Power Clones, including the Kareen/Arcus Clones that do not have a Firing Pin Block Safety (Drop Safety) employing the use of a Sear Lever Spring.
Light Firing Pin Spring – OEM in the Kareen/Arcus Clones and Arcus 98DA and 98DAC Hi Power Inspired Handguns. NOTE: BHSpringSolutions recommends all Kareen and Arcus Hi Power owners replace the Firing Pin Spring with the BHSpringSolutions HEAVY Firing Pin Spring. Often used by users of the 26 lb Main Spring. Sufficient for all Browning/FN Hi Powers and FM 95 Hi Powers equipped with a Firing Pin Block Safety. And although this Firing Pin Spring was OEM in the Kareen/Arcus Clones, that do not include a Firing Pin Block Safety, BHSpringSolutions LLC does not recommend the use of this spring in Hi Powers that do not have a Firing Pin Block Safety.
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