SOME PF9 HISTORY:
A MODELS:
The first 100 PF9s were mostly bought by the factory employees and distributors. George Kelgren himself took the first 19 off the assembly line.
The little gun had a slew of problems though:
1. They tried to use the same screw for the sight as for the extractor. But when the screw was tightened during production this caused it to intrude into the hammer arc which caused:
2. HAMMER PEENING from hitting the screw, which caused:
3. HAMMER SLIDE SCORING, which caused additional wear to the hammer which then caused more hammer slide scoring etc. which caused
4. A PLETHORA OF FINE BRASS DUST from the cartridges being shaved by the rough hammer slide.
5. The firing pin channel in the slide was too large and allowed the FP to wobble around and strike the primer crookedly. This resulted in:
6. Light primer strikes and fail to fires. The large hole also quickly attracted brass shavings from the:
7. SLIDE LOCK TAB TOO LARGE that rubbed against the bullet noses and piled up shavings. This also caused:
8. FTS, a weird kind of FTFeed that locked open the breech with the cartridge nose trapped under the Slide stop tab.
9. It also had problems with the first 3 rounds in the magazine tending to nose dive into the feed ramp.
10. The magazine follower is a soft material and quickly developed a gouge caused by the last round flipping end for end and smacking its rim into the top of the follower.
11. The slide was not properly hardended. This caused slide bending which gradually caused:
12 Barrel and breech peening and:
13. Light strikes from slide not closing into battery.
14. Many slides also cracked at the slide stop notch.
All who returned their dull blued A models received back brand new Parkerized B models with their old serial number stamped thereon.
The original first owners, the PIONEERS who bought the early A and B models are listed HERE:
http://www.ktog.org/cgi-bin/yabb/YaBB.cgi?board=newpistol;action=display ;num=1162332400;start=0#0
Production was halted 10/06 while KT sorted out the slide hardening problems. When production resumed at about SN 100, The brightly blued C model was born. This gun may still have some problems:
1. FTLoads due to cartridges nose diving into feed ramps
2. Ejectors that break after 200-700 rounds.
3. Assembly pins that lose their heads unexpectedly.
4. The slide lock tab has been changed several times and may be so sharp now, that it cuts a hole into the mag follower.
5. Discolored slides where super-hardened areas did not blue well.
IMO, production of C models was halted 01/07 slightly past SN 1000 or R0A00.
The list of known KTOG C models is HERE:
http://www.ktog.org/cgi-bin/yabb/YaBB.cgi?board=newpistol;action=display ;num=1166234817;start=0
If YOU own a PF9 and are NOT on either the A, B, C, or later list, Please post your SN, date purchased, location and price before tax here:
http://www.ktog.org/cgi-bin/yabb/YaBB.cgi?board=newpistol;action=display ;num=1166234817;start=105#114
so I can add you to the list.
The latest models, (Ds) that will start somewhere after SN R0A00 (Probably mid March 07) will have a new, longer and shallower feed ramp on the barrel. They may also have a new or altered magazine and a different slide lock tab system more akin to the P11.