mp5 mag date code question

[Shevchenko]

I have 4 preban mp5 magazines, someone asked about the date codes, I found that 2 of them should be legit and preban, but can't find info other the other two

IF - 85
IG - 86
IJ - ?
JA - ?

Logic would suggest IJ = 89, but I find it peculiar it's skipped on a few sites I've looked thru it goes IG, IH, IK...

No idea what JA would be, tho one person on this site mentioned JA = 90.

I'm not super concerned but since it was brought up figured I'd ask if anyone knew what was up

thanks

 

[drgrant]

A grinding wheel fixes silly problems. Maybe touch up paint....

 

[Shevchenko]

A grinding wheel fixes silly problems. Maybe touch up paint....

I'm a butcher with the Dremel haha

 

[whatluck]

The finish on those mags is awful. You should sandblast the finish off, go over the rough spots in between with a sanding block (you know to smooth out the high and low spots), and apply a new finish.

 

[MAJoe]

Magazine Date Code ID

Scored a small pile of 25 round HK 93 magazines today at a local pawn shop. All are date coded IE except for one. One is coded "HJ". See attached pics. I can't find a reference to "J" but I'm not especially familiar with HK date codes. Anyone? -E-

www.hkproshop.com

HG-76/HH-77/HI-78/HJ-79/IA-80/IB-81/IC-82/ID-83/IE-84/IF-85/IG-86/IH-87/II-88/IJ-89/JA-90/JB-91/JC-92; (LE) IR/ir-93; IE/ie-94; IS/is-95; IK/ik-96; IO/io-97; ID/id-98; II/ii-99; OR/or-00; NP/np-01; AC-02/AD-03/AE-04/AF-05/AG-06/AH-07/AI-08/AK-09/BA-10/BB-11/BC-12/BD-13/BE-14/BF-15/BG-16/BH-17/BI-18/BK-19/CA-20

Your logic is right up until 1992.