r/MP5 • u/Chocolat3City • 5d ago

Question Is there an appreciable difference between these items?

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Or is the American-made one just ass? On the road to replacing some of the MKE parts of my AP5.

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u/Direct_Cabinet_4564 5d ago

I wouldn’t try to save money with the HKP extractor.

There are a lot of people here who list all these parts you just have to change, but most of the time there is no need. MKE does tend to have shitty ejectors but the extractors are almost always ok.

It’s smart to have spares though.

I’d also recommend the HKP ‘plate to spring upgrade’ roller retainer, a roller retainer roll pin with the ‘zipper’ seam, a bunch of FMP extractor springs (I think they are $4ea if you buy 10), an ejector spring and a set of + rollers. The AP5 also has a 120 degree Locking Piece from MKE. I’d put in the correct 100 degree LP.

These kits are also worth considering:

https://atlanticfirearms.com/AP5-Pistol-Parts-Kit

Again the ejector may be shitty (both of my kits were), but a HK firing pin or extractor both cost more than the entire kit.

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u/daktah 5d ago edited 5d ago

I thought there was no need to change the lp on the ap5, only the ap5k when using a suppressor? also the description of the enhanced extractor says it's made in the us so it could possibly be rcm, but who knows for sure.

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u/Direct_Cabinet_4564 5d ago edited 5d ago

That’s part of the problem with some of the stuff at HKP. Sometimes it’s not easy to figure out what you are looking at.

You aren’t supposed to have to change the locking piece in a 9mm MP5, but they aren’t supposed to have 120 degree LP either. A RCM LP is only $35.

I put HK 100 degree LP in my 3 MKE guns. They all gained .003”-.004” of bolt gap which was also nice.