A must have for my MAC 5 . This with a new extractor, fixed my issues . You should have a few of these in your kit if you run MP5 / MP5k and or clones .

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Product details
Brand: FMP HK CONTRACT
All reviews
High review mostly based on quick shipping, price, and availability. Since these are replaceable maintenance parts the HKP selection makes the most sense. I probably would defer to authentic HK parts for most everything else but I might try the RCM locking piece just to try it out.
What it is supposed to be
Great product
One of the very few parts that you will need for longevity.. good quality, fast shipping always a pleasure to do business with HKP.
Bought these as spares so can’t review on reliability but look and feel the same as the more expensive ones
Fixed the problem in a clone I got second hand.
works great
I haven't had to use these yet, but they are on standby in case I need them. They look good and I hope that they work as intended.
Bought these for spares for just in case haven’t trial fit them yet I’m sure they’ll work fine. I really should’ve bought a 10 pack but because of the economy kind of low on cash I appreciate HK. And you as a distributor thank you!
great bargain should work fine
Well made and great price
Made my MKE MP5K eject brass much more consistent.
Ten characters
I bought it as a spare, and fortunately haven't needed it yet. Seems well made.
These do the trick. If you own an MP variant, you need to have all least three of these on standby!
It’s hard to beat real German parts
Just in case
Needed for back up
It’s a must for mp5 part Good quality
