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154 Posts
Discussion Starter · #1 ·
I have an MP5 SD previously working but gradually over the months its beginning to have FTE issues, casing left in breach while new round half fed.

I noticed when inspecting the BCG is that the nylon rings on the recoil rod seem to have edge impressions and manually trying to compress it while in the bcg tube I can feel a catch before it will give through.

There is the bcg and the rod seems off centered

The extractor spring seems strong but not sure of how tight it should be.

I'm able to manually cycle a round and I suspect the recoil spring or rod may have issues

(Yes we did clean the gun very thoroughly)
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