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HKPRO PREMIUM PARTNER
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Discussion Starter #1
Wonders never cease...
After about 900 round through my "new" MP5 (sighting/auto fire/drills/) to my great amazement, I discovered -while cleaning-that bolthead is outfitted in one regular (8mm) and one plus four (8.04mm) rollers.
What's up with that?
Prior to firing I dutifully measured the bolt gap (it was .40mm - thus within specs)
Locking piece looks unworn and symetrical.
Any thoughts?
Liabilities?
Thank you for looking,
Very concerned and feeling foolish
(but hey, if you don't ask you will not learn)
 

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266 Posts
thats not good.. and a NO NO!
get the same size on the 2 sides (the 2 that makes the best boltgap)
 
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