The HK94/MP5SD Problems....

Miacovet

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Not really, but I need some guidance. My SD would not eject the round. I noticed it had a 16 locking piece in the gun, so I put in a "Mp5sd" marked one (don't know if it is a 115 or 120) and it still wouldn't cycle. I also tried different ammo. What could I do to get it to cycle?

Thanks
 
What’s the bolt gap in the locked position?
It should be between .012-.020
 
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