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Hk21 FMP parts

27K views 198 replies 37 participants last post by  Glynch  
Received my kit from Century today it also looks pretty good, bolt in decent shape, trunion has a little cut into it but nothing to sweat about. It was missing the belt feed retaining plate, stud and clip ( not sure if I'm calling that part right but thats what it does) This one did have an HK bolt head.
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I contacted Century about my missing feedblock retainer, stud, and clip and they said they would send them out. So if your missing or have unserviceable parts reach out to them.
 
I do believe the rails should welded in before the magwell is cut off. The trunion has to line up with the rails and be centered. This is how I'm going to figure out where the feed box goes. I don't know how you would adjust anything behind it? I wish I had a kit feed box cleaned up, there is still some receiver stuff welded in it. I did learn measuring that I haven't opened up the ejection port far enough on this one. Hope this helps and am more than willing to help in any way I can View attachment 429114
I like your thought process, looking good.