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  1. Grease Gunner

    Latest HK51 SBR build

    I have to say that I like my HK51 I bought and fixed. It doesn’t beat on you as bad as you’d think.....it’s the muzzle blast and concussion that gets you!
  2. Grease Gunner

    First CC Date Code Seen

    I had my hands on a USP with a C.C. date code. Forgot to take a pic
  3. Grease Gunner

    Converting full auto packs to semi only yesterday

    So I’m asking for a “friend” is it cheating that I wrote a program for my cnc mill to make the semi auto cut on trigger packs? I finished converting four packs yesterday and waiting for my order to come in so I can do another 10. Gotta keep busy somehow....and wait for parts to come in so I...
  4. Grease Gunner

    Decided to work on the SD mess this afternoon.....

    I think it'll shoot.....that was 10 yards back to 25 yards shooting semi, burst and a full dump at 15 yards. Total of 100 rounds on that target.
  5. Grease Gunner

    Starting the new project-HK21

    Here it is in the sunshine. Yes it’s purdy....
  6. Grease Gunner

    WTB MP5 Bolt Carrier

    I’m in need of an MP5 9mm bolt carrier. Anyone have an extra laying around?
  7. Grease Gunner

    Starting the new project-HK21

    As requested.......pics of it all together......going to get that latch on order so I can change that out and shoot it a little. This will be a safe queen most the time as it’s hard on the shooter lol but it’s nice to now have one.
  8. Grease Gunner

    Starting the new project-HK21

    I found what I think was the issue on the HK21 feed issue. The feed mech locking tab/release button has a piece missing. The tab that locks it all the way in is gone, which would allow the feed mech to “float” so that can explain the feed timing issue. With the being found I felt good about...
  9. Grease Gunner

    Starting the new project-HK21

    I’ve got a timing issue I’m sorting out. On semi it keeps up and does fine but on full or a rapid pace semi, it’s as if the bolt is moving faster than the belt can keep up and the empty case can’t clear the gun fast enough. I’m wondering if that spacer I put in can now be taken out since it’s...
  10. Grease Gunner

    Family photo :-)

    Soon I’ll have to get all my hosts out and take one giant pic....if I can get them to all fit in one frame LOL
  11. Grease Gunner

    Family photo :-)

    Since I’m closing in on the the HK21 being a completely functional weapon, I decided to take a family photo of my favorite “kids” up to this point.... (Yes I’m playing favorites as I have more MP5’s than the ones shown here LOL)
  12. Grease Gunner

    Starting the new project-HK21

    It’s coming alive in bursts!!!
  13. Grease Gunner

    Starting the new project-HK21

    Had to sit it on my 1919 tripod and see how the height would be. Yeah I’m gonna make an adapter to fit these two together. It’s a nice height to shoot from.
  14. Grease Gunner

    Starting the new project-HK21

    UPDATE.....well.....I spent the evening in the shop and have some exciting news to report.....the HK21 build has its pic rail mount for the bipod, welds have been ground, ejection port has been tweaked and dressed up, and full auto trip was tuned (more on this in a min) I took it out back at...
  15. Grease Gunner

    Starting the new project-HK21

    Here’s the laundry list of things to do for the HK21 build now- Fit full auto trip lever Install front sight blade Install a short section of pic rail up front (want to use a modern bipod) Grind/dress up welds Make/install a case deflector (maybe) Lengthen the cocking handle support (it’s a...
  16. Grease Gunner

    Starting the new project-HK21

    Dumping it into the dirt 4 foot away it’s amazing how it made the dirt go flying....I had the phone propped up so I could test it in the back yard.....my neighbors love me.
  17. Grease Gunner

    Starting the new project-HK21

    IT LIVES!!!!! Had it running great with a semi auto trigger pack. Had to lengthen the ejection port as it was bouncing the cases back into the feed area. I made the opening 3/16” longer and it now runs.....now I have to tune a trip lever for a full auto pack and try that out. I should have it...
  18. Grease Gunner

    Starting the new project-HK21

    Had a crazy idea today at work-how to test if spring tension is my issue.....well why not make a spacer to compress the spring and see if the added tension would cycle the gun. So with that in mind I came home, made a split sleeve, pressed it on the recoil spring rod, put it inside the carrier...
  19. Grease Gunner

    SubGun Sunday......

    I’m scare to know if that gofund me is legit or not hahahahaha
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