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Discussion Starter · #1 ·
I am new to the site and forums in general, so excuse me if I make a mistake, some forums can be rather critical.

After a long search I have purchased a HK Model 300 (22 Magnum) the gun is in good shape and showes signs of use, it is 20+ years old after all.

I was checking it out and discovered that the plastic bumper that the bolt hits at the end of it's stroke is comming apart, due to age I would assume.
Any suggestions as to a repair?
 

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You could try calling HK to see if they have any but they probably don't. They sometimes show up on Numrich, GB or Ebay from time to time. There is a company that makes buffers for the SL6/7 rifles and they are planning to make buffers for the 300 but haven't got any samples to work with:
Crit'R Call: H&K Buffer Plates

your best bet is to do as eglover7 suggested; make one by cutting down a MP5 buffer. several forum members have done it successfully:
http://www.hkpro.com/forum/hk-long-gun-talk/69772-hk-270-a-2.html

I'm not sure which one would work best:
http://www.hkparts.net/shop/pc/showsearchresults.asp?pageStyle=H&resultCnt=50&keyword=mp5+buffer

http://www.blackjackbuffers.com/index.php?main_page=product_info&cPath=65&products_id=698
 

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Merchant of Death (Admin)
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The rifle is long out of production and store for that original factory part have literally dried up. You'll have to find an aftermarket substitute, which can be problematic, or fashion one yourself. The 300 is a very fun gun and pretty darned accurate, too!
 

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Discussion Starter · #10 ·
Thanks for the info, that gives me a place to start.

I looked at the gun many years ago (30+ kids were on the way) and it just fit me and I wanted it. I decided that I would get one about a year ago and found that the supply had dried up. Many people that I talked to at gun shows did not even know what I was talking about. I purchased the one i have been talking about on the internet and it was just as good as I remembered. Gun is more accurate than I am. thanks again.
 

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Be very very very careful when cocking this and any of the sporting rifles made by HK. The cocking levers are not very sturdy on the HK300 and HK270. If that breaks your only option is to have a gunsmith make you a new one. I have also seen broken cocking levers on the HK630/HK770/HK940 as well.
 
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