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gap

  1. HK LONG GUN TALK
    Looking for experience shared by other armourers on the relation between bolt gap and function From my understanding, the MP5 has a "sweet spot" for the bolt gap at 0.25mm. HK literature specified 0.25mm to 0.50mm as the range for the bolt gap. From personal experience; Failures to Cycle...
  2. HK CLONE TALK
    Hi all ill get right to the point, so i remember in my hours of reading about ptrs somthing came up with certain issues with certain serial numbers. I was hoping someone could post those findings here so i can check my serial number. Also i have to sight this thing which i never have done...
  3. HK CLONE TALK
    QUESTION- Is there any bolt carrier wear that would affect head spacing? While the gap is measured from the front of the carrier, basicly the head spacing wear comes from the rollers which can be replaced and not from wear on the carrier. Head spacing is determined by "using feeler guages...
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