Bicycle Rifle

3 dimensional drawings showing the relationship of the parts, known as Schematics were invented during World War II and the Quackenbush guns were made decades earlier, therefore, no schematics were made.  No additional parts hold the extractor in, it is just staked in.  When the Staking wears, they fall out.   All extractors are the same.   The extractors we sell are not relieved for staking. it is up to your gunsmith do do that and stake it in.