Direct Impingement

Direct impingement is a type of gas operation for a firearm that directs gas from a fired cartridge directly to the bolt carrier or slide assembly to cycle the action.

Read more about Direct Impingement:  Evaluation, History

Famous quotes containing the word direct:

    Parliament must not be told a direct untruth, but it’s quite possible to allow them to mislead themselves.
    Norman Tebbit (b. 1931)