411 REFERENCE · Wiktionary
Pedersen device
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
Developed by John Pedersen (arms designer).
Noun
en firearms An experimental weapon attachment for the M1903 Springfield bolt action rifle that allowed it to fire a .30 caliber (7.62 mm) pistol-type cartridge in semi-automatic mode.
en eponyms