▁against ▁the ▁pressure ▁of ▁the ▁re co il ▁spring ▁where ▁extra ction ▁and ▁feed ing ▁a ▁fresh ▁cart ridge ▁happen ▁similarly ▁to ▁other ▁designs . ▁ ▁As ▁the ▁slide ▁moves ▁forward , ▁the ▁lock ing ▁piece ▁maintain s ▁out ward ▁pressure ▁on ▁the ▁roll ers . ▁When ▁the ▁re cess es ▁in ▁the ▁slide ▁are ▁position ed ▁with ▁the ▁roll ers , ▁the ▁lock ing ▁piece ▁will ▁push ▁them ▁out ▁into ▁the ▁re cess es ▁and ▁move ▁forward , ▁lock ing ▁the ▁bar rel ▁to ▁the ▁slide ▁again , ▁the ▁bar rel ▁and ▁slide ▁will ▁move ▁forward ▁a ▁small ▁amount ▁and ▁stop . ▁Un like ▁a ▁standard ▁Brow ning ▁short - re co il ▁action , ▁there ▁is ▁no ▁t ipping ▁of ▁the ▁bar rel ▁during ▁operation . ▁ ▁See ▁also ▁▁ ▁Rot ating ▁b olt ▁ ▁External ▁links ▁ ▁How ▁Does ▁It ▁Work : ▁Rol ler ▁Lock ing ▁F org ot ten ▁We ap ons ▁ ▁Category : Fire arm ▁actions <0x0A> </s> ▁The ▁Reg ius ▁Chair ▁of ▁Public ▁Law ▁and ▁the ▁Law ▁of ▁Nature ▁and ▁Nations ▁is ▁a ▁Reg ius ▁Professor ship ▁at ▁the ▁University ▁of ▁Edinburgh . ▁It ▁was ▁established ▁in ▁ 1 7 0 7 ▁by ▁Queen ▁Anne , ▁and ▁was ▁the ▁first ▁chair ▁in ▁law ▁created ▁at ▁the ▁university . ▁ ▁History ▁The ▁chair ▁was ▁founded ▁in ▁ 1 7 0 7 , ▁the ▁year ▁of ▁the ▁union ▁of ▁Scotland ▁and ▁England , ▁by ▁Queen ▁Anne , ▁and ▁was ▁the ▁university ' s ▁first ▁chair ▁in ▁Law .