 The caponier ( rifle gallery ) extends into the ditch between the rampart and glacis from the fort 's north west corner . It is connected to the fort via a tunnel , running under the rampart from the manning parade . For blast protection and defensibility the tunnel was built with a dogleg . The caponier has rifle firing ports and was originally protected from direct artillery fire by the glacis . Early plans showed the caponier extending from the fort 's south west , and a tunnel linking the magazine and southern guns . 
 The caponier ( rifle gallery ) <a href='uninflect' title='1'><mark>extends</mark></a> into the ditch between the rampart and glacis from the fort <a href='null_genetive' title='2'><mark>'s</mark></a>north west corner . It is connected to the fort via a tunnel , running under the rampart from the manning parade . For blast protection and defensibility the tunnel was built with a dogleg . The caponier <a href='got' title='3'><mark>has</mark></a> rifle firing ports and was originally protected from direct artillery fire by the glacis . Early plans showed the caponier extending from the fort <a href='null_genetive' title='4'><mark>'s</mark></a>south west , and a tunnel linking the magazine and southern guns . 
Da caponier ( rifle gallery ) extend into tdaditch between thdaampart and glacis from the fort  north west corner . It is connected to thedart via a tunnel , running under the rampart from the daning parade . For blast protection and defensibility the tunnel was built with a dogleg . The cdanier got rifle firing ports and was originally protected from direct artillery fire by the glacis . Early plans showed the caponier extending from the foda south west , and a tunnel linking the magazine and southern guns .