[QUOTE=Peter Laidlericon;153657]You might be interested to know that the very last version of the Bren, The L4A9 had a dovetail mount on the left hand side so that it could take the night sight. Used in the watchtowers and along the borders in Northern Ireland. Not too successful because the heavy sight would tip the Bren/L4 over to the left and fall on the actual night sight, cracking the OG lens (£250 or so.....) and shearing off the screws that hold the inverter housing cover in place. The IIW sight bracket dovetail effectively meant that the Bren had gone full circle

And that Bracket looks VERY similar to the one on the L7A2 (GPMG). BUT, it is made from steel, & the L7 variant is Aliuminium! (Just for Bren Spotters!) LOL!