I came across this image of somebody's sig pistol with a not so sig mag.
the user also has a video of him shooting with this mag below:
Im curious if anyone has done this before and can share the process since 55x mags are pricy and hard to come by right now
Sig 553 Lower 2014 mfg with all Swiss made parts except stock/stock pin and pistol grip (US Sig grip) (Mag pictured not included). New take off of unfired Sig 553 (made in Switzerland) $1000
Swiss Sig 553 30rd Magazine $75...