rel ▁and ▁magazine ▁are ▁inter change able . ▁The ▁Ball ester – M ol ina ▁is ▁also ▁known ▁as ▁H AF D AS A , ▁after ▁the ▁initial s ▁of ▁its ▁manufact urer . ▁ ▁Use ▁The ▁Ball ester – M ol ina ▁was ▁pre domin antly ▁used ▁by ▁Argentina ' s ▁security ▁forces . ▁The ▁Argent ine ▁Army ▁adopted ▁it ▁as ▁its ▁standard ▁side arm ▁in ▁ 1 9 3 8 . ▁The ▁Ball ester – M ol ina ▁is ▁a ▁short ▁re co il - oper ated ▁semi - autom atic ▁locked ▁b ree ch ▁p istol . ▁The ▁lock ing ▁system ▁is ▁a ▁near - ident ical ▁copy ▁of ▁the ▁Model ▁ 1 9 1 1 ' s , ▁with ▁the ▁swing ing ▁lock ▁used ▁to ▁un lock ▁the ▁bar rel ▁from ▁the ▁slide . ▁The ▁p istol ▁has ▁a ▁two - stage , ▁single ▁action ▁trigger , ▁but ▁unlike ▁that ▁of ▁the ▁ 1 9 1 1 ▁trigger , ▁it ▁p iv ots ▁rather ▁than ▁slide . ▁The ▁spring ▁housing ▁system ▁is ▁integrated ▁to ▁the ▁p istol ▁frame ▁rather ▁than ▁being ▁a ▁separate ▁part . ▁The ▁ham mer ▁is ▁locked ▁by ▁the ▁frame - mount ed ▁manual ▁safety , ▁and ▁most ▁not ably ▁there ▁is ▁no ▁g rip ▁safety . ▁Many ▁examples ▁for ▁sale ▁on ▁the ▁sur plus ▁market ▁have ▁seen ▁heavy ▁use ▁but ▁show ▁little ▁internal ▁wear . ▁ ▁Some ▁ 1 0 , 0 0 0 ▁to ▁ 1 5 , 0 0 0 ▁were ▁sold ▁to