▁produced . ▁ ▁History ▁Design ed ▁by ▁Friedrich ▁Lang en han ▁out ▁of ▁Z ella - Me hl is , ▁Germany , ▁the ▁Lang en han ▁was ▁in ▁production ▁from ▁ 1 9 1 4 ▁to ▁ 1 9 1 7 . ▁The ▁Lang en h ans ▁were ▁used ▁by ▁the ▁German ▁military ▁from ▁ 1 9 1 5 ▁until ▁an ▁unknown ▁date , ▁and ▁by ▁the ▁German ▁police ▁after ▁World ▁War ▁I . ▁Over ▁ 5 5 , 0 0 0 ▁were ▁made , ▁with ▁a ▁decent ▁amount ▁still ▁in ▁existence . ▁ ▁Fe atures ▁The ▁Lang en han ▁was ▁a ▁simple ▁blow back ▁p istol ▁fed ▁by ▁an ▁eight - round ▁single - stack ▁det ach able ▁box ▁magazine ▁stored ▁in ▁the ▁g rip ; ▁the ▁p istol ▁is ▁almost ▁an ▁exact ▁mechanical ▁copy ▁of ▁the ▁F N ▁M 1 9 0 0 . ▁The ▁return ▁spring ▁for ▁the ▁slide ▁is ▁located ▁just ▁above ▁the ▁bar rel ; ▁cart rid ges ▁are ▁e ject ed ▁off ▁to ▁the ▁right ▁of ▁the ▁weapon . ▁The ▁Lang en han ' s ▁slide ▁was ▁held ▁on ▁only ▁by ▁one ▁sc rew ▁which ▁tends ▁to ▁wear ▁down ▁and ▁r attle ▁loose ▁through ▁continuous ▁firing . ▁If ▁this ▁goes ▁un not iced , ▁the ▁slide ▁could ▁fly ▁off ▁the ▁weapon ▁and ▁hit ▁the ▁shoot er , ▁possibly ▁inj uring ▁him / her . ▁ ▁Users ▁ ▁- ▁used ▁by ▁military ▁men ▁and ▁police ▁officers . ▁ ▁References ▁ ▁Category : World ▁War ▁I ▁German ▁inf antry