▁the ▁device ▁push es ▁the ▁surface ▁area ▁of ▁objects ▁away ▁from ▁the ▁slide , ▁thus ▁increasing ▁the ▁chance ▁that ▁the ▁gun ▁will ▁function ▁normally . ▁ ▁After ▁heat ▁treatment ▁the ▁metal ▁parts ▁are ▁finished ▁with ▁a ▁propriet ary ▁nit rid ing ▁process ▁called ▁Ten ifer ▁Plus + . ▁This ▁finish ▁is ▁character ized ▁by ▁extreme ▁wear ▁and ▁cor ros ion ▁resistance ; ▁it ▁pen etr ates ▁the ▁metal , ▁and ▁treated ▁parts ▁have ▁similar ▁properties ▁even ▁below ▁the ▁surface ▁to ▁a ▁certain ▁depth . ▁The ▁Ten ifer ▁Plus + ▁process ▁produces ▁a ▁mat te ▁gray - color ed , ▁non - g lare ▁surface ▁with ▁a ▁ 6 4 ▁Rock well ▁C ▁hard ness ▁rating ▁and ▁a ▁ 1 , 2 0 0 – 1 , 3 0 0   N / mm 2 ▁tens ile ▁strength . ▁This ▁finish ▁makes ▁the ▁H S 2 0 0 0 ▁particularly ▁suitable ▁for ▁conce aled ▁carry , ▁as ▁the ▁highly ▁ch lor ide - res istant ▁finish ▁allows ▁the ▁p istol ▁to ▁better ▁end ure ▁the ▁effects ▁of ▁pers p iration . ▁ ▁The ▁H S 2 0 0 0 ▁has ▁a ▁g rip ▁safety ▁that ▁will ▁not ▁allow ▁the ▁p istol ▁to ▁fire ▁without ▁de press ing ▁a ▁lever ▁on ▁the ▁rear ▁of ▁the ▁g rip . ▁This ▁feature ▁is ▁present ▁on ▁some ▁older ▁p ist ols ▁such ▁as ▁the ▁M 1 9 1 1 . ▁Un like ▁the ▁ 1 9 1 1 , ▁the ▁g rip ▁safety ▁on ▁H S 2 0