▁of ▁a ▁double ▁action ▁only ▁ham mer ▁system . ▁ ▁The ▁ag ency ▁has ▁a ▁list ▁of ▁personally ▁owned ▁weapons ▁that ▁are ▁author ized ▁for ▁duty ▁and ▁off ▁duty ▁carry . ▁ ▁These ▁weapons ▁must ▁be ▁ins pected ▁and ▁approved ▁by ▁the ▁ag ency ’ s ▁fire ar ms ▁unit . ▁ ▁The ▁agent ▁and / or ▁officer ▁must ▁qual ify ▁with ▁the ▁weapon ▁once ▁a ▁quarter . ▁ ▁Other ▁weapons ▁Ag ents ▁and ▁Offic ers ▁are ▁trained ▁on ▁standard ▁shoulder ▁fired ▁weapons ▁that ▁include ▁the ▁M 4 ▁car bine , ▁chamber ed ▁for ▁▁ 5 . 5 6 × 4 5 mm ▁NAT O ▁am mun ition ▁and ▁the ▁ 1 2 - g au ge ▁Rem ington ▁ 8 7 0 ▁shot gun . ▁ ▁As ▁non - le th al ▁options , ▁Special ▁Ag ents ▁and ▁Offic ers ▁are ▁armed ▁with ▁the ▁expand able ▁metal ▁b aton ▁and ▁pe pper ▁sp ray . ▁ ▁Trans n ational ▁gang s ▁ ▁In ▁February ▁ 2 0 0 5 , ▁I CE ▁began ▁Operation ▁Community ▁Sh ield , ▁a ▁national ▁law ▁enfor cement ▁initi ative ▁that ▁targets ▁violent ▁trans n ational ▁street ▁gang s ▁through ▁the ▁use ▁of ▁I CE ' s ▁broad ▁law ▁enfor cement ▁powers , ▁including ▁the ▁unique ▁and ▁powerful ▁authority ▁to ▁remove ▁criminal ▁imm igr ants , ▁including ▁illegal ▁imm igr ants ▁and ▁legal ▁permanent ▁residents . ▁ ▁Im m igration ▁law ▁Im m igration ▁and ▁National ity ▁Act ▁Section ▁ 2 8 7 ( g ) ▁allows