H&K Heckler & Koch

HK German Hand Stop Unit Complete  This unit is compatible with any of the USC/UMP or the G36K or G36C handguards.  

HK UMP, USC & G36 Trigger New HK German factory trigger. A great spare or replacement part. Compatible With: HK G36 HK UMP HK USC

H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Rear Sight Support

HK Index Plate For All UMP, USC, G36, & SL8 Lowers Compatible With: HK UMP HK USC HK G36 HK SL8

HK Ratched Wheel, Notched Disk G36, SL8 0,1 (Safe & Fire) Only Compatible With: 0,1 or S,F only: HK UMP HK USC HK G36 HK SL8

Safe, Semi 0,1 Only HK UMP, USC, G36, & SL8 Right Side Safety Control Lever Constructed from durable black polymer, this factory original part from HK is made in Germany and specifically designed...

Heckler and Koch HK UMP40 Bolt Group - Semi-Auto - 40 S&W - USED ONLY 3 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Complete factory HK bolt group for semi-automatic UMP...

New HK German Rifle Hammer Spring For All.308/.223 Semi & Full Auto Trigger Packs The 308/556 hammer spring is a popular upgrade to replace the hammer spring in 9mm and clones that have light...

HK Factory Harris Bipod Adapter - Low Profile This adapter is to attach the Harris bipod to any Picatinny rail. It is compatible with all Picatinny railed forearms or applications. A new HK German...

HK Factory Harris Bipod Adapter - Low Profile - RAL 8000 This adapter is used to attach the Harris bipod to any Picatinny rail. Fits all picatinny railed forearms or applications. Features the lowest...

HK Universal Polymer Rail With Screws for the G36E, SL8, USC, UMP   HK German manufacture. New universal picatinny rail for forward section or forearm.   Compatible With: G36E SL8 USC UMP...

HK German Factory 10 Round USC .45 Magazine This is the only magazine that HK offers for HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible with all HK USC Carbines.