H&K Heckler & Koch

HK G36, SL8 & USC, UMP Rear Sight Screw Rear sight screw to retain HK G38/Sl8 & USC/UMP rear sights housings to the rear sight base. Compatible With: G36, SL8 USC, UMP

HK G36 Folding Stock Release Spring This is the spring that fits under the stock release button to activate the folding and retention of the G36 or UMP stock. Compatible With: HK G36 HK G36K HK...

HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.  

H&K UMP/USC/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Hand Stop Filler Piece HK German Hand Stop filler piece for UMP and G36.

HK G36, SL8, USC, & UMP Compression Spring For Index Plate - Lower  

G36 & HK UMP Hammer For Lower Or Trigger Group 

HK G36C Stock Assembly Complete - German Genuine German Heckler & Koch G36C stock assembly. One full inch shorter than the standard G36 stock. This is the preferred stock for average-height users...

HK German G36C Gas Piston Rod & Spring Assembly - Complete A must-have item for HK G36C conversions from G36 to SL8's or for spares for your G36C. New HK German factory OEM part. A high wear and...

HK German G36C Handguard With Heat Shield & Hand Stop Each unit features the hand stop locations for adding rails to the left, right, and bottom should you choose to. Compatible With: HK G36C HK...

G36C Slim line handguard with Hkey mounting slots HK German G36C forearm with HKey mounting slots. Made in Germany.

HK German Extended Bottom Rail for Handguard This part provides a full-length mounting rail along the entire bottom of the G36C Forearm. This item is factory HK and comes with all mounting hardware...

HK G36C Tri-Rail ForearmNew HK German Factory G36C Forearm with both left & right side rails, bottom rail, and hand stop included. This new style forearm also comes with the heat shield...