H&K Heckler & Koch

HK Slide Detent Compression Spring For All HK USP & HK45, HK45C Models The detent spring is needed for positive de-cocking and safety functions of the detent plate. A spare and replacement part...

HK LEM Cocking Piece Elbow Hammer Rebound Spring This item is a common wear and replacement item for those who have LEM triggers installed. Compatible...

HK USP & USPC Bobbed Hammer - Older Style (without the cutout) This part is compatible with older USP full-size & USPC firearms that have the old-style hammer already. Perfect for those who...

Complete Bobbed Hammer DAO   Compatible With These Variants 5, 6, 7: USP 45 ACP USP Compact 9mm USP Compact 40 S&W USP Compact 357 SIG USP Compact 45 ACP HK45 HK45 Compact

HK USPC 9mm Barrel - Black

H&K SEF Selector Lock Out Safety Key You must have a special lever to use this tool. Compatible with all SEF lockout selectors.

H&K GSG-5 Rear Sight This item will fit all GSG-5 models, including the PK and P models. This item is an all-steel HK-made part designed for combat and the toughest of environments...

H&K GSG-5 Push Pin Upgrade Kit This item is a set of genuine HK German factory push pins that will upgrade all your GSG-5 rifles or pistols to quick take-down push pins. This is one of the most...

H&K SG1 Stock Rear Spacer Tube This is the longer of the two bars that goes towards the rear of the stock. No longer in production.

H&K HK G3/91/PTR F/A Complete Training Bolt Group   Surplus HK German Plastic training ammo bolt group. To be used with the readily available and cheap plastic tipped training ammo only! A...

Original German factory HK vintage date coded "IJ" 1989 manufactured bolt carrier. A rare once in a lifetime find. This is the last batch that HK ever imported or made available. Last call!Fits all:...

Super hard to find and a great spare for your HK ambi Navy trigger group. Brand new HK German.This is the factory correct and all German HK trigger box for the 3 position Navy:0,1,Full (Navy)A great...

HK German MP5 9mm Used Parts Kit Complete(Minus Receiver Of Course).All MP5 Kits:100% GERMAN PARTS HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt...

HK MR762 & 417 Take Down Tool This item is used to take down the upper receiver from the lower receiver as well as tighten down the stock movement on the E1/E2 stock. Each tool will be stored in...

HK MR556 & HK 416 Trigger Guard Retaining Pin Compatible With: HK 416 HK MR556

HK MR556, HK 416, HK MR762, & HK417 Takedown Pin Detent Spring New HK German manufacture. Detent spring for the rear takedown pin. Compatible With: HK 416 HK MR556 HK MR762 HK 417

HK MR556 & HK 416 Selector Detent Spring HK German manufacture. Compatible With: HK MR556 HK416 AR15, M4 & M16

HK 417 & MR762 Rear Diopter Sight Specifications: Fits: 12", 16.5", 17", & 20"  barrel lengths. Compatible With: HK MR762 HK 417 MR556 rifles Also made to fit the HK G28...

HK 416, MR556, & MR762 Pistol Grip Screw This is the screw used to retail all battle grips/pistol grips on the HK and standard AR15 and M16 firearms. Compatible With: HK416 HK MR556 HK...

HK 417, MR556, & MR762 Pin Look Index  

H&K HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the Free Floating Rail System (FFRS). These can become damaged with the removal of the handguard...

HK MR556 & HK416 Ejection Port Spring 

HK MR556, HK 416 & MR762 & 417 Magazine Catch Spring HK German manufacture. Compatible With: HK MR556 HK 416, M27 HK MR762 HK 417, G28 AR15, M4 & M16 firearms

HK MR556, MR762 Firing Pin Spring - German This part is great to have on hand as this item is a high wear and replacement part and one of the most common breakage parts on the HK 416/MR556 rifles...

HK MR556 Complete Bolt Group Bolt carriers will be marked ".223 Rem" or "5.56 x 45". Includes The Following HK German Factory Parts: MR556 Bolt Carrier Bolt head complete Firing pin spring Firing...

HK MR556, HK416 Threaded Pin For E1/E2 buttstock Release Lever Insert New HK German manufactured E1/E2 stock release and tightening screw that takes the slack and slop out of the stock when in...

HK MR556 & MR762 Take Down Tool For The Upper & Lower Receiver This part is the tool used to tighten down the stock movement on the E1/E2 stock. Each tool will be...

H&K HK MR556/416 Semi Auto Axle For Selector Lever HK German safe, semi selector axle for the MR 556 & HK 416 family of firearms. All steel construction.

HK MR556, MR762 Locking Pin With Spring Loaded Detent This is the rear takedown pin with ball detent and locking mechanism installed. The idea behind this type of system is to decrease the movement...

HK MR556 Locking Pin With Spring Loaded Detent This part is the front (large) takedown pin with ball detent and locking mechanism installed. The idea behind this type of system is to decrease the...

H&K HK MR556/417 Index Pin Spring  

HK MR556 & 416 Upper Receiver Threaded Piston Guide Compatible With: HK MR556 HK 416 HK M27

HK German HK 416, MR556 Floor Plate Extension Complete All steel HK Marked 30, 20 & 10 round floor plate. Each unit comes complete with with the rubber bushing installed finished in the...

HK MR556 & 416 Extractor Axle Pin This factory HK German part holds the extractor in place on the bolt head. This item needs to be changed each time it is removed per HK. Compatible With: HK...

H&K HK MR556/416 Clamping Sleeve Safety Lever There are one of the same pin on both sides.

HK German HK 416, MR556 Castle Nut For Buffer Tube New HK German manufacture. This buffer tube castle nut will fit both mil-spec and commercial buffer tubes. All steel manufacture. With HK round tool...

H&K HK MR556/416 Fire Control Detent Stop Pin HK German.

H&K HK MR556/MR762/416/417 Magazine Catch Retainer Ring Pin Compatible With: HK 416 MR556 HK 417 MR762

HK416 Full Auto Ambi Selectors Kit - German HK Each set comes complete with everything you will need to upgrade your HK 416 to an ambi selector lever set up. Factory correct German HK and all steel...

H&K HK MR556 & 416 Tungsten Recoil Buffer The proprietary tungsten HK-manufactured buffer is one of the reasons why the HK 416 and MR556 are as reliable as they are. This is the perfect...