All Parts
At HK PARTS, we bring you a wide array of high-quality H&K accessories and components for your favorite firearms. Whether you're upgrading your H&K pistol or rifle, or even looking for parts kits, we've got you covered. Discover a range of top-rated components for popular models like VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, we have it all. Enhance your firearm's performance and functionality with our premium components.
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HKP HK 53/51 (5.56/.223) Urbach Style Fluted Barrel Extension - Threaded 15x1 RH
HKP HK Parts
$149.95HKP HK 53/51 (5.56/.223) Urbach Style 8 inch Fluted Barrel Extension - Threaded 15x1 RH This 8" long fluted barrel extension is designed to extend the overall length of a 51 or 53 barrel to meet the 16" legal requirement. Ideal for those using an 8"...HKP-17638$149.95 -
HKP HK G36, G36K Folding Stock - FDE
HKP HK Parts
$109.95Folding Stock - HK G36, G36K - Full Length Stock HK G36 10.5" Stock complete for G36 firearms. The G36/G36K stock is the longest stock option for the G36 family of firearms. For those that would like a shorter stock to choose the G36C length stock. Each...HKP-19298$109.95 -
HKP HK G36K Forearm - FDE
HKP HK Parts
$109.95HK G36K Forearm With Hand Stop & Heat Shield HK G36K length latest production HK G36K handguard with built in heat shield. Each unit features a built in hand stop with sling attachment points. Built in hard mounting points for adding picatinney rails...HKP-19301$109.95 -
Sale
Magpul AR-15 CTR 6 Position Stock- Commercial
Magpul
Now: $44.95Was: $79.95Magpul AR-15 CTR 6 Position Stock - Commercial Spec The Magpul CTR (Compact/Type Restricted) Commercial-Spec Model is a drop-in replacement buttstock for AR15/M16 carbines using mil-spec-sized receiver extension tubes. The streamlined A-frame...HKP-02375Now: $44.95Was: $79.95 -
MI HK MR556/416 M-LOK Compatible 13." Carbine Handguard
MI Midwest Industries
$269.74MI HK MR556/416 M-LOK Compatible 13." Carbine Handguard Features: Made in the USA Simple installation, direct replacement for HK factory handguard Retains factory barrel nut Mil-spec top rail Seven sides of M-LOK compatible slots Lightweight, rugged...HKP-18437$269.74 -
PTR HK 93/53/33 (5.56/.223) Trigger Group - 5 U.S. 922r Parts
PTR
$389.95HK 93,33,53 5.56/.223 Semi Auto Trigger Group Complete The components that count towards 5 of the 922r compliant parts include the lower housing, trigger pack box, trigger, hammer, and sear. Includes: US Made Sear US Made Hammer US Made Trigger US Made...HKP-16259$389.95 -
RCM HK 93/53/33 (5.56/.223) Complete Bolt Head
RCM
$214.95HK 93, 33, 53 .223/5.56 Bolt Head Complete - US The latest generation style bolt head with oval shaped roller retainer plate. Perfect for 556/ .223 & 300 BLK HK or roller lock firearms. Includes: 223/556 Extractor- US Extractor Spring- HK 8mm...HKP-16722$214.95 -
Geissele HK 416 10.5" M-LOK Handguard - Black
Geissele
$499.95Geissele HK 416 10.5" M-LOK Handguard - Black The super modular rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength,...HKP-20327$499.95 -
GSG9 HK G36C (5.56/.223) 4 Prong Flash Hider - Threaded 15x1 RH
GSG9
$86.95GSG9 HK G36C (5.56/.223) 4 Prong Flash Hider - 15x1 RH Finest quality 4-prong flash hider that is threaded 15x1 right-hand twist (factory HK thread pitch). Perfect for the SL8, G36C, or other type of HK conversion. It also counts as one US-made part for...HKP-00631$86.95 -
GSG9 HK G36C Complete Pistol Parts Kit
GSG9
$1,999.95HK G36C Pistol Parts Kit Complete - US Made Complete G36C Semi-Auto Parts Kit. Includes all parts needed for a complete build aside from the receiver. Click this link to complete your build with a DEFGUNZ DEF36 receiver. 922R Compliant...HKP-18647$1,999.95 -
GSG9 HK G36C Forearm - Black
GSG9
$126.95HK G36C Handguard With Heat Shield & Hand Stop New GSG9 manufactured forearm with heat shield & hand stop fits all HK G36C's or SL8/G36 conversions sized for the G36C barrel. Each unit also features the hand stop with sling attachement points...HKP-18216$126.95 -
Out Of Stock
H&K 21E/23E (7.62x51/.308 & 5.56/.223) 4 Position Trigger Housing
H&K Heckler & Koch
$0.00H&K 21E/23E (7.62x51/.308 & 5.56/.223) 4 Position Trigger Housing This 4 position trigger housing is designed for factory HK21E and HK23E firearms. It is an excellent spare to have on hand for your HK belt-fed firearm, providing reliable...HKP-00248$0.00 -
H&K 93/53/33 (5.56/.223) Firing Pin
H&K Heckler & Koch
$69.95H&K 93, 53, & 33 (5.56/.223) Firing Pin This is the factory-correct HK German firing pin and is a great replacement part. This is also a great upgrade for your HK 223.556 clones. This part is no longer available from HK as this part is out of...HKP-00192$69.95 -
H&K 93/53/33 (5.56/.223) Surplus Fixed Stock - A2 - OD Green
H&K Heckler & Koch
$139.95Surplus - Fixed Stock - OD Green - HK93,33,53 Hand-picked stocks in excellent condition. Comes with matching buttpad. Ready to install on your HK or clone rifle. German military surplus, but handpicked to give you the best of the offerings. Features: HK...HKP-18888$139.95 -
H&K G36/SL8 (5.56/.223) Barrel Retaining Nut
H&K Heckler & Koch
$29.95HK G36 & SL8 Barrel Retaining Nut - German HK Compatible With: SL8 (all models and variants) G36E G36K G36C All other G36 VariantsHKP-16341$29.95 -
H&K G36K Extended Handguard Picatinny Rail - Black
H&K Heckler & Koch
$149.95HK G36K German Factory Picatinny Extended Bottom Rail Fits all HK G36K newer style handguards with the rail attachment points. This is the full-length version for a full-length bottom rail for the G36K forearm. New HK German manufacture.HKP-01137$149.95 -
H&K HK 416, HK MR556 Folding Front Sight For Hanguard
H&K Heckler & Koch
$134.95Folding Front Sight - German - HK 416, MR556 Handguards German HK built in folding front sight for the forearms/handguards.HKP-19462$134.95 -
H&K HK G36, SL8 Red Dot Kit For Dual Optic
H&K Heckler & Koch
$899.95HK G36, SL8 Red Dot - Brand new HK German OEM Factory HK G36/SL8 top red dot brand new with factory battery installed. This is a top red dot section for the Red Dot. This can be used to replace worn or broke dual optics as well as it could be made...HKP-19552$899.95 -
H&K HK SL8, HK G36 Top Rail Screw
H&K Heckler & Koch
$14.95HK SL8 & G36 Top Rail Screw This rail screw is the standard length rail screw used for all SL8 and G36 top rails. With the exception of the dual and single option models. A must have part and an easy part to loose or strip. Grab yours to have...HKP-16390$14.95 -
Out Of Stock
HKP HK MR556/416 Rear Sight Drum 10" Barrel Length
HKP HK Parts
$29.95HKP HK MR556/416 Rear Sight Drum 10" Barrel Length Made in the USA.HKP-17774$29.95 -
Magpul AR-15 CTR 6 Position Stock - Mil-Spec
Magpul
$79.95Magpul AR-15 CTR 6 Position Stock The Magpul CTR (Compact/Type Restricted) Mil-Spec Model is a drop-in replacement buttstock for AR15/M16 carbines using mil-spec-sized receiver extension tubes. The extra-power lock mechanism uses a premium...HKP-01031$79.95 -
PTR HK 93/33 (5.56/.223) Barrel - Threaded 15x1 RH
PTR
$163.95PTR HK 93/33 (5.56/.223) Barrel - Threaded 15x1 RH New US made Barrel by PTR for the HK93,33 style of firearms. Specifications: Made In The USA 922r Compliant Counts as 1 US Made Part Overall length 16.1" 4140 Ordnance Grade Steel Threaded 15x1 RH 1:9...HKP-16458$163.95 -
B&T HK416, HK MR223 M-LOK Handguard for (11") with Overgrip - Coyote Tan
B&T Brugger & Thomet
$279.95B&T M-LOK Handguard OG for HK416/MR223 (11") with "Overgrip" Free-Cut on the Top Rail B&T's one-piece 11" M-LOK handguard for the Heckler & Koch HK416 and MR223 rifles is a solid upgrade for these HK rifles. The handguard is an easy to...HKP-20401$279.95 -
Sale
Blade-Tech HK 416 Magazine RH Pouch - Black
Blade-Tech
Now: $29.95Was: $44.95HK 416 Magazine Pouch - Right Hand Positive magazine retention without cumbersome flaps. Fully adjustable with tensioning screws. For a right-hand shooter. Features: Custom-modeled Kydex construction Fully adjustable with Tek-Lok locking...HKP-15157Now: $29.95Was: $44.95 -
H&K 93/53/33 (5.56/.223) Complete FBI Trigger Group - Clipped & Pinned
H&K Heckler & Koch
$749.95H&K 93, 53, & 33 (5.56/.223) Complete FBI Trigger Group - Clipped & Pinned Genuine Heckler and Koch German Parts.HKP-00019$749.95 -
H&K 93/53/33 (5.56/.223) Match Trigger Pack With Enhanced Trigger - 4.5lb
H&K Heckler & Koch
$474.95H&K 93/53/33 (5.56/.223) Match Trigger Pack With Enhanced Trigger - 4.5lb HK German SEMI HK 93 .223 & 5.56 trigger pack complete with custom trigger conversion to a light target trigger & ultra-smooth 4.5-5.0 LB. pull Each trigger pack has...HKP-17590$474.95 -
Out Of Stock
H&K G36/SL8 (5.56/.223) Dual 3x Optic Carrying Handle
H&K Heckler & Koch
$2,899.95HK G36, SL8 Dual Optic Rare in brand NEW condition. Brand new factory fresh HK G36/SL8 3X dual optic. In all the years, of offering HK parts and accessories...we have never been able to get brand new dual optics directly from HK Germany. Update: HK...HKP-17606$2,899.95 -
H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin
H&K Heckler & Koch
$10.95H&K G36/SL8 (5.56/.223) Firing Pin Retaining Pin Compatible With: HK G36 HK SL8HKP-02469$10.95 -
H&K HK G36C Extended Bottom Rail - Black
H&K Heckler & Koch
$99.95HK German Extended Bottom Rail For Forearm 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 required for the installation.HKP-01648$99.95 -
H&K HK G36C Forearm - Black
H&K Heckler & Koch
$139.95HK 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 SL8-G36C conversionsHKP-00620$139.95 -
Out Of Stock
H&K HK MR556 Complete Bolt Head
H&K Heckler & Koch
$329.95New HK German MR556, Bolt Head CompleteBrand new factory German bolt head with all the components to make the bolt head complete. HK MR556HKP-02712$329.95 -
$19.95 -
H&K HK MR556/416 Ejector Spring
H&K Heckler & Koch
$39.99HK 416 & MR556 Ejector Spring Compatible With: HK 416 HK MR556HKP-02538$39.99 -
Sale
HK 23E Print
XrayGuns
Now: $29.95Was: $59.9510" X 20" High Resolution Black And White X-Ray Print Of The HK 23E. These prints were developed by a radiologist who's passion for Heckler and Koch firearms inspired him to utilize his $750,000 CAT scanning machine to X-Ray his favorite firearms. ...HKP-16956Now: $29.95Was: $59.95 -
Out Of Stock
HKP G36K Barrel Front End Kit
HKP HK Parts
$889.95G36K Barrel Front End Barrel Kit - 223/556 New production HK G36K style barrel conversion and front end kit. Each kit will include the necessary parts to build a G36/SL8 variant into the G36K barrel length variant as pictured. All you need is this kit to...HKP-18225$889.95 -
$249.95 -
HKP HK MR556/416 Rear Sight Drum 14.5&" & 16" Barrel
HKP HK Parts
$29.95HKP HK MR556/416 Rear Sight Drum 14.5&" & 16" Barrel Made in the USA.HKP-17775$29.95 -
KDG HK MR556 13.75" M-LOK Rail System - FDE
KDG Kinetic Development Group
$399.95Rail System - 13.75" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like...HKP-19243$399.95 -
MM HK 23E (5.56/.223) Saw Feed Box Adapter
Michaels Machines
$249.95Saw Box (M249) Adapter For HK23E Or MM23E Belt FedsHKP-02072$249.95 -
Out Of Stock
Tommy Built HK G36 AR Stock Adapter
Tommy Built
$249.95Tommy Built HK G36 AR Stock Adapter G36 Hinge with AR Buffer Tube Mount. This can be used to adapt various AR Style Stock and Braces to the HK G36 Receiver Hinge.HKP-18852$249.95