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, 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 MP5 SD Sealing Ring - Enhanced
HKP HK Parts
$9.95The enhanced sealing ring is made from a newer longer lasting material as well as having a slightly thicker profile for secure sealing and longer longevity. Each HK MP5 SD sealing ring is the sealing gasket that seals the SD suppressor against the...HKP-18053$9.95 -
PTR HK 91/G3 (7.62x51 / .308) Receiver Flat
PTR
$99.95HK G3, 91, PTR & CETME Flat - PTR Made by PTR with original HK tooling using factory specifications and a properly stamped receiver. No FFL is required as this is an unfolded flat that ships directly to the customer...HKP-02320$99.95 -
On Sale
H&K HK Black Ripstop Hat - Black
H&K Heckler & Koch
Now: $8.99Was: $11.95Factory HK Black Ripstop Hat with Red Logo HK ripstop hats are lightweight with a modern tech look that's simple but sporty. Available in three colors: Black, Tan and OD Green. Black Hat - Red trim with red embroidered HK logo Adjustable Velcro BackHKP-13905Now: $8.99Was: $11.95 -
H&K HK MP5K SEF Navy Push Pin Style Housing - Like New
H&K Heckler & Koch
$99.95HK German SEF MP5K “Navy Style” Push Pin SEF Trigger Housing- Like New HK German factory date coded SEF grip frame that has been cut to MP5K factory German specs. This style of housing is for push pin firearms that do not require a clipped...HKP-20576$99.95 -
Magpul HK MP5/SP5, HK94 SL Stock - Black
Magpul
$159.95Magpul - SL Stock - MP5, SP5 The Magpul SL Stock HK94/MP5, SP5 delivers the modern qualities found in our original MOE SL® Carbine Stock for AR15/M4 carbines to MP5-pattern rifles. Durable, lightweight, and collapsible, the SL incorporates Magpul...HKP-20023$159.95 -
H&K MP5 , HK94 Factory A3 Stock
H&K Heckler & Koch
$939.95H&K MP5 , HK94 Factory A3 Stock The original Navy-style German HK MP5 A3 stock is no longer in production and is quite hard to find as they have been replaced with the MP5 F-style stock. Each offering is the second generation MP5 A3 Navy-style...HKP-00167$939.95 -
H&K 91/G3 (7.62x51 / .308) Wood Stock - Surplus
H&K Heckler & Koch
$119.95HK German G3, 91, PTR Wood Stock Complete - USEDEach stock includes: Metal Backplate With Recoil Spring Installed Buffer Assembly Complete Wood Stock Section With ButtpadComplete rear stock for HK91/G3, PTR. These stock sets were in use with the German...HKP-02554$119.95 -
H&K HK 93/53/33 (5.56 / .223) 30 Round Magazine - Steel
H&K Heckler & Koch
$80.00HK93, HK33, & HK53 - 30 Round Magazine HK Factory German. All-steel latest production magazine and hard to find. This magazine was discontinued in 2021 and is no longer in production. Stock up as we have the last remaining units available...HKP-00484$80.00 -
H&K Cocking Tube Hanger Clip
H&K Heckler & Koch
$13.95H&K Cocking Tube Hanger Clip The HK cocking tube support hanger is the part that welds onto the end of the cocking tube that allows the forearm to install with the use of a small push pin. New HK German factory manufactured. Ready to weld onto your...HKP-00349$13.95 -
HKP HK USP, HK P2000, HK 45C Enhanced Magazine Release - Black
HKP HK Parts
$49.95Enhanced Magazine Release - Black - HK USP, P2000, HK45CNew HK Parts Enhanced and Over-sized Magazine Release. The over-sized magazine release increases the overall surface area and makes it possible to release the magazine without changing the position...HKP-19287$49.95 -
H&K 91/G3 (7.62x51 / .308) Extractor
H&K Heckler & Koch
$13.95HK German HK G3, HK, 91 & PTR 91 .308 Extractor New HK German. The G3 is out of production and this small lot of new old stock extractors is available at the best price in the country. Fits all models of HK G3 style firearms and CETME's. Compatible...HKP-00495$13.95 -
HKP 1st Gen Roller Retainer Plate To Spring Upgrade
HKP HK Parts
$9.95HKP 1st Gen Roller Retainer Plate To Spring Upgrade This action 3 roller retainer spring for all 1st Generation bolt heads replaces the oval-shaped roller retainer plate. HK made a wire spring as an upgrade for later production bolt heads to improve the...HKP-02119$9.95 -
HKP MP5K to SD Shroud
HKP HK Parts
$119.95MP5K SD Shroud For SP89 & MP5K Conversion A great offering for those who want to build a custom MP5K SD model. Made in the USA.HKP-00849$119.95 -
HKP Roller +8 - New - 8.08mm
HKP HK Parts
$8.99Roller +8 - New - 8.08mmHK Parts Standard (8.08 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture.Price is per roller.**You need to order two for a complete set (pair) for bolt head.**HKP-19437$8.99 -
On Sale
Sig Sauer SIG P365 X-Macro 17-Round 9mm Magazine - Black
Sig Sauer
Now: $39.95Was: $59.95Sig Sauer 17 Round OEM Magazine - 9mm - Fits: P365 Macro Factory 17-round steel magazine for the P365-XMACRO pistol. This magazine includes rear witness holes to confirm loaded capacity and an orange follower making it easy to identify when...HKP-20558Now: $39.95Was: $59.95 -
B&T MP5 Folding Stock
B&T Brugger & Thomet
$319.95B&T Folding Stock For All MP5 Full Size Variants Swiss-made B&T folding stock for the MP5 & HK94. This is a military-grade stock as supplied by B&T to HK Germany. B&T Switzerland has supplied these to law enforcement and...HKP-00460$319.95 -
H&K +2 Roller For Bolt Head 8.02mm - Over-sized
H&K Heckler & Koch
$24.95H&K +2 Roller For Bolt Head 8.02mm - Over-sized New HK standard (8.02 mm) locking roller. The proper roller size is essential for a proper bolt gap. New HK German, not surplus or used out-of-spec part. Please note: The price listed is per roller...HKP-00507$24.95 -
H&K MP5 & MP5K F Style Roller Retainer Plate - 3rd Gen
H&K Heckler & Koch
$14.95HK German "F" Style 3rd Gen Roller Retainer Plate This is the latest and greatest German design of roller retainer plates found in all of the latest production of HK German bolt heads. The MP5 F roller retainer plate fits true F-style bolt heads only...HKP-00069$14.95 -
H&K HK VP9/Tactical 13.5 X 1 9mm Threaded Barrel - Black
H&K Heckler & Koch
$284.95Precision made in Germany by HK from cold hammer forged (CHF) ordnance grade steel. This barrel offering is the finest threaded HK factory barrel available for the HKVP9 or VP9 Tactical pistol. The perfect barrel for use as a spare or for adding threaded...HKP-17995$284.95 -
H&K Magazine Catch Spring
H&K Heckler & Koch
$4.95H&K Magazine Catch Spring New HK German manufacture, not used, worn out surplus springs. Perfect spare and a must-have mag catch spring for all 90 series rifles that use a detachable magazine. Compatible with: HK 91, G3 &...HKP-01917$4.95 -
HK UMP/USC (.40 S&W/.45 ACP/9mm) Recoil Buffer
$11.95HK USC & UMP Recoil BufferReplaceable Spare Lower Housing Or Buffer For Buffer Housings. This Is A High Wear & Replacement Item And A Must Have For Spare Parts. Fits ALL UMP & USC Lowers. HK USC .45 HK UMP modelsHKP-18746$11.95 -
HKP Vertical Grip - Picatinny Mount - Short
HKP HK Parts
$29.95Stubby Vertical Grip For Picatinny Rail- HK Style This grip is by far the nicest shorter style or stubby grip we have encountered for the money. This rock solid grip is a must have for anyone that uses a vertical grip. This is the only vertical grip out...HKP-16409$29.95 -
H&K 10 Round HK USPC/P2000 9mm Flat Floorplate Magazine - Black
H&K Heckler & Koch
$49.00H&K 10 Round HK USPC/P2000 9mm Flat Floorplate Magazine - Black Perfect for concealed carry as the floor plate is flush rather than extended. New HK German mag. Compatible with: HK USP Compact 9mm HK P2000 9mm HK P2000 SK 9mm (will extend below the...HKP-01476$49.00 -
H&K HK MR556/416 Gas Block Roll Pin
H&K Heckler & Koch
$7.95HK 416 & MR556 Gas Block PinThis is the retaining pin for an HK 416 gas block. A must have as HK says you have to use new pins once they are removed.5 x 18 mmHKP-02534$7.95 -
Maglula Universal Magazine Loader
Maglula
$34.95This loader we feel is the finest loader available for the wide variety of the HK pistol magazines. Will also work with Glock, Sig, XD, and most other pistol magazines. A must have for every shooter. Makes all reloads faster and easier on the...HKP-14531$34.95 -
On Sale
Magpul AR-15 PMAG 30-Round 5.56 / .223 Magazine
Magpul
Now: $8.95Was: $14.95Magpul Original Equipment (MOE) is a line of firearm accessories designed to provide a high-quality, economical alternative to standard weapon parts. The MOE line distinguishes itself with a simplified feature set, but maintains Magpul engineering and...HKP-14559Now: $8.95Was: $14.95 -
Out Of Stock
H&K MP5K/SP89/SP5K 9mm HK Marked Folding Stock
H&K Heckler & Koch
$399.95HK Marked MP5K, SP5K, SP89 & MP5K-N, PDW Folding Stock This is the original "HK" logo marked HK factory stock, found on all HK German MP5K's or PDW's. Each stock is marked HK and uses the HK German backplate/buffer factory assembly. Overall Length is...HKP-00391$399.95 -
Out Of Stock
HKP Paddle Style Extended Mag Release - EMR
HKP HK Parts
$44.95HKP Paddle Style Extended Mag Release - EMR A great addition to any paddle style mag release, such as those found on an HK. The extended mag release is machined from a solid billet of aircraft grade aluminum and hard anodized aluminum for a lightweight...HKP-17079$44.95 -
H&K 91/G3 (7.62x51 / .308) Rear Sight Assembly - New
H&K Heckler & Koch
$39.95HK German G3, 91, PTR Rear Sight Assembly Complete - New HKHK German factory rear sight assembly with all hardware included. We offer the finest new HK sights at the BEST price in the country. Each set comes complete with all parts and all mounting...HKP-18163$39.95 -
Out Of Stock
H&K 9mm Barrel Flute Cleaning Brush
H&K Heckler & Koch
$0.00This HK manufactured brush is a must have for the proper care of your HK 9mm Rifle/Pistol as the flutes need to be clean and free of carbon for proper function. A must have cleaning tool to have on hand and to save time and money. Take care of gear and...HKP-00138$0.00 -
H&K MP5 & MP5K Style Firing Pin Spring
H&K Heckler & Koch
$26.95H&K MP5 & MP5K Style Firing Pin Spring The latest style of firing pin available is stronger and much more durable than the standard non-braided firing pin. Compatible with: MP5, HK94, SP5 MP5K, SP5K, SP89 MP5/40, MP5 10mm, MP5...HKP-00063$26.95 -
HKP MP5, MP5K Front Sight Tower Assembly
HKP HK Parts
$54.95New US made from a solid billet of ordnance grade steel. Each front sight tower, triple frame set comes complete with a new HK diopter style replaceable front sight post & roll pin. This is the complete set made to the highest tolerances. No ugly...HKP-17792$54.95 -
HKP Roller +6 - New - 8.06mm
HKP HK Parts
$8.99Roller +6 - New - 8.06mmHK Parts Standard (8.06 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture.Price is per roller.**You need to order two for a complete set (pair) for bolt head.**HKP-19439$8.99 -
X-Grip HK USPC/P30 Magazine Adapter - Black
X-Grip
$15.95The XGRIP HKUSPC is a new patent pending OEM factory accessory for the HK USP Compact that enhances the versatility, look, and feel of the gun.Versatility: Size of a Compact, Capacity of a Full-Size. The XGRIP adapts the HK P30 hi capacity magazine for...HKP-16671$15.95 -
H&K HK VP9/VP9SK/P30/45 Clamping Pin Backstrap
H&K Heckler & Koch
$5.95Dowel Pin Or Clamping Pin This HK roll pin is used to hold the backstrap in place. Compatible with: HK45 HK45 Compact HK P30 HK P30L HK P30SK HK VP9 HK VP9SKHKP-01810$5.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Rear Stock Axle Pin - Swiss
Swiss
$14.95Swiss made UMP stock axle pin. This Is The Rear Stock Pin That Allows You Attach The Stock To Either The Factory Receiver Of A UMP or For Those That Are Doing The USC to UMP Conversion. This Is Required To Attach The Stock To The Needed Stock Block...HKP-02591$14.95 -
H&K UMP (.45 ACP) 25 Round Magazine
H&K Heckler & Koch
$95.95New HK German Non-LE/Mil Marked UMP .45 ACP 25 Round Magazine The UMP .45 magazines will fit all UMP factory firearms as well as the USC's that have been converted to accept UMP magazines. Compatible with: HK UMP .45 HK USC to UMP . 45 conversions HK...HKP-00605$95.95 -
Grayguns HK P30, P2000 Short Reset System Thumb Safety
Grayguns
$90.00Replicate our custom in-house short reset conversion with a drop-in kit for your HK P30 with thumb safety. Cut from bar stock steel, these kits provide an exacting fit for easy install.The kit shortens the reset travel distance by about one-third,...HKP-19756$90.00 -
HK, Walther, Colt, .22LR Barrel Adapter O-Ring
USA
$2.95HK, Walther, Umarex 416, Colt M4 or MP5-A5 .22 Barrel Adapter O-Ring. Made from the highest quality & very durable Viton material. The O-ring on the adapter can tear with use or become brittle over time. Be sure to grab a few extra rings with your...HKP-17379$2.95 -
HKP Binary Selector Lever Set Screw
HKP HK Parts
$1.98This replacement screw is to mount your Franklin Armory BFS selectors. A great spare screw to replace damaged screws or lost screws as they are small in dimension and very easy to misplace. A must have set screw to keep your Binary trigger group going...HKP-20686$1.98