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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H&K MP5, SP5 4 Position 0,1 Trigger Group - Universal Trigger group
H&K Heckler & Koch
$1,999.95H&K MP5, SP5 4 Position 0,1 Trigger Group - Universal Trigger group New HK German MP5, SP5 9mm 4 Position Burst (0,1,3, F) Trigger Housing professionally clipped & pinned and paired with a factory German MP5 trigger pack ready for your semi-auto...HKP-16725$1,999.95 -
H&K Spare Parts Kit Pouch
H&K Heckler & Koch
$9.95H&K Spare Parts Kit Pouch Empty pouch for spare parts or other suppliesHKP-20620$9.95 -
H&K USC (.45 ACP) Carbine Mag Release
H&K Heckler & Koch
$19.95H&K USC (.45 ACP) Carbine Mag Release This is a great replacement as they are prone to breakage & wear. Please Note: For those that have a USC with a bullet button and are moving to a free state and want to revert back to the...HKP-02196$19.95 -
H&K USPC .45 ACP Barrel - Threaded 16x1 LH
H&K Heckler & Koch
$345.95H&K USPC .45 ACP Barrel - Threaded 16x1 LH This H&K USPC .45 ACP barrel features a threaded 16x1 LH design, ideal for enhancing your firearm. Made from cold hammer-forged steel with polygonal rifling, it ensures durability and precision. The...HKP-00320$345.95 -
Heinie Optics Ready HK VP9 Ledge Straight Eight Set for Suppressor 2020
Heinie
$205.95Heinie Optics Ready HK VP9 Ledge Straight Eight Set for Suppressor 2020 This sight set features our rear Ledge design. The military inspired sight design combines the best features of our Classic and SlantPro with a few of its own that sets it apart from...HKP-19998$205.95 -
Out Of Stock
HK VP9SK 9mm Fluted Barrel - Threaded 1/2x28
USA
$229.95HK VP9SK 9mm Tactical Barrel - Threaded 1/2x28 Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished inside and out with a highly desirable nitride coating. The barrel features an aesthetically pleasing fluted design...HKP-18419$229.95 -
HKP HK 93/53/33 (5.56/.223) Receiver Flat With Weldment Set
HKP HK Parts
$229.95HK .223, 556, & 300 BLK Receiver Flat With Complete Weldment Set Combo Each flat and weldment set comes with 223/556/300BLK complete as a builders combo ready to assemble. Compatible With: HK93, HK33, & HK53 Style Builds 300...HKP-00006$229.95 -
HKP HK G3, HK 91, PTR 91 Spare Parts Kit
$149.95HKP HK G3, HK 91, PTR 91 Spare Parts Kit Spare parts kits for the most commonly worn parts needed to keep your HK G3 going. This offering also includes a pouch to safely store all your replacement parts and needed tools to have on hand when required...HKP-20684$149.95 -
HKP HK P30L MOD 1 Compensator - Black
HKP HK Parts
$189.95HK Parts MOD 1 Compensator: H&K P30L The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker. Each MOD 1 comp includes...HKP-21221$189.95 -
Magpul/HKP HK MP5 ACR Stock
Magpul
$599.95HK MP5 ACR Stock: Our new aircraft grade aluminum MP5 ACR adapter is now offered in this combo stock unit. Pre installed and ready to drop in. With this MP5 ACR combo stock you will add the capability of an adjustable cheek rest and length of pull. With...HKP-21370-M$599.95 -
PTR HK 91/G3 (7.62x51/.308) M4 Stock Complete
PTR
$234.95PTR HK 91/G3 (7.62x51/.308) M4 Stock Complete AR15/M16 retractable stock combo set up for use on an HK91, G3 & PTR91 style of rifles. This is a perfect compliment for those that want to use an AR M4 style stock on your HK rifle or SBR. Each stock set...HKP-16142$234.95 -
PTR HK 91/G3 (7.62x51/.308) Tactical Forearm
PTR
$149.95New 2nd Generation- HK Black Matte Finish PTR, HK91, G3 Forearm Made from aircraft-grade aluminum, rock-solid, and lightweight. This forearm allows you to add up to 3 rails on your firearm. That includes the left, right, as well as bottom sides,...HKP-00368$149.95 -
Out Of Stock
Tommy Built G36 AR/Stanag Magwell - Black
Tommy Built
$249.95Tommy Built G36 AR/Stanag Magwell - Black Stanag/AR Magwell for the G36/SL8 Platform. This replacement magwell allows the use of standard AR15 Style Magazines. This is a direct magwell swap and should not require any modification or special tools. These...HKP-19171$249.95 -
Comp-Tac HK VP9/VP9L/Match International LH Holster - Black
Comp-Tac
$79.95Comp-Tac HK VP9/VP9L/Match International LH Holster - Black One holster to fit your entire VP9 Lever collection, including your VP9 Match. Comp-Tac has worked with HK Parts to develop a flexible holster to fit your needs- whether you have the VP9 Match,...HKP-20012$79.95 -
Out Of Stock
Geissele HK 416 Super Modular M-LOK 14.5" Rail - Black
Geissele
$499.95Geissele HK 416 Super Modular M-LOK 14.5" Rail - Black The Super Modular Rail HK416 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-19806$499.95 -
GSG9 HK G36, HK G36K, HK G36C Full Auto Tungsten Filled Bolt Carrier - Black
GSG9
$549.95HK G36 Tungsten Filled - Bolt Carrier Complete - Full Auto Compatible With: G36 G36K G36C Will NOT work with a factory HK SL8HKP-19030$549.95 -
H&K 20 Round HK VP40, HK VP40 Tactical, HK P30, HK P30L, HK P30S .40 S&W Magazzine - Red
$89.95H&K 20 Round HK VP40, HK VP40 Tactical, HK P30, HK P30L, HK P30S .40 S&W Magazzine - Red HK Parts +7 magazine extension coupled with a 13 round .40 cal factory German magazine body adds 7 additional rounds. For a total fully assembled hand fitted...HKP-20183$89.95 -
H&K 91/G3 (7.62x51/.308) F/A Bolt Carrier - Tungsten Filled - Surplus
H&K Heckler & Koch
$249.95HK Factory F/A Tungsten Filled Bolt Carrier Used German Surplus The tungsten upgrade is ideal for those with bolt bounce issues or who want the smoothest carrier for FA use. These carriers are all used and in good shape and need to be...HKP-01998$249.95 -
H&K 91/G3 (7.62x51/.308) Firing Pin Spring - Used
H&K Heckler & Koch
$4.95H&K 91/G3 (7.62x51/.308) Firing Pin Spring - Used This is a common repair and replacement item. Grab one for a spare, just in case.HKP-16711$4.95 -
H&K 91/G3 (7.62x51/.308) Slimline Forearm - Black - Used Good
H&K Heckler & Koch
$17.45Used Authentic German Military Surplus Black Slim Line Forearm With Heat Shield Very good condition. For the money, these are a nice addition to the collection. Compatible With: all full forearm length HK 91, G3, PTR style firearmsHKP-18316$17.45 -
H&K 91/G3/MSG90 (7.62x51/.308) 2x20 Round Aluminum Mags W/ Cloth Mag Pouch - Flectarn
H&K Heckler & Koch
$49.952x20 Round Aluminum Mags W/ New Cloth Mag Pouch - Flectarn Compatible With: HK 91 HK G3 HK PSG-1 HK MSG-90 PTR-91 Vector 51 Century HK 308 clones Other custom HK91/G3 style builds or custom clonesHKP-14550$49.95 -
H&K G3 Operators Manual
HKP HK Parts
$21.95HK G3, 91, PTR Operators Manual The G3 Operators Manual is for the Full Auto version of the HK91. Page-by-page translation of the original German Army instruction manual for the G3 family of firearms. With 120 pages and six full-color illustrations...HKP-15211$21.95 -
Out Of Stock
H&K HK G36 Backplate w/ Recoil Buffer
H&K Heckler & Koch
$79.95HK G36 Backplate With Recoil Buffer This is a great spare or replacement to have on hand. These are also required for those that are doing the SL8-G36 conversions provided by Tommy Bostic & Chopstix Kid.HKP-01058$79.95 -
H&K HK G36C/G36K Gas Piston
H&K Heckler & Koch
$89.95HK German G36C & G36K Gas Piston - Complete New HK German factory G36C and G36K gas piston complete with sealing rings installed. A great spare or replacement part. This is also a popular part for those upgrading to an SL8 to G36K or C barrel length...HKP-00352$89.95 -
H&K HK MR556/416 Ejection Door Lock Bolt Pin
H&K Heckler & Koch
$4.95HK MR556 & 416 Ejection Door Lock Bolt Pin Compatible With: HK 416 HK MR556HKP-02536$4.95 -
H&K HK P30/P2000 Trigger Bar Detent Spring
H&K Heckler & Koch
$7.95HK P30 & P2000 Trigger Bar Detent Spring Compatible With These Models In 9mm, .40 S&W, & .357 SIG: HK P30 HK P30L HK P30SK HK P2000 HK P2000SKHKP-01799$7.95 -
H&K HK VP9/VP9SK, VP40 Safety Clamp - Black
H&K Heckler & Koch
$9.95H&K HK VP9/VP9SK, VP40 Safety Clamp - BlackHKP-16795$9.95 -
H&K MP5 40/10 Magazine Release Lever Spring
H&K Heckler & Koch
$9.95H&K MP5 40/10 Magazine Release Lever Spring The needed spring that fits in the mag release lever and the magwell for the MP5 40/10 series. Made in Germany and no longer offered or made. These units are the latest design with the ground ends for...HKP-18109$9.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring
H&K Heckler & Koch
$9.95H&K UMP/USC (.40 S&W/.45 ACP/9mm) Firing Pin Spring This is a common wear and breakage item. This item also frequently becomes lost by end users when field stripping the UMP and USC Bolts. Compatible with: All HK UMP & USC FirearmsHKP-00262$9.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Magazine Release Spring
H&K Heckler & Koch
$9.95HK UMP & USC Magazine Release Spring HK German factory mag release spring for all USC and UMP mag releases. Compatible With: USC lowers UMP lowersHKP-01899$9.95 -
Hi-Viz HK VP9, HK P30, HK 45 LiteWave H3 Tritium/Litepipe Night Sights
Hi-Viz
$125.00Hi-Viz, LiteWave H3 Tritium/Litepipe Night Sights, Fits HK VP9, VP9SK, VP40, HK45, HK45C, P30, P30L, Green Front With White Front Ring, Orange Rear New! LiteWave H3(TM) sight combines Tritium with the HIVIZ Litepipe technology for 24 illumination. Now...HKP-19435$125.00 -
HKP HK MR556/416, HK MR762/417 Flip Up Rear Sight-2mm
HKP HK Parts
$139.95HK 416, MR556 & MR762, 417 Flip Up Rear Sight Diopter 2mm Sight - US Attaches to any standard picatinny rail. No hardware needed as this is a self contained quick attach rear sight assembly. This unique sight features a quick & easy push button...HKP-17717$139.95 -
On Sale
HKP HK VP9, VP40 Competition Magwell Extension
HKP HK Parts
Now: $65.95Was: $129.95HKP HK VP9, VP40 Competition Magwell Extension Our 2-piece, steel insert competition VP9/VP40 extended flared mag well is CNC made from heat treated 4140 billet nitrided steel. The upper portion of the mag well is machined from aircraft-grade aluminum...HKP-21079-MNow: $65.95Was: $129.95 -
HKP HK VP9/VP9SK, HK VP40 Windowed Slide Plate - FDE
HKP HK Parts
$29.95HKP HK VP9/VP9SK, HK VP40 Windowed Slide Plate - FDE HK VP9, VP40 Alloy Slide Plate. A direct replacement for the cheap plastic slide plate that comes stock with your HK VP9, VP40. A great way to dress up and enhance your HK VP9, VP40 pistol. Made from...HKP-18576$29.95 -
On Sale
HKP Sig Sauer P320 Nitron Compensator
HKP HK Parts
Now: $149.95Was: $189.95HKP SIG P320 Nitron Compensator Our P320 Nitron compensator reduces recoil and muzzle flip. Each unit is 100% US made and finished in durable black cerakote. Our Nitron compensator features a picatinny rail to mount lights/lasers. Available...HKP-21300Now: $149.95Was: $189.95 -
HKP Tactical Rail - 4" - HK91/93
HKP HK Parts
$12.95HKP Tactical Rail - 4 Inch The six mounting screws are also included with each rail. This rail will fit on either the left or right side or the bottom of the PTR and HK91/93 tactical handguards. Up to three rails can be used on each forearm. Compatible...HKP-02528$12.95 -
IMI 32 Round UZI Magazine - New Old Stock
IMI
$59.95Uzi 32 Round 9mm Magazine - IMI Licensed - Mec-Gar Manufacture Made in Italy by the renowed Mec-Gar magazine manufacturing company with IMI Licensing. An all steel production and a blued finish to help protect it against rust. These are the last...HKP-21230$59.95 -
MKE HK33 A3 Retractable Buttstock - OD Green
MKE
$359.95MKE HK33 Retractable Buttstock - OD GREEN The MKE retractable HK33 buttstock is an easy-to-install retractable stock system designed to deliver superior comfort and reliable weapon control. The simple lock/release system is easy to operate,...HKP-21181$359.95 -
MP5, MP5K 9mm Contact Piece For Paddle Mag Release - German
H&K Heckler & Koch
$39.95MP5, MP5K 9mm Contact Piece For Paddle Mag Release - German This is the real deal NOT the .308 or .223 contact piece. Hard to find factory-correct, brand-new, latest production German HK 9mm contact piece. Compatible With: MP5, SP5, 94, SP5 MP5K, SP5K,...HKP-00118$39.95 -
On Sale
SB Tactical AR-15 Pistol Stabilizing Brace-Retractable
SB Tactical
Now: $189.50Was: $239.99SB Tactical AR-15 Pistol Stabilizing Brace-Retractable The SB PDW Pistol Stabilizing Brace® was designed in conjunction with Maxim Defense. It is 3-position adjustable brace compatible with mil-spec bolt carrier groups and carbine buffers. Compatible...HKP-18183Now: $189.50Was: $239.99