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 VP9/VP9SK, VP40 Firing Pin Pressure Spring
H&K Heckler & Koch
$5.99H&K VP9/VP9SK, VP40 Firing Pin Pressure Spring Compatible With: HK VP9/VP9SK HK VP40HKP-16831$5.99 -
HK G36, SL8 Fixed Sights & Optic Rail
USA
$199.95HK SL8, G36 Sight Rail With Front & Rear Fixed Sights US made SL8 & G36 Picatinny rail with fixed iron sights. Each rail requires 3 hardware sets to mount. Compatible With: HK SL8, HK Sl8-1 G36, G36K, G36CHKP-19717$199.95 -
HK German Leather Sling
H&K Heckler & Koch
$99.95German HK Leather 2 point sling - New Comes with HK sling hook. Complete and new condition. Made with leather straps and steel hardware and HK sling hook. Compatible With: HK91 G3 PTR91 & CETMEHK93 33 53HK94 MP5HK clones or other custom...HKP-20485$99.95 -
HK UMP & G36 Pistol Grip Storage Insert
USA
$16.95HK UMP & G36 Pistol Grip Storage Insert G36 & UMP pistol grip insert for all G36 & UMP lower housings. This is the piece that locks into place and fits in the bottom of the handle itself. This is a perfect storage location for paperwork,...HKP-20176$16.95 -
Out Of Stock
HKP 416 10.4" 5.56 Complete Upper Receiver Assembly
HKP HK Parts
$2,485.95HKP 416 10.4" 5.56 Complete Upper Kit Complete Each kit includes the complete upper assembly, bolt group, tungsten buffer, & high-reliability SS recoil spring. This upper kit is a complete gas piston HK 416 style upper assembly that will drop on your...HKP-17662$2,485.95 -
On Sale
HKP HK VP9SK Comp Weight™ Quick Detach Compensator - Black
HKP HK Parts
Now: $99.95Was: $199.95HKP HK VP9SK Comp Weight™ Quick Detach Compensator - Black Easy on, easy off- Quick Detach technology. The HK Parts VP9SK Comp Weight™ is the world's first quick detach Comp Weight™, compensator. That slides effortlessly onto your...HKP-18376Now: $99.95Was: $199.95 -
HKP MP5 & HK94 Vented Wide Forearm - Horizontal
HKP HK Parts
$74.95HKP MP5 & HK94 Vented Wide Forearm - Horizontal New USA manufactured HK MP5 & HK94 vented wide handguard with The horizontal style vents. This style of venting allows better handling & superior barrel cooling abilities.HKP-16855$74.95 -
HKP MP5 40/10 Magazine Floor Plate
HKP HK Parts
$9.95HKP MP5 40/10 Magazine Floor Plate Great for spare parts and also a much needed US made compliant part for U.S. compliance.HKP-16507$9.95 -
HKP Tactical Rail - 2" - HK91/93
HKP HK Parts
$16.95HKP Tactical Rail - 2 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-02527$16.95 -
On Sale
HKP/H&K VP9/VP40/P30/HK45 Red Dot Pistol Mount - Black - BLEMISHED
HKP HK Parts
Now: $36.95Was: $49.95HKP/H&K VP9/VP40/P30/HK45 Red Dot Pistol Mount - Black - BLEMISHED MISSING FINAL FINISH AFTER HOLES WERE DRILLED AS SHOWN IN PICS. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED...HKP-18507-BL-BNow: $36.95Was: $49.95 -
Maglula .22LR - .380 ACP Pistol Magazine Loader
Maglula
$35.95Maglula .22LR - .380 ACP Pistol Magazine Loader The BabyUpLULA is a high-quality pistol magazine loader and unloader designed for loading virtually all* single-stack and narrow-body .22 LR to .380 ACP (9mm Short/Kurz)mags which have normal/...HKP-15637$35.95 -
Out Of Stock
PTR HK G3/91 (7.62x51/.308) GI Barrel - Threaded 5/8x24
PTR
$214.95PTR HK G3/91 (7.62x51/.308) GI Barrel - Threaded 5/8x24 New PTR91 US made G.I. spec 18" barrel. Perfect for any barrel threaded 5/8x24. New production perfect for new builds. This part counts as one US made compliant part. Specifications: Overall Lenght...HKP-18435$214.95 -
Streamlight HK USP TLR-4 Light & Laser - Red
Streamlight
$219.95Streamlight HK USP TLR-4 Light & Laser - Red Features: White LED with Red Laser Ambidextrous momentary/steady On-Off switch One-handed snap-on and tighten interface keeps hands away from the muzzle when attaching/detaching Securely fits a broad...HKP-16916$219.95 -
Strike Industries HK MP5K Dual Folding Stabilizer with Adapter
Strike Industries / HKP
$319.95 - $339.95Strike Industries Dual Folding Stabilizer with HKP MP5K Adapter The Strike Dual Folding Stabilizer paired with our MP5K picatinny adapter is one of the best options on the market for those looking for weight reduction and a compact configuration...HKP-21386-M$319.95 - $339.95 -
Angstadt Arms 3-Lug Quick Detach 9mm Blast Shield
Angstadt Arms
$99.95Angstadt Arms, Blastwave, Blast Diverter, 9MM, 3 Lug Attachment Ideal for close quarters environments or shooting in teams, the Blastwave 3-Lug 9mm QD Blast Shield reduces concussive forces on the shooter and those nearby by redirecting the blast...HKP-19983$99.95 -
On Sale
B&T SIG SG 550 Series Mount
B&T Brugger & Thomet
Now: $91.95Was: $124.95B&T Mounting Rail NAR Low Profile Mount for SIG SG 550/551/552/553 Specifications: Color: Black Height max: 16 mm Length max: 152 mm Length of top rail: 152 mm Material: Aluminum & steel NATO Accessory Rails: 1 Treatment: Hartcoat anodized &...HKP-16866Now: $91.95Was: $124.95 -
H&K 91/G3/MSG90 (7.62x51/.308) 5 Round Magazine - Steel - Used
H&K Heckler & Koch
$59.95German 5 Round Steel Magazine - G3, 91, CETME .308 - Like New Compatible With: HK G3, 91, PTR HK CETME, Clone or other custom builds HK PSG-1 HK MSG-90 HK 11HKP-18924$59.95 -
Out Of Stock
H&K 93/53/33 (5.56/.223) Magazine Clamp - Used
H&K Heckler & Koch
$79.95HK 93, HK 33 & HK 53 Magazine Clamp - Used German HK dual mag clamp for all HK 93/33/53 magazines. HK Factory German manufacture and the real deal. Holds two magazines together for easy access and ease of use. Compatible with: All 25, 30, 40...HKP-21061$79.95 -
H&K G36/SL8 (5.56/.223) Bolt Head Ejector Pin
H&K Heckler & Koch
$7.95Bolt Head Ejector Pin For G36 & SL8 This item is the pin that holds the ejector & ejector spring in place. It is a common wear and replacement item and a must-have when doing bolt head maintenance.HKP-01876$7.95 -
H&K HK 416 10.4" Vented Upper Gas Block
H&K Heckler & Koch
$279.95HK German 10.4" Upper Gas Block Complete New Vented Style New HK German manufacture newest "VENTED" version direct from HK Germany. Great upgrade part for existing 10.4" uppers that have the older style non-vented gas block or to use on the MR556-HK 416...HKP-18056$279.95 -
H&K HK MR556/416 Handguard Rail System Screw
H&K Heckler & Koch
$29.95HK MR556 & HK 416 Handguard Rail System Screw This is the hex head version for any metric Allen hex head that can be utilized to tighten and release the screw pressure. This can also be used to replace the rail screw on...HKP-02717$29.95 -
H&K HK USPC Recoil Rod Assemblies Snap Ring
H&K Heckler & Koch
$7.95HK USPC Recoil Rod Assemblies Snap Ring A great item to have on hand as they are prone to falling off when doing scheduled maintenance and cleaning on the recoil assemblies. Compatible With: HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact ...HKP-01944$7.95 -
H&K HK VP9, HK VP9L Optics Ready Optics Plate #3 STS2 - Black
H&K Heckler & Koch
$52.95Optics Plate #3 STS2 - HK VP9, VP9L OR, VP9SK OR Steel HK OEM optics plate. Compatible With: C-More STS2 HK VP9 OR, VP9 Tactical OR HK VP9L OR HK VP9 Match OR VP9SK OR **Plate Only works with VP9 pistols with Factory Optics cuts.**HKP-19254$52.95 -
H&K Magazine - .40 S&W 9 Round for HK P2000SK
H&K Heckler & Koch
$49.00German HK P2000 SK 9 Round Magazine - 40 S&W Spare magazines for HK P2000 SK .40 caliber pistols. This magazine holds nine rounds of .40 S&W ammunition.HKP-00307$49.00 -
On Sale
HKP HK P30L 9mm/.40 S&W Gen 2 Rail Mount Compensator - Blue - BLEMISHED
HKP HK Parts
Now: $68.95Was: $184.95HKP HK P30L 9mm/.40 S&W Gen 2 Rail Mount Compensator - Blue - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Crafted from aircraft grade billet...HKP-19067-BU-BNow: $68.95Was: $184.95 -
HKP HK SP5 Folding Stock Adapter
HKP HK Parts
$159.95SP5 Folding Stock Adapter Our HK Parts stock adapter was made from a solid billet of CNC machined aircraft grade aluminum with QD sling attachment points. Properly buffered with factory correct “H” buffers to protect your expensive firearm...HKP-20644$159.95 -
PTR AR Stock Adapter & Buffer Tube For HK - Commercial
PTR
$124.95PTR AR Stock Adapter & Buffer Tube For HK - Commercial With this adapter, you can use your existing metal backplate, standard G3 buffer, and your choice of stock to add an AR15 stock to your HK firearm. This part is a perfect compliment for those who...HKP-14339$124.95 -
PTR HK G3/91 (7.62x51/.308) Match Barrel - Threaded 5/8x24
PTR
$229.95PTR HK G3/91 (7.62x51/.308) Match Barrel - Threaded 5/8x24 This new PTR-91 US-manufactured 18" heavy profile match grade barrel is perfect for new builds and counts as one US-made compliant part. It features the proper fluted chambers for HK G3/91 rifles...HKP-19633$229.95 -
SB Tactical HK MP5 Brace with HKP Stock Adapter
SB Tactical, HKP HK Parts
$299.95SB Tactical HK MP5 Brace with HKP Stock Adapter Each brace comes assembled ready to install no assembly required. This complete brace will come assembled with our own HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling attachment...HKP-20214$299.95 -
Talon Grip HK45C Rubber - Black
Talon Grip
$19.99TALON Grip - HK45C - Rubber Black TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and easy. The pistol grips will...HKP-20258$19.99 -
Bore Boss Pull-Through Bore Cleaner - .30 /.308 /7.62mm
Bore Boss
$10.95Real Avid Bore Boss Pull-Through Bore Cleaner - .30/.308/7.62mm From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready, hassle-free, pure-genius bore cleaner. The...HKP-19399$10.95 -
G36E Bayonet Lug Assembly HK German
H&K Heckler & Koch
$89.95HK German Factory G36E Bayonet Lug Rare and hard to find. The inside diameter (ID) is 16mm in size. A great alternative for those that do SL8 conversions as well as M27 look clone barrel conversions. You will need the G36 bayonet lug roll pin as it...HKP-00354$89.95 -
H&K 33/91/G3 Complete Triple Frame Front Sight Tower
H&K Heckler & Koch
$24.95NEW HK German Front Sight Tower Triple Frame G3 triple frame in. Comes complete with sight blade and roll pin. Compatible With: HK G3 HK G3K HK 93 HK 33HKP-18777$24.95 -
H&K 416 Ambi Sling Loop
H&K Heckler & Koch
$154.95H&K 416 Ambi Sling Loop Ambidextrous sling loop for a quick and easy carrying option. compatible with any sling that attaches via a sling hook. Intended for the HK 416 format but is compatible with any picatinny rail. PLEASE NOTE SLING IS NOT...HKP-20341$154.95 -
H&K 90 Series Trigger
H&K Heckler & Koch
$19.95H&K 90 Series Trigger New German 90 series Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom buildsHKP-18706$19.95 -
Out Of Stock
H&K Extended Right Side Ambidextrous Selector Lever
H&K Heckler & Koch
$149.95HK German Right Side Ambidextrous EXTENDED (ESSL) Lever New German HK extended selector lever for the right side of all ambidextrous trigger packs. Works with all ambi left side HK selector levers. Compatible With: MP5, 94 MP5 clone and custom...HKP-18875$149.95 -
H&K HK 416/MR556 Quad Rail
H&K Heckler & Koch
$419.95Quad Rail - HK 416, MR556 HK German 416, MR556 Quad Rail without mounting screw. Compatible With: MR556 HK416 Specifications: Length: 9 1/4" Color: Charcoal grayHKP-16858$419.95 -
$8.95 -
H&K HK MR556/416 Castle Nut
H&K Heckler & Koch
$35.95HK 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 attachment points as well as traditional wrench...HKP-15230$35.95 -
H&K MP5 Factory Ambidextrous Sling - Black
H&K Heckler & Koch
$79.95HK MP5F 25mm wide Factory German Ambidextrous Sling - Black For use with all HK weapon systems or MP5 that is set up to have sling clip attachment points for both left and right sides (similar to the HK green ambidextrous sling).HKP-00350$79.95