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 HK P30SK Firing Pin Safety Pin
H&K Heckler & Koch
$4.95H&K HK P30SK Firing Pin Safety Pin This is a factory original HK part manufactured in Germany.HKP-18524$4.95 -
H&K MP5K/SP89/SP5K 9mm Forearm
H&K Heckler & Koch
$85.99HK SP5K Forearm - German Made from the best materials and processes available. Can be modified to install on MP5K-N builds with 3 lug barrels. Compatible With: MP5K, SP89 & SP5K Custom builds & projects, MP5K, SP89 buildsHKP-18063$85.99 -
HDPS HK UMP (.45 ACP) Threaded Barrel - 16x1 LH
HDPS
$349.95HK UMP & USC 45 ACP 8" Threaded Barrel HDPS UMP barrels are perfect for the USC to UMP conversions and a replacement UMP .45 barrel. They are considered by many to be the finest US-made barrel available. This barrel is the same length as a factory HK...HKP-02634$349.95 -
HK .45 ACP Titanium Thread Protector - Threaded 16x1 LH
$24.95HK .45 ACP Titanium Thread Protector - Threaded 16x1 LH Crafted from solid titanium, this tactical thread protector fits all HK45 full-size and compact barrels threaded 16x1 LH. Essential for safeguarding your threaded barrels and exposed threads, it...HKP-17942$24.95 -
Maglula HK 91/G3 (7.62x51/.308) Magazine Loader
Maglula
$29.95HK91, G3, PTR .308 LULA Mag Loader For those that have used Maglula products they offer the best mag loaders on the planet. Features: Loads a round a second, can unload the entire 20 round magazine in less than 3 seconds Safe on fingers and magazine...HKP-16228$29.95 -
MI HK MP5K, HK SP89 Top Rail - Black
MI Midwest Industries
$129.95MI HK MP5K, HK SP89 Top Rail - Black Midwest Industries picatinny and M-lok top rail for MP5, HK94 style weapons and clones. An amazing profile option for your MP5 style weapon. Offers a combination of strength, adaptability and extreme lightweight...HKP-19113$129.95 -
RCM HK MP5SD 9mm Barrel - Threaded 18x1
RCM
$199.95RCM HK MP5SD 9mm Barrel - Threaded 18x1 Made in the USA from Cold Hammer Forged (CHF) steel, this high-quality barrel features a durable nitride finish. Precision-milled to the latest specifications with updated 16 flutes in the chamber, it is designed...HKP-02118$199.95 -
Out Of Stock
RCM HK21 Barrel
RCM
$674.95RCM HK21 Barrel At last, the RCM hk21 barrels made from 41V50 CHF blanks have landed! Fully nitrided for the best and long-lasting finish for these wonderful barrels. This is the missing piece for all the HK21 builds and undoubtedly the best barrel on...HKP-21521$674.95 -
H&K HK P30SK Slim Short Slide Release Lever Set
H&K Heckler & Koch
$89.95HK P30SK Slim/Short Slide Release Lever - German HK HK manufactured P30SK slimline style slide release set. This set replaces the factory P30SK stock slide release set that comes from the factory. The slim style set is shorter and thinner in design for...HKP-18028$89.95 -
H&K P30/P30S 9mm Tactical Barrel - Threaded 13.5x1 LH
H&K Heckler & Koch
$299.95H&K P30/P30S 9mm Tactical Barrel - Threaded 13.5x1 LH New factory OEM German barrel mande at the HK factory from HK German Cold Hammer Forged barrel blanks, heat treated and finished to HK specs. This is the finest threaded barrel available for the...HKP-16851$299.95 -
H&K Standard Roller 8.00mm - Used
H&K Heckler & Koch
$7.958.00mm Standard Size (zero or unmarked) For HK Roller Lock Bolt Head HK spec new unmarked 8.00mm roller that will fit all HK bolt heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme & Cetme clones. An easy way to remember...HKP-19374$7.95 -
H&K Trigger Spring For Burst Trigger Packs
H&K Heckler & Koch
$8.95Burst Pack Trigger Spring - HK German New HK German trigger return spring used on all HK 90 series burst trigger packs. MP5, HK53, G3 burst, 2 or 3 round burst trigger packs.HKP-01450$8.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Floor Plate
H&K Heckler & Koch
$9.95HK German UMP Floorplate For All UMP Magazines Compatible With: UMP .45 UMP .40 UMP 9mm These can become cracked or broken with use or drops onto hard surfaces.HKP-16493$9.95 -
HKP (5.56/.223) & (7.62/.308) Muzzzle Brake Compensator - Threaded 15x1 RH
HKP HK Parts
$29.95HKP (5.56/.223) & (7.62/.308) Muzzzle Brake Compensator - Threaded 15x1 RH This compensator is perfect for any 15x1 RH Barrel. Specifications: Threaded 15x1 RH Compatible With: HK G3/91/PTR HK 93/53/33 HK MR223 HK 416/MR556 HK 417/MR762 HK...HKP-19738$29.95 -
Sale
HKP .40 S&W Vented Micro Comp - Threaded 9/16x24
HKP HK Parts
Now: $23.95Was: $29.95HKP .40 S&W Vented Micro Comp - Threaded 9/16x24 The HK Parts Micro Comp & Thread Protector is a lightweight, dual function device that serves as both a compensator and thread protector. It easily attaches to any factory spec 9/16x24 .40 S&W...HKP-19957Now: $23.95Was: $29.95 -
HKP HK P30SK Pistol Bench Mat
HKP HK Parts
$13.95HK P30SK Bench MatPerfect for the HK P30SK 9mm & .40 Cal Models This isn't your ordinary gun cleaning mat! Show your pride for your firearm while using this high quality neoprene rubber backed and cloth top gun cleaning mat to protect your gun bench,...HKP-18090$13.95 -
MI HK MP5-A2 Handguard, M-LOK Compatible
MI Midwest Industries
$138.95MI HK MP5-A2 - M-LOK Handguard Features: Professional grade one piece design Simple installation, includes all tools Extremely lightweight design Shortened to allow for use of front sling attachments MI Lifetime Warranty Patent pending Compatible...HKP-19363$138.95 -
Surefire - 628LMF - Lighted Forearm
Surefire
$579.95Surefire - 628LMF - Lighted Forearm The 628 LMF generates 1000 lumens of output and has a tactical runtime of 2 hours per set of batteries, with gradually decreasing output afterward. Surefire 628LMF Features: Virtually indestructible LED and...HKP-03285$579.95 -
B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug
B&T Brugger & Thomet
$349.95B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, cold hammer-forged (CHF), properly fluted & nitrided MP5K/SP5K barrels manufactured exclusively for the HK SP5K. New Swiss manufactured from hand-picked Swiss...HKP-17894$349.95 -
Ergo AR-15 Castle Nut For Buffer Tubes
Ergo
$5.95Ergo AR-15 Castle Nut For Buffer Tubes - US Made Steel Castle-nut for AR buffer tubes fits both mil-spec and commercial buffer tubes alike. Compatible With: HK MR556 & 416 AR-15 style platformsHKP-02729$5.95 -
H&K HK 416/417/MR556/MR762 Takedown Pin Detent Spring
H&K Heckler & Koch
$6.95HK 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 417HKP-02541$6.95 -
H&K HK P9S Series Recoil Spring
H&K Heckler & Koch
$39.95Factory German HK P9 & P9S Recoil Spring It is no longer supported or available from HK Germany. The P9 and P9S have been out of production for many years. Get a spare while we still have them in stock. Compatible With: HK P9 pistols in 9mm and ...HKP-02046$39.95 -
HKP 9mm Ambidextrous US Made Trigger Pack - 4 U.S. 922r Parts
HKP HK Parts
$309.95HKP 9mm Ambidextrous US Made Trigger Pack - 4 U.S. 922r Parts HK MP5/94 9mm Semi-Auto Trigger Pack Complete. Assembled and ready install on your firearm. The components that count towards 4 of the 922r compliant parts include the trigger pack box,...HKP-18269$309.95 -
HKP Enhanced Ambi Selector Set - Contoured SEF
HKP HK Parts
$74.95Ambidextrous Selector Lever Set For Contoured SEF Polymer Grip Frames Features: Billet machined enhanced left & right side selector lever set Latest HK style titanium detent, enhanced spring for positive movement between...HKP-18257$74.95 -
HKP HK UMP (.40 S&W) 30 Round Magazine
HKP HK Parts
$49.95UMP, SMG .40 Cal - 30 Round Magazine Each 30 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliber conversions. Each magazine features, steel feed lips, enhanced polymer construction and all correct updated...HKP-17583$49.95 -
HKP HK UMP 2 Position Lower Grip Frame - FDE
HKP HK Parts
$149.95UMP - 2 Position Lower Grip Frame - FDE New UMP Lower. 2 position settings (S,F). Perfect for all your own internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Compatible With: UMP .45 UMP .40 UMP 9mm USC conversions (NFA...HKP-19384$149.95 -
H&K 30/32 Round HK USP/P30/VP9 Magazine Spring
H&K Heckler & Koch
$9.95H&K 30/32 Round HK USP/P30/VP9 Magazine Spring HK German manufacture new production HK USP 9mm 32 round magazine spring. A super rare and hard to find part for the USP 9mm extended 32 round magazines. This spring took years of searching to find in...HKP-16407$9.95 -
H&K HK P7 Series Piston Plunger, Detent Spring
H&K Heckler & Koch
$7.95HK P7 Series Piston Plunger, Detent Spring Compatible With: PSP P7M8 P7M10 P7M13HKP-01327$7.95 -
H&K USP .40 S&W Tactical Barrel - Threaded 14.5x1 LH
H&K Heckler & Koch
$299.95H&K USP .40 S&W Tactical Barrel - Threaded 14.5x1 LH This genuine Heckler & Koch part is a drop-in replacement for the full-size USP, USP Tactical, and other .40 S&W pistols. The tactical threaded barrel offers precise fit and...HKP-00328$299.95 -
HK 416/417 Buffer Retainer Spring
USA
$2.95HK 416 / HK417 Buffer Retainer Spring This item is the spring for the buffer retainer that is held in the rear of the lower receiver. Compatible With: HK 416 HK 417HKP-20036$2.95 -
HK Piston 3-Ring Replacement Set
H&K Heckler & Koch
$19.95HKP Gas Piston Ring Replacement Combo Set- 3 Rings The gas rings are prone to periodic breakage and wear and tear and require them to be replaced periodically. These are some of the most common breakage parts we see that need to be replaced on these...HKP-00048$19.95 -
HKP HK G3,91,PTR, 93,33 & MP5, 94 Pinned Hammer Strut
HKP HK Parts
$13.95HKP HK G3,91,PTR, 93,33 & MP5, 94 Pinned Hammer Strut New USA hammer strut for 90 series rifles and pistols. A perfect spare to have on hand. This is a pinned hammer spring shank. Perfect for your HK project or rebuild. Compatible With: HK trigger...HKP-20315$13.95 -
HKP HK MP5 .22LR Stock Adapter
$99.95Stock Adapter - HK MP5 .22 LR 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 valuable firearm...HKP-20795$99.95 -
Out Of Stock
HKP HK USP/USPC Bench Mat
HKP HK Parts
$13.95HKP HK USP/USPC Bench Mat This isn't your ordinary gun cleaning mat! Show your pride for your firearm while using this high quality neoprene rubber backed and cloth top gun cleaning mat to protect your gun bench, desk, kitchen table, or whatever surface...HKP-17109$13.95 -
Out Of Stock
HKP HK USPC Red Dot Pistol Mount - Black
HKP HK Parts
$49.95HKP HK USPC Red Dot Pistol Mount - Black Red Dot mounting plate to allow the use of a Burris Fast Fire, Docter, Vortex Venom or other similar specs Red Dot Sights. Replaces rear sight to allow the mounting of a Red Dot Sight to your HK pistol listed...HKP-18899$49.95 -
HKP HK VP9, HK P30, HK USPC, HK P2000 9mm Magazine Follower - Blue
HKP HK Parts
$22.46HKP HK VP9, HK P30, HK USPC, HK P2000 9mm Magazine Follower - Blue A great replacement item for the stock follower. Made from aircraft-grade hard coat anodized aluminum CNC machined from a solid billet. Compatible With: HK VP9, VP9SK, VP40 9mm & ...HKP-19668$22.46 -
Lazy Wolf VP Series F2 Flat Face Trigger - Red Tab
Lazy Wolf
$134.95Lazy Wolf VP Series F2 Flat Face Trigger - Red Tab In a collaboration with Lazy Wolf Guns, HK Parts is offering the finest aftermarket triggers for your HK VP9 & VP40 handguns. The drop in VP9 series trigger is the best trigger ever developed after...HKP-19290$134.95 -
Sale
Sig Sauer SIG P320 21-Round 9mm Magazine
Sig Sauer
Now: $39.95Was: $49.99Sig Sauer SIG P320 21-Round 9mm Magazine Compatible With: Sig Sauer P320 M17 full size pistol Features: 9mm luger caliber 21 rounds magazine capacity Black steel body Coyote tan floorplateHKP-20219Now: $39.95Was: $49.99 -
Out Of Stock
SilencerCo HK VP9 9mm Barrel - Threaded 1/2x28
SilencerCo
$189.95SilencerCo HK VP9 9mm Barrel - Threaded 1/2x28 High-quality components and precise manufacturing make SilencerCo parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years...HKP-19434$189.95 -
Sale
AC-Unity 30-Round Glock 17, 19 9mm Window Magazine - Black
AC-Unity Magazines and Parts
Now: $13.95Was: $19.95AC-Unity 30-Round Glock 17, 19 9mm Window Magazine - Black The AC-Unity 30 round 9mm window magazine for Glock models 17, 18, 19, 19X, 26, 34, 45. Will work in anything designed to accept a Glock 17 9mm double-stack magazine. Originally...HKP-20157Now: $13.95Was: $19.95