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 50 Round GSG-522/GSG-16 Drum Magazine - Translucent
HKP HK Parts
$79.95HKP 50 Round GSG-522/GSG-16 Drum Magazine - Translucent Compatible With: GSG-16 GSG5 GSG5PK GSG522 GSG5-SD Please note: This magazine will not fit the HK Walther/Umarex MP5-A5 or SD models (we have one that works for the HK MP5 .22 in the MP5 .22...HKP-16234$79.95 -
HKP HK G36/SL8 (5.56/.223) Aftermarket Side Rail Left Or Right
HKP HK Parts
$25.95G36 & HK SL8 Aftermarket Side Rail Left Or RightHKP-00286$25.95 -
HKP HK Mark 23, SOCOM Titanium Firing Pin
HKP HK Parts
$49.95Ultimate Firing Pin Mark 23, Socom - Titanium - Grade 6 A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium...HKP-17803$49.95 -
HKP HK P30/P30S Comp Weight™ Quick Detach Compensator - Black
HKP HK Parts
$149.95HK P30, P30S - Quick Detach Comp Weight™ - 9mm & .40 Cal Easy on, easy off - Quick Detach Technology. In stock & shipping! The HK Parts P30, P30S 9mm & .40 Cal Comp Weight™ is the world's first quick detach Comp Weight™,...HKP-17929$149.95 -
HKP HK VP9SK Low Profile Magwell - Black
HKP HK Parts
$59.95HKP HK VP9SK Low Profile Magwell Low profile, every day carry magwell for the HK VP9SK pistol. For those that would like the enhancements and competitive advantage a mag well offers without the bulk of the larger competition magwell. Funnels mags...HKP-21456-M$59.95 -
HKP HK45 +7 Magazine Extension Kit - Black
HKP HK Parts
$74.95HKP HK45 +7 Magazine Extension Kit - Black HK PARTS magazine extension +7 kit adds 7 additional rounds to the HK45 magazine with the simple swap of the floor plate & high-reliability mag spring. HKP highly recommends using a magazine loader when...HKP-20808$74.95 -
HKP MP5 9mm SEF Style 0,1 Trigger Pack - Safe, Semi Only
HKP HK Parts
$359.95HKP/H&K MP5/K 9mm SEF Semi-Auto Complete Trigger Pack We have one of the best HK gunsmiths in the country that can take hand-picked German HK F/A trigger packs and modify them to semi-auto. This is done with the best and most precise machinery and...HKP-00152$359.95 -
HKP MP5SD 9mm Front End Kit
HKP HK Parts
$1,199.95HK MP5SD Front End Build Kit The HK Parts MP5SD front end kit includes everything required (except suppressor) to build an MP5SD front end including the best US and German components available. Each kit counts as 4 922r USA-made parts toward the...HKP-02399$1,199.95 -
HKP Single Point Sling - Dark Earth
HKP HK Parts
$29.95HKP Single Point Sling - Dark Earth This sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point HK sling. Features: Super thick all Dark Earth heavy-duty corduroy nylon to withstand years of heavy...HKP-09051$29.95 -
JMAC Universal Picatinny 8" Arm Bar with Brace Adapter
JMAC Customs
$279.85JMAC Arm Bar 8" Inch Rise with Brace Adapter and 1913 Folding Mech (A)rm(B)ar(8)inch(R)ise + AB-BA Brace Adapter + our 1913 Folding Mech (not assembled) Features: Modular Design - Brace/Stock with many mounting options Integrated QD Sling Socket 8"...HKP-21247$279.85 -
Magpul RSA - Rail Sling Attachment
Magpul
$29.95Magpul RSA - Rail Sling Attachment Attaches to Picatinny rails for an additional point of attachment for slings.HKP-02423$29.95 -
On Sale
Sig Sauer SIG P365 XMacro Grip Module - Black
Sig Sauer
Now: $54.95Was: $89.95Sig Sauer SIG P365 XMacro Grip Module - Black Factory replacement for the P365-XMACRO grip module. It features a true 1913 accessory rail and three interchangeable backstraps (S, M, L) to ensure a proper fit for the user's hand. The medium backstrap...HKP-20559Now: $54.95Was: $89.95 -
Tapco HK 416/MR556/AR15 Stock Wrench
Tapco
$32.95Tapco HK 416, MR556, & AR15 Stock Wrench This tool includes a Mil-Spec castle nut wrench, a standard-length receiver extension removal wrench, and an A1/A2 Flash Suppressor wrench. This offers an improved grip, and each tool has a...HKP-02407$32.95 -
Out Of Stock
Geissele HK MR556/416 14.5" Super Modular Rail System - FDE
Geissele
$549.95Geissele HK416, MR556 14.5" Modular Rail - Desert Dirt Color (DDC) 13.625" overall length Geissele HK 416, MR556 free float rail with HK 416 14.5" barrel and MR 556 16.5" barreled upper. This is a direct replacement item for your HK MR556 and 14.5"...HKP-16462$549.95 -
H&K (5.56/.223) & (7.62x51/.308) Contact Piece For Paddle Mag Release
H&K Heckler & Koch
$29.95HK .223/556 & 308 Contact Piece For Paddle Magazine Release German HK manufacture. The contact piece is used in the magazine release assembly for the paddle mag release. Compatible With: HK 33, 53, 93 HK G3, 91, PTR91HKP-00465$29.95 -
H&K 91/G3 (7.62x51/.308) Complete Bolt Head - Enfield HK Contract - Used
H&K Heckler & Koch
$179.95HK G3 & HK 91 & PTR Bolt Head Complete - British Enfield - Exc/Like New Made On HK tooling & prints in the Enfield factory in Britain in 1988. Each bolt head is complete with the bolt head parts installed & 100% functional. Removed from...HKP-18423$179.95 -
H&K 91/G3 (7.62x51/.308) Slimline Forearm - OD Green - LIKE NEW
H&K Heckler & Koch
$24.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - OD Green - LIKE NEW Like new German military surplus O.D. green slimline forearm with heat shield. For use on standard contour barrels not the thicker barrel profiles. Compatible With: HK G3 HK 91 HK PTR...HKP-21477$24.95 -
H&K HK Mark 23 Ejector Roll Pin
H&K Heckler & Koch
$6.95HK Mark 23 Ejector Roll Pin The Mark 23 has been discontinued, and spare parts will become limited in time, so stock up now while we have these hard-to-find parts available.HKP-01816$6.95 -
H&K HK MR556 M-LOK 16.5" Upper Receiver Assembly - Black
H&K Heckler & Koch
$1,779.95New HK Factory German MR556 Upper Kit with M-LOK forearm Includes: Complete MR556 upper receiver with M-LOK forearm MR556 Bolt group Complete Tungsten Filled HK Buffer HK Buffer Spring One 30 Round HK Steel Maritime Magazine No FFL required as the...HKP-17366$1,779.95 -
H&K HK MR556/HK416 FFRS Retaining Spring
H&K Heckler & Koch
$7.99H&K HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the Free Floating Rail System (FFRS). These can become damaged with the removal of the handguard screws. Once the spring is damaged, they have to be...HKP-02617$7.99 -
Out Of Stock
H&K HK USP .45 ACP Full Size Standard Length Barrel - Black
H&K Heckler & Koch
$379.95HK USP .45 ACP Full Size Standard Length Barrel - Black This part can be a replacement barrel for the USP Tactical if you do not want to have the threaded barrel installed. Easy drop-in installation. It can also be used to convert the USP Tactical .45 to...HKP-01520$379.95 -
H&K HK USPC Left Handed Right Side Control Lever V2/6/10
H&K Heckler & Koch
$39.95For Variant 2, 6, And 10 - Right Side Selector Lever For Left Handed Shooter The lever you need to swap right to left-handed Compatible With: HK USP Compact 9mm HK USP Compact .40 Cal / .357 Sig HK USP Compact .45 Cal HK USPC...HKP-01434$39.95 -
H&K HK VP9/VP9SK, VP40 Main Spring For Firing Pin
H&K Heckler & Koch
$9.95H&K HK VP9/VP9SK, VP40 Main Spring For Firing Pin German HK. Compatible With: VP9 VP9 Tactical VP9SK VP40 VP40 TacticalHKP-16829$9.95 -
H&K HK VP9/VP9SK, VP40 Sear Release Catch - Black
H&K Heckler & Koch
$7.95Sear Release Catch HK VP9, VP40 Compatible With: HK VP9 HK VP9SK HK VP40HKP-16798$7.95 -
H&K HK91, G3, PTR Parkerized Backplate & Recoil Rod Assembly - Parkerized
H&K Heckler & Koch
$34.95Parkerized Backplate - HK91, G3, PTR Surplus German HK backplate that has been refinished and reparkerized.HKP-19692$34.95 -
H&K HK94 "SD" Style Barrel Shroud
H&K Heckler & Koch
$99.95HK94 "SD" Style Barrel Shroud Fits all factory HK94 rifles or barrels and is made to factory German HK94 specs. Designed to cover the 16" barrel and provide a neat SD style look without the cost of a full conversion made of...HKP-02100$99.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Lower Release Lever For Hammer
H&K Heckler & Koch
$9.95HK UMP Catch Release Lever Or Trip Lever For All UMP LowersHKP-01890$9.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Front Sight
H&K Heckler & Koch
$14.95New HK German Factory USC/UMP Front Sight This is a common wear or breakage part. This part is easy to swap out by just knocking out the roll pin, replacing it, and then re-inserting the roll pin. This is a common wear or breakage part. Compatible with...HKP-00254$14.95 -
H&K UMP/USC (.45 ACP) HK Factory Cleaning Kit
H&K / HK Parts
$79.95Cleaning Kit For HK USC & UMP .45 ACP Subguns This Cleaning kit a genuine HK factory cleaning kit and is recommended by HK for all HK pistol owners. Includes: Saf-T-Clad cleaning rod Accessory adapter section #8-32 Patch holder Chamber face...HKP-01055$79.95 -
H&K UMP/USC/G36/SL8 (.40 S&W/.45 ACP/9mm/5.56/.223) Ambidextrous Sling Loop
H&K Heckler & Koch
$40.95UMP, USC, SL8, & G36 Ambidextrous Sling Loop Or Eyebolt For Sling - German HK The addition of the HK eyelet creates a sling attachment point that will enable you to mount a sling using any of the hard mounting points located on the forearm of the...HKP-00611$40.95 -
HK G36/SL8 (5.56/.223) Ejector Spring
USA
$19.95HK G36 & SL8 Series Of Ejector Spring. Great item to have on hand as this is prone to wear and breakage- US.HKP-18374$19.95 -
On Sale
HKP +10 HK P30, VP9 Magazine Extension Kit - Red - BLEMISHED
HKP HK Parts
Now: $34.95Was: $64.95HKP +10 HK P30, VP9 Magazine Extension Kit - Red - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK Parts +10 magazine extension kit...HKP-19455-RE-BNow: $34.95Was: $64.95 -
On Sale
HKP Canik TP9SFX Rival Compensator
HKP HK Parts
$149.95 - $189.95HKP Canik TP9SFX Rival Compensator - Gold/Gray Crafted from aircraft-grade billet aluminum and finished in durable cerakote. Features multiple muzzle ports and the additional weight to significantly reduce both muzzle flip and recoil. Compatible...HKP-21396-M$149.95 - $189.95 -
HKP HK P7 Bench Mat
HKP HK Parts
$13.95HKP HK P7 Bench Mat This isn't your ordinary gun cleaning mat! Show your pride for your HK P7 bench mat firearm while using our high quality neoprene rubber backed and cloth topped gun cleaning mat to protect your gun bench, desk, kitchen table, or...HKP-17282$13.95 -
Out Of Stock
KCI 30 Round HK MP5 Subsonic Labeled Magazine
HKP HK Parts
$44.95KCI 30 Round HK MP5 Subsonic Labeled Magazine Each 9mm Magazine Features: Latest generation and factory fresh, individually sealed magazine 30-round capacity 9mm caliber marked (9mm x 19) Curved for more reliable feeding with steel chrome follower All...HKP-21131$44.95 -
Magpul 25 Round PMAG M3 Magazine - 7.62x51/.308
Magpul
$24.95Magpul PMAG 25-LR 25-Round 7.62 NATO The 7.62x51 NATO (.308 Winchester) PMAG 25LR is a cost effective high reliability magazine for SR25/M110 pattern rifles featuring true 25-round capacity, constant-curve body, and snap on Impact/Dust Cover. Designed...HKP-16908$24.95 -
MKE AP5 3 Point Sling Sling Complete
MKE
$34.99MKE AP5 3 Point Sling Sling Complete This is a Factory OEM Sling included with the AP5. Can be utilized on any HK 90 series of firearms. Compatible With: Century Arms AP5 HK MP5 & SP5 HK MP5K & SP5K HK94HKP-21187$34.99 -
Out Of Stock
RCM HK P30SK & HK P2000SK 9mm Tactical Barrel - Threaded 1/2x28 RH
RCM
$225.00RCM HK P30SK & HK P2000SK 9mm Tactical Barrel - Threaded 1/2x28 RH Each HK P2000SK and P30SK tactical barrel is meticulously crafted from ordnance grade steel, heat treated, and finished with a durable nitride coating. This is the finest...HKP-19306$225.00 -
RCM HK USP .40 S&W Tactical Barrel - Threaded 9/16x24
RCM
$225.00RCM HK USP .40 S&W Tactical Barrel - Threaded 9/16x24 Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the best replacement barrel for the HK USP full-size .40 S&W...HKP-17744$225.00 -
SB Tactical HK UMP Pistol Stabilizing Brace - Black
SB Tactical
$79.95SB Tactical HK UMP Pistol Stabilizing Brace - Black The second generation of the SBT and enhances your B&T APC, HK UMP, or LWRCi SMG45 with an integral, right side-folding mechanism and an arm cuff based on the SB-Mini. The SBT-G2 provides you...HKP-20084$79.95