New Arrivals
Shop the latest arrivals at HKP! We have a wide selection of new and innovative products for your HK MP5, HK SP5, HK P30, HK VP9, HK USP, and more. Whether you're looking for performance upgrades, cosmetic enhancements, or simply want to keep your H&K in top condition, we have you covered. Shop our new arrivals today and get the latest gear for your favorite HK firearm.
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HKP HK MP5/SP5 MRO Optic Mount
HKP HK Parts
$134.95HKP HK MP5/SP5 MRO Optic Mount Compatible Firearms: HK MP5/MP5K HK SP5/SP5K In-spec clones & custom builds Compatible Optics: MROHKP-21891$134.95 -
H&K HK21 100 Round Belt with Starter Tab
H&K Heckler & Koch
$59.95H&K HK21 100 Round Belt with Starter Tab - 7.62x51/.308 Custom 100 round belt for HK21 and MG3 belt-fed rifles because 50 rounds just isn't enough! Compatible With: HK 23/21/11HKP-21890$59.95 -
Case of 55 Turkish Contract 30 Round MP5 Magazine
$880.0055 Count Case of Turkish Contract 30 Round MP5 Magazine These Turkish military contract 30 round MP5 magazines are leftover "seconds" that HKP recently imported directly from Turkey. The magazines were manufactured by a Turkish contractor similar...HKP-21889$880.00 -
KCI Glock 50-Round 9mm Drum Magazine - Case of 20
KCI - South Korea
$799.95KCI Glock 50-Round 9mm Drum Magazine - Black - Case of 20 CLEARANCE ITEMS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL CLEARANCE SALES ARE FINAL. Features: Capacity: 50 Rounds Caliber: 9mm Construction:...HKP-21888$799.95 -
Turkish Contract 30 Round MP5 Magazine
$19.95Turkish Contract 30 Round MP5 Magazine These Turkish military contract 30 round MP5 magazines are leftover "seconds" that HKP recently imported directly from Turkey. The magazines were manufactured by a Turkish contractor similar to MKE but are not...HKP-21878$19.95 -
Magpul M-Lok Offset Light / Optic Mount
Magpul
$36.95Magpul M-Lok Offset Light / Optic Mount - Aluminum The M-LOK Offset Light/Optic Mount, Aluminum provides the user with an ambidextrous platform to mount weapons lights or optics at both the 11 and 1 o'clock positions on M-LOK compatible hand guards and...HKP-21875$36.95 -
Nefarious Arms HK MR556/416 10.4" A5 Barrel
Nefarious Arms
$694.95Nefarious Arms HK MR556/416 10.4" A5 Barrel An expertly crafted 10.4" barrel designed for the HK MR556/416 platforms offers improved performance and reliability. Featuring the A5 profile, this barrel balances durability and weight, making it an excellent...HKP-21873$694.95 -
H&K 417/MR762/G28 Complete Buffer Tube
H&K Heckler & Koch
$176.95H&K 417/MR762/G28 Complete Receiver Extension/Buffer Tube Genuine German complete receiver extension for the 417 based 7.62x51/.308 platforms. Compatible With: HK 417 MR762 G28HKP-21872$176.95 -
HKP HK MP5K 40/10 Stock Adapter
HKP HK Parts
$113.95HKP HK MP5K 40/10 Stock Adapter Easily attach your favorite A2 style stock to your MP5K 40/10 with this durable, precision-engineered adapter. Made in the US and available exclusively at HK Parts. Compatible with composite and wood A2 stocks alike...HKP-21869$113.95 -
H&K G36 Concave Folding Adjustable IDZ Stock
H&K Heckler & Koch
$378.95H&K G36 Concave Folding Adjustable IDZ Stock Features: 3 position forward and back 3 cheek piece elevation positions. Folding capability while retaining the ability to fire with the stock folded. Super robust, compact design Includes installation...HKP-21867$378.95 -
HKP HK G36 Picatinny Adapter - Gen 2
HKP HK Parts
$139.95HKP HK G36 Picatinny Adapter - Gen 2 Elevate your G36 with the Gen 2 Picatinny adapter, designed to effortlessly attach any 1913-style stock or brace. Our refined design guarantees a secure attachment for stocks and braces and delivers an adjustable...HKP-21866$139.95 -
H&K G3 Standard Stock Buttpad - Green - Used
H&K Heckler & Koch
$2.95H&K G3 Standard Stock Buttpad - Green - Used This German-made buttpad is an excellent replacement for your worn-out or broken buttpadd on the G3 stock. Used but fully functional. Compatible With: HK G3HKP-21865$2.95 -
H&K/HKP 14 Round HK VP9SK Complete Magazine
H&K / HK Parts
$69.95H&K/HKP 14 Round HK VP9SK Complete Magazine HK Parts modifies an existing 12 round magazine with a +2 extension to create a fully functional 14 round magazine. Specifications: 4-1/2" overall length Compatible With: HK VP9SKHKP-21864$69.95 -
Out Of Stock
H&K 416 Front Takedown Pin
H&K Heckler & Koch
$49.95H&K 416 Front Takedown Pin The 416 front takedown pin is a German-made component designed to securely fasten the upper and lower receivers. Precision-machined for a proper fit, it ensures reliable function and serves as an ideal replacement or spare...HKP-21862$49.95 -
HKP HK MP5K to G3 Stock Adapter
HKP HK Parts
$113.95HKP HK MP5K to G3 Stock Adapter The MP5K/G3 adapter enables seamless compatibility between MP5K firearms and G3-style stocks. Designed for a secure and sturdy connection, it's an excellent upgrade for those looking to customize or swap parts...HKP-21853$113.95 -
HKP HK MP5K Optic Scope Rail
HKP HK Parts
$97.95HKP HK MP5K Optic Scope Rail The HKP optic scope rail is designed to be welded to the top of the receiver to provide a secure Picatinny optic mount for your MP5K. Includes sight mount to retain the factory rear diopter sight. Compatible With: HK...HKP-21852$97.95 -
H&K HK21 FMP Complete Build Kit - Matching Numbers - 14.5" Barrel
HKP HK Parts
$3,994.97HK21 Complete Build Kit- Matching Numbers - 14.5" Barrel HK Parts bring you yet another exhaustive parts kit. Our numbers matching HK21 kit includes everything you need to resurrect an iconic classic and hit the range for some belt-fed action...HKP-21848$3,994.97 -
H&K 93/53/33 (5.56/.223) Surplus Fixed Stock - A2 - Alpine Green
H&K Heckler & Koch
$139.95Surplus - Fixed Stock - OD Green - HK93,33,53 German military surplus but hand-picked to give you the best of the lot. Ready to install on your HK or clone rifle. Each stock features the correct all-metal backplate painted in HK black...HKP-21847$139.95 -
HKP Mouse Pad/Mini-Mat - Bundesadler
HKP HK Parts
$12.99HKP Mouse Pad - Bundesadler - Non-Slip Features stitched edges and a non-slip rubber base. Great as a mouse pad or a mini gun mat. Specifications: 9.84" Long x 8.27" WideHKP-21846$12.99 -
HKP Bench Mat - Bundesadler
HKP HK Parts
$24.95HKP Bench Mat - Bundesadler The HK Parts bench mat is the perfect cleaning & repair mat designed specifically for your Heckler & Koch. The soft top protects your gun from scratches while the rubber backing protects your work surface from...HKP-21845$24.95 -
HKP Bundesadler Coasters - Set of 6
HKP HK Parts
$24.99HKP Bundesadler Coasters - Set of 6 Designed to protect your surfaces in style, these coasters feature a durable top surface with a natural cork bottom, ensuring they stay firmly in place while safeguarding your furniture from water rings, scratches, and...HKP-21844$24.99 -
$6.99 -
Out Of Stock
HKP HK USP/T 9mm +7 Magazine Extension
HKP HK Parts
$69.95HKP HK USP/T 9mm +7 Magazine Extension Easy to install. Simply add the mag extension to your existing mag body and follower. No gunsmithing required. Made in the US from aircraft-grade hard coat anodized aluminum with steel hardware. Ultra-low profile...HKP-21841-M$69.95 -
Strike Industries HK MP5 .22LR Dual Folding Stabilizer w/ Adapter
Strike Industries / HKP
$317.95 - $329.95Strike Industries HK MP5 .22LR Dual Folding Stabilizer w/ Adapter The Strike Industries Dual Folding Stabilizer paired with the HKP MP5 .22LR picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock...HKP-21770-M$317.95 - $329.95 -
Strike Industries HK MP5 .22LR Dual Folding Stock w/ Adapter
Strike Industries / HKP
$319.95Strike Industries HK MP5 .22LR Dual Folding Stock w/ Adapter The Strike Industries Dual Folding Stock paired with the HKP MP5 .22LR picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock...HKP-21769-M$319.95 -
Rheinmetall 91/G3/MSG90 20 Round Magazine - Aluminum - Used
Rheinmetall
$12.95Rheinmetall HK G3, HK91, & PTR91 - 20 Round Magazine - Used Perfect for your HK G3/PTR style firearm. The G3 alloy mags were made for the German Army and are no longer in production. Once they are gone, they are gone for good. LAST CALL! Compatible...HKP-21840$12.95 -
Strike Industries HK MP5 9mm Dual Folding Stock w/ Adapter
Strike Industries / HKP
$319.95Strike Industries HK MP5 9mm Dual Folding Stock w/Adapter The Strike Industries Dual Folding Stock paired with the HKP MP5 picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock configuration...HKP-21768-M$319.95 -
Nefarious Arms HK MR556/416 11" A5 Barrel
Nefarious Arms
$694.95Nefarious Arms HK MR556/416 11" A5 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER. THE MARKING IS NOT VISIBLE ONCE INSTALLED. THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS WILL...HKP-21839$694.95 -
HKP HK G36 Replacement 30 Round Magazine Spring
HKP HK Parts
$7.95HKP HK G36 Replacement 30 Round Magazine Spring A high-quality replacement spring designed to restore optimal performance to your G36 magazine. Built to withstand frequent use, this component ensures smooth feeding and reliable function. Compatible...HKP-21830$7.95 -
HKP HK MP5/K Thread Protector - Threaded 1/2x32 RH
HKP HK Parts
$14.95HKP HK MP5/K Thread Protector - Threaded 1/2x32 RH This MP5/K thread protector is designed to safeguard your barrel threads from damage when a muzzle device is not in use. Made in the USA from high-quality steel, it offers durability and a precise fit...HKP-21829$14.95 -
HKP HK MP5 9mm Receiver Flat w/o Sling Clip
HKP HK Parts
$189.95HKP HK MP5 9mm Receiver Flat w/o Sling Clip The MP5 9mm receiver flat serves as the foundation for custom MP5 builds. This version does not include a sling clip cutout, offering flexibility for customization. Precision-engineered for compatibility with...HKP-21828$189.95 -
RCM HK G3/91 Threaded Barrel - 5/8x24 - CHF
RCM
$264.99RCM HK G3/91 Threaded Barrel - 5/8x24-CHE Machined by RCM from a Mil-Spec 41V50 Hammer Forged Blank. These blanks are considered to be one of the finest made. 1:10 twist, Nitride finish. Perfect for that HK build or to replace that shot out barrel. Each...HKP-21838$264.99 -
RCM HK23E Barrel - CHF
RCM
$699.95RCM HK23E Barrel RCM HK23E light profile barrels are made from mil-spec 41V50 CHF blanks that are fully salt bath nitrided for optimal wear and corrosion resistance. These barrels are the finest out there to complete your HK23E or HK13 build. These are...HKP-21837$699.95 -
HKP HK MP5K .40/10 Brace with Adapter
HKP HK Parts
$239.95HKP HK MP5K .40/10mm Brace with Adapter Designed to adapt UMP style and SB Tactical braces directly to the 40/10 K platform. Made in the USA and available exclusively at HK Parts Compatible With: HK MP5K .40/10mmHKP-21835$239.95 -
HKP HK MP5K .40/10 Stock Adapter with Stock
HKP HK Parts
$289.95HKP HK MP5K .40/10mm Stock Adapter with Stock Designed to adapt UMP style and B&T folding stocks directly to the .40/10mm K platform. Made in the USA and available exclusively at HK Parts Compatible With: HK MP5K .40/10mmHKP-21834$289.95 -
HKP HK MP5K .40/10 Picatinny Rail Stock Adapter
HKP HK Parts
$129.95HKP HK MP5K .40/10 Picatinny Rail Stock Adapter Open your MP5K up to a vast range of brace and stock options with our Picatinny rail stock adapter. Designed specifically for the MP5K 40 cal and 10mm platforms. Available exclusively at HK...HKP-21833$129.95 -
HKP HK MP5K .40/10 Stock Adapter
HKP HK Parts
$129.95HKP HK MP5K .40/10mm Stock Adapter Add your favorite brace or stock to your 40 or 10mm MP5K with the HK Parts stock adapter. Designed to adapt UMP style and B&T folding stocks directly to the 40/10 K platform. Made in the USA and available...HKP-21832$129.95 -
HKP HK CC9 MOD 1 Compensator - Black
HKP HK Parts
$189.95HK Parts MOD 1 Compensator: H&K CC9 The HK Parts MOD 1 compensator perfectly blends form and function, setting a new standard in muzzle control. Experience a significant reduction in muzzle flip and recoil, allowing you to get back on target faster...HKP-21831$189.95 -
On Sale
HKP HK MR556/416 Extractor - BLEMISHED
HKP HK Parts
Now: $29.95Was: $39.95HKP HK MR556/416 Extractor - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HKP HK MR556/416 extractor is a precision-engineered component designed...HKP-21826-BNow: $29.95Was: $39.95 -
HKP HK MP5 Raised Picatinny Optic Mount
HKP HK Parts
$134.95HKP HK MP5 Raised Picatinny Optic Mount The HKP raised Picatinny optic mount was engineered for maximum versatility. Unlike other optic mounts with an absolute or lower third cowitness, our mount provides an unobstructed view of the factory HK...HKP-21819$134.95