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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H&K MP5K 9mm Complete Bolt Group - Suppressed
H&K Heckler & Koch
$2,974.00H&K MP5K 9mm Complete Bolt Group - Suppressed Introducing an incredible opportunity: a fully assembled Factory German F/A MP5K bolt group, showcasing the highly coveted 80 degree #28 German locking piece. This is the definitive drop-in...HKP-21613$2,974.00 -
Zenith 30 Round HK MP5 Magazine - LEO Marked
Zenith
$52.95Zenith 30 Round HK MP5 Magazine - - LEO Marked Replica LEO laser markings that closely resemble those found on factory magazines. These markings are expertly lasered onto Zenith magazines, successfully emulating the sought-after LEO markings of authentic...HKP-21612$52.95 -
KCI 30 Round HK MP5 Magazine - LEO Marked
KCI
$52.95KCI 30 Round HK MP5 Magazine - LEO Marked Replica LEO laser markings that closely resemble those found on factory magazines. These markings are expertly lasered onto KCI MP5 magazines, successfully emulating the sought-after LEO markings of authentic...HKP-21611$52.95 -
On Sale
MKE HK MP5 Retractable Buttstock - Cerakoted
MKE
Now: $299.95Was: $379.95MKE HK MP5 / AP5 Retractable Buttstock Transform your MP5-AP5 Clone with the essential upgrade that defines its iconic look. The A3 collapsible design delivers a customizable length of pull for unparalleled comfort and control. With a straight forward...HKP-21610-MNow: $299.95Was: $379.95 -
RCM HK21 & HK11 Trunnion
RCM
$274.95RCM HK21 Trunnion When RCM set out to make a replacement trunnion for the venerable HK21, they started the process by putting a factory unit through rigorous destructive metal testing. The end-product: a US-made trunnion blending the proper...HKP-21609$274.95 -
HKP HK33/53 Dual Magazine Clamp
HKP HK Parts
$34.95HKP HK33 Dual Magazine Clamp Securely hold two HK33 magazines together for fast mag swaps. Precision-machined from billet aluminum and anodized in the popular red or classic black. Our dual mag clamp is a must for those quick mag changes. Compatible...HKP-21608-M$34.95 -
HKP HK 416 .22LR Dual Magazine Clamp
HKP HK Parts
$49.95HKP HK 416 .22LR Dual Magazine Clamp Securely hold two HK 416 .22LR magazines together for fast mag swaps. Precision-machined from billet aluminum. Our dual mag clamp is a must for those quick mag changes. Compatible With: HK 416 .22LRHKP-21607-M$49.95 -
UTG PRO HK MP5/MP5K Claw Mount - Extended Picatinny
UTG PRO
$69.95UTG HK MP5/MP5K Claw Mount - Extended Picatinny UTG Pro Claw Mount for MP5 and MP5K pattern firearms featuring UTG's patented receiver locking interface. Each U.S. made mount features an extended Picatinny rail, lightweight matte black...HKP-21606$69.95 -
H&K HK 940 .30-06 Rifle Barrel
H&K Heckler & Koch
$948.95H&K HK 940 .30-06 Rifle Barrel We understand how challenging it can be to find rare and hard-to-find components for your firearms, which is why we are pleased to present an exceptional opportunity to acquire a replacement barrel for the HK940 in ...HKP-21605$948.95 -
HKP HK MR556/416 Extractor Spring Buffer
HKP HK Parts
$5.39HKP HK MR556/416 Extractor Spring Buffer This buffer fits inside the extractor spring in the extractor pocked of the bolt. This item is a high wear item and a spare would be highly advised. Compatible With: HK MR556 & HK416 FirearmsHKP-21604$5.39 -
HKP HK 9mm Enhanced Thread Protector - 13.5x1
HKP HK Parts
$19.95HKP HK 9mm Enhanced Thread Protector - 13.5x1 This enhanced thread protector is crafted from stainless steel and designed for 13.5x1 threaded barrels. Its unique design not only fits over and protects the crown of your barrel but also...HKP-21603$19.95 -
Out Of Stock
H&K HK45/HK45C Meprolight Tritium Night Sight - Green
H&K Heckler & Koch
$97.95H&K HK45/HK45C Meprolight Tritium Night Sight - Green New old stock HK/Meprolight 6.3 sights. Comes in factory HK packaging. Only a handful available. Compatible With: HK45 HK45CHKP-21602$97.95 -
HKP HK MP5 Raised Picatinny Rail
HKP HK Parts
$134.95HKP HK MP5 Raised Picatinny Rail The HK Parts MP5 Raised Picatinny Rail offers the best of both worlds featuring an unimpeded view of the factory iron sights and an elevated mount for your favorite optic. Cowitness? Lower third? ...HKP-21601$134.95 -
On Sale
HKP HK MP7 Dual Magazine Clamp
HKP HK Parts
Now: $34.95Was: $49.95HKP HK MP7 Dual Magazine Clamp Our MP7 dual mag clamp was designed for quick mag swaps at the range or in the real world. The clamp works with any capacity MP7 magazine. Compatible With: HK MP7HKP-21597-MNow: $34.95Was: $49.95 -
On Sale
B&T Unigrip QD with Bipod - Aluminum
B&T Brugger & Thomet
Now: $199.95Was: $224.99B&T Unigrip QD with Bipod - Aluminum This B&T foregrip features a retractable bipod for superior weapon stability in both the standing and prone positions. Specifications: Condition: Factory new Material: Aluminum Heat deflection...HKP-21596-MNow: $199.95Was: $224.99 -
HKP HK VP9 Optics Ready Optics Plate #1 - Meopta, Eotech, Noblex - Black
HKP HK Parts
$49.95HKP Mounting Plate #1 - Noblex/Meopta/EOTech - HK VP9, VP9L OR Models Each plate is CNC machined from a solid billet of ordnance grade aluminum, tumbled, and cerakoted for the ultimate in durability and finish. Includes 2 T20 steel torx plus mounting...HKP-21595$49.95 -
HKP HK USC Stock Block to Picatinny Rail
HKP HK Parts
$149.95HKP HK USC Stock Block to Picatinny Rail The HKP USC stock block with picatinny rail offers superior adjustability for the stock of your choice. Each stock block is crafted from billet aluminum, cerakoted for a robust finish, and includes the sling pin...HKP-21594-M$149.95 -
MKE Large Butt Stock Push Pin
MKE
$6.95MKE Large Push Pin Each large stock push pin is used to retain the stock to the receiver on the 90-series firearms. These are great replacement or spare part to keep on hand as they fit all of the 90-series firearms below. The large push pin is an...HKP-21593$6.95 -
HKP HK VP9/HK P30 Enhanced Magazine Extension Kit +7
HKP HK Parts
$64.95Magazine Extension Kit +7 - HK VP9, HK P30 Our enhanced magazine extension takes our proven design to the next level with innovative grip cuts, ensuring you maintain a secure grasp during rapid magazine swaps even in slippery conditions. Experience the...HKP-21592-M$64.95 -
HKP HK VP9/VP9SK, VP40 Hex Button Quick Detach Slide Plate - Black/Red
HKP HK Parts
$34.95HKP HK VP9/VP9SK, VP40 Hex Button Quick Detach Slide Plate - Red/Black The HK Parts quick detach slide plate for the HK VP series of pistols is ideal for those that want the ability of quickly and efficiently access the firing pin, sleeve assembly...HKP-21591$34.95 -
Out Of Stock
Nefarious Arms HK 416/MR556 14.5" A5 Barrel
Nefarious Arms
$694.95Nefarious Arms HK 416/MR556 14.5" A5 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or pistol build. Compatible With: HK 416 (A5,...HKP-21590$694.95 -
Out Of Stock
Nefarious Arms HK 416/MR556 14.5" A3 Barrel
Nefarious Arms
$694.95Nefarious Arms HK 416/MR556 14.5" A3 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...HKP-21589$694.95 -
H&K 91/G3 (7.62x51/.308) 20 Round Magazine - Steel - Refinished
H&K Heckler & Koch
$84.95HK German 20 Round Steel Magazine - Refinished HK G3 factory steel 20-round magazine, expertly restored to its former glory. This magazine has been meticulously refinished inside and out, featuring a polished follower along with a fully parkerized finish...HKP-21587$84.95 -
HKP, H&K 19 Round HK Mark 23 / USP .45 ACP Complete Magazine - Black
H&K / HK Parts
$109.95Magazine Extension Complete - 19 Round - HK Mark 23/USP .45 Designed specifically for the Mark 23 and USP .45—perfect for those who want extra firepower at the range. Each magazine comes fully assembled and ready for immediate use. We expertly take...HKP-21586$109.95 -
RCM HK MP5K .40 S&W Barrel - Threaded 14x.75 - 3-Lug
RCM
$279.95RCM HK MP5K .40 S&W Barrel - Threaded 14x.75 - 3-Lug This is the ultimate US-made barrel for any new or conversion build for the MP5K .40 cal. Crafted from top-grade CHF 41v40 material, it’s machined to impeccable standards. With the correct...HKP-21585$279.95 -
MI HK MP5K 1913 End Plate Adapter
MI Midwest Industries
$89.95MI HK MP5K 1913 End Plate Adapter The Midwest Industries Picatinny end plate adapter opens up a myriad of off-the-shelf stock and brace options. The adapter installs in the same manner as the factory end cap with a single push pin. Modification may be...HKP-21584$89.95 -
RCM HK MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug
RCM
$279.95RCM HK MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug This is the ultimate US-made barrel for any new or conversion build for the MP5 .40 cal. Crafted from top-grade CHF 41v40 material, it’s machined to impeccable standards. With the correct...HKP-21582$279.95 -
HKP HK UMP Flash Hider - Birdcage Style
HKP HK Parts
$49.95HKP HK UMP Flash Hider - Birdcage Style We are pleased to present the HKP UMP birdcage flash hider, designed specifically for our UMP 45 parts kit. This exceptional accessory not only protects exposed threads but also enhances the overall aesthetic of...HKP-21579$49.95 -
HKP HK UMP 4 Prong Ported Flash Hider
HKP HK Parts
$49.95HKP HK UMP 4 Prong Ported Flash Hider 4-prong UMP ported flash hider designed for our new UMP 45 parts kit. Not only does it protect exposed threads, it also enhances the appearance of your firearm while delivering flash suppression. Compatible...HKP-21578$49.95 -
HKP HK 416 .22 LR Flash Hider - Birdcage Style
HKP HK Parts
$39.95HKP HK 416 .22 LR Flash Hider - A5 Birdcage Style Upgrade your 416 .22 pistol with a direct mount on flash hider featuring a sleek A5 birdcage style for a truly custom look. Built to last with the highest quality and nitride finish. Compatible With: HK...HKP-21577$39.95 -
HKP HK 416 .22 LR Flash Hider
HKP HK Parts
$39.95HKP HK 416 .22 LR Flash Hider Enhance your 416.22 pistol with a direct-mount flash hider boasting an elegant Birdcage style for an unmistakable custom appearance. Included O-ring ensures a securely locked flash hider, guaranteeing durability and...HKP-21576$39.95 -
HKP HK 416 .22 LR A5 Flash Hider
HKP HK Parts
$59.95HKP HK 416 .22 LR A5 Flash Hider Our HK Parts A5 flash hider is a directly mounted upgrade that will enhance the appearance of your 416 .22LR build, perfect for those aiming to achieve an authentic A5 style. It comes with an O-ring for secure attachment,...HKP-21575$59.95 -
On Sale
HKP HK SL8/G36 Conversion Stock Block with Picatinny Rail
HKP HK Parts
Now: $99.95Was: $149.95HKP HK SL8/G36 Conversion Stock Block with Picatinny Rail SL8 to G36 stock block with Picatinny rail offers superior adjustability for the stock of your choice, making it an excellent choice for SL8 conversion projects. Crafted from billet and cerakoted...HKP-21574-MNow: $99.95Was: $149.95 -
HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set
HKP HK Parts
$8.95HKP MP5 & MP5K 9mm Magazine Follower & Locking Plate Set A drop in item that allows you to swap your follower & locking plate to green or red. Best for a quick empty mag identifier. A great training or range aid at a great price. Made...HKP-21573-M$8.95 -
H&K HK CC9 12 Round Magazine - Extended Floor Plate
H&K Heckler & Koch
$49.95H&K HK CC9 12 Round Magazine - Extended Floor PlateHKP-21572$49.95 -
H&K HK CC9 10 Round Magazine - Extended Floor Plate
H&K Heckler & Koch
$49.95H&K HK CC9 10 Round Magazine - Extended Floor PlateHKP-21571$49.95 -
H&K HK CC9 10 Round Magazine - Flush Floor Plate
H&K Heckler & Koch
$49.95H&K HK CC9 10 Round Magazine - Flat Floor PlateHKP-21570$49.95 -
HKP HK UMP 5 Prong Ported Flash Hider - 5/8x24
HKP HK Parts
$89.95HKP HK UMP 5 Prong Ported Flash Hider - 5/8x24 5-prong UMP ported flash hider designed for our new UMP 45 parts kit. Not only does it protect exposed threads, it also enhances the appearance of your firearm while delivering flash suppression. Compatible...HKP-21569$89.95 -
MI HK MP5K M-LOK Suppressor Handguard
MI Midwest Industries
$179.95MI HK MP5K M-LOK Suppressor Handguard The Midwest Industries M-LOK suppressor handguard is designed to fit over your suppressor for extra protection and extending mounting options. Made in the USA from 6061 aluminum for a lifetime of service...HKP-21563$179.95 -
Uzi Sling - Used
$24.95Uzi Sling - Used Original IMI sling used complete with steel buckle, two leather loops and steel tip keepers. Once they're gone, they're gone for good. Compatible With: Action Arms Uzi Micro & Mini SMG Model A&B carbine Semi-Auto Mini Carbine...HKP-21562$24.95