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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Uzi Sling
$49.95Uzi Sling - New Old Stock Original IMI sling new old stock complete with steel buckle, two leather loops and steel tip keepers. Once they're gone, they're gone for good. Compatibility: Action Arms Uzi Micro & Mini SMG Model A&B carbine Semi-Auto...HKP-21540$49.95 -
HKP HK 416 11" 5.56 Complete Upper Receiver Assembly
HKP HK Parts
$2,485.95HKP HK 416 11" 5.56 Complete Upper Kit Complete HKP 416 style complete upper assembly. This top-tier assembly seamlessly fits onto your mil-spec lower or a STS 416 lower, providing the perfect solution for those seeking an 11" 416 style upper without the...HKP-21539$2,485.95 -
HKP 90 Series F1 Flat Trigger
HKP HK Parts
$49.95HKP 90 Series F1 Flat Trigger With the utmost attention to detail in the design and manufacture of the HK Parts F1 flat 90 series trigger. Each F1 flat trigger will fit all 0,1 & SEF & Navy style trigger packs. Each trigger counts as one US...HKP-21537$49.95 -
HKP MP5K .40 S&W Pistol Build Kit
$2,289.95HKP MP5K .40 S&W Pistol Build Kit MP5K 10mm complete pistol build kit. Featuring the latest in highest quality components for an unparalleled build. Equipped with a 9/16x24 3-lug threaded barrel to accept a wide variety of muzzle devices and...HKP-21534$2,289.95 -
HKP MP5K 10mm Pistol Build Kit
HKP HK Parts
$2,289.95HKP MP5K 10mm Pistol Build Kit MP5K 10mm complete pistol build kit. Featuring the latest in highest quality components for an unparalleled build. Equipped with a 9/16x24 3-lug threaded barrel to accept a wide variety of muzzle devices and suppressors...HKP-21533$2,289.95 -
B&T HK G36/G36K NAR Mounting Rail
B&T Brugger & Thomet
$339.95B&T HK G36/G36K NAR Mounting Rail with Emergency Sight B&T NAR (picatinny compatible) mounting rail for HK G36/G36K with emergency sight. Compatible With: HK G36 HK G36KHKP-21529$339.95 -
HKP MP5 .22LR Picatinny Rail Stock Adapter
HKP HK Parts
$134.95HKP MP5 .22LR Picatinny Rail Stock Adapter Our rail stock adapter enables seamless attachment of any 1913 Style Stock or brace to your MP5.22. The 1913 style stocks & braces firmly lock in place, offering superior cheek weld height compared to...HKP-21526$134.95 -
RCM HK MP5 40/10 SD 115 Degree Locking Piece
RCM
$44.95RCM HK MP5 & MP5K 40/10 SD 115 Degree Locking Piece Compatible With: MP5/K 10 MP5/K 40HKP-21525$44.95 -
RCM HK MP5 40/10 SD 120 Degree Locking Piece
RCM
$44.95RCM HK MP5 & MP5K 40/10 SD 120 Degree Locking Piece Compatible With: MP5/K 10 MP5/K 40HKP-21524$44.95 -
HKP HK UMP 5 Prong Flash Hider - 5/8x24
HKP HK Parts
$67.95HKP HK UMP 5 Prong Flash Hider - 5/8x24 Compatible With: HK UMPHKP-21523$67.95 -
B&T G36 (5.56/.223) Flash Hider for M.A.R.S QD Suppressor
B&T Brugger & Thomet
$144.99B&T G36 (5.56/.223) Flash Hider for M.A.R.S QD Suppressor Compatible With: HK G36 5.56/.223 firearms threaded 15X1 RH Compatible with the Following Suppressors: M.A.R.S QD suppressor Specifications: Made in Switzerland Threaded 15x1 RH Does not...HKP-21522$144.99 -
Out Of Stock
RCM HK21 Barrel
RCM
$674.95RCM HK21 Barrel RCM HK21 are crafted from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance and aesthetic appeal. These barrels are the most cost-effective option to finish your HK21/FMP or HK11 build. You'll only need to add your own...HKP-21521$674.95 -
B&T HK 417/G36K Flash Hider
B&T Brugger & Thomet
$144.99B&T HK 417/G36K Flash Hider with Interface for Rotex III/V/VA Specifications: Made in Switzerland Threaded M15x1 NATO spec Does not include face shims Compatible With: HK G36K HK 417 APC223 APC556HKP-21520$144.99 -
HKP HK SP5 ACR Adapter
HKP HK Parts
$139.95HKP HK SP5 ACR Adapter We now offer the ultimate solution for converting the ACR Stock to be fully compatible with your MP5, SP5, and clones. Our cutting-edge aircraft grade aluminum MP5 ACR adapter comes with a pre-installed buffer, ensuring a seamless...HKP-21519$139.95 -
B&T HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH
B&T Brugger & Thomet
$144.99B&T HK G3/91 (7.62x51/.308) Flash Hider for M.A.R.S Suppressor - Threaded 15x1 RH Compatible With: HK G3/91/PTR HK417/MR762 HK PSG1 7.62x51/.308 firearms threaded 15x1 RH Compatible With the Following Suppressors: M.A.R.S QD...HKP-21518$144.99 -
H&K HK 416 A5 Trigger Guard - RAL 8K
H&K Heckler & Koch
$54.95H&K HK 416 A5 Trigger Guard: Check out the factory H&K A5 trigger guard, now available in the highly desirable Ral8000 anodized finish. This is the latest and greatest addition to complete your A5 416 build. Compatible With: HK 416 A3/A5 HK...HKP-21517$54.95 -
H&K HK 417/G28 Patrol Handguard - RAL 8K
H&K Heckler & Koch
$1,849.95H&K HK 417/G28 Patrol Handguard - RAL 8000 Anodize HK 417/G28/MR762 PATROL HANDGUARD in RAL Anodizing - a factory genuine "Made in Germany" product. This rare find is a must-have for gun enthusiasts and collectors alike. Compatible With: HK 417 HK...HKP-21516$1,849.95 -
MI/HKP HK MP5 .22 LR Alpha Folding Stock
MI Midwest Industries
$419.95Midwest Industries/HKP HK MP5 .22 LR Alpha Folding Stock Brace Adapter The Midwest Industries alpha folding stock paired with the HK Parts picatinny rail adapter offers unparalleled versatility. Adjust your length of pull, cheek riser, and butt pad to...HKP-21515-M$419.95 -
MI/HKP HK MP5K Alpha Folding Stock
MI Midwest Industries
$419.95Midwest Industries/HKP HK MP5K Alpha Folding Stock Brace Adapter The Midwest Industries Alpha folding stock paired with the HK Parts picatinny rail adapter offers unparalleled versatility. Adjust your length of pull, cheek riser, and butt pad to your...HKP-21514-M$419.95 -
HKP HK USP .45/Mark 23 Magazine Extension Kit +7
HKP HK Parts
$59.95HKP HK USP .45/MK23 - Magazine Extension Kit +7 This listing is for the magazine extension ONLY. This is not a complete magazine. The referenced magazine capacity is the total capacity once the extension has been...HKP-21513-M$59.95 -
MI/HKP HK MP5 Alpha Folding Stock
MI Midwest Industries
$419.95Midwest Industries/HKP HK MP5 Alpha Folding Stock Brace Adapter The Midwest Industries Alpha folding stock paired with the HK Parts Picatinny rail adapter offers unparalleled versatility. Adjust your length of pull, cheek riser, and butt pad to your...HKP-21512-M$419.95 -
HKP HK VP9 Optics Plate #12 - AimPoint ACRO Optic Mount - Aluminum
HKP HK Parts
$49.95HK VP9 Series Optics Ready #12 - Aimpoint ACRO - Optic Mount - Aluminum The finest all aluminum mounting solution for your HK VP9 series optic ready model. Each unit comes with 2 T20 steel torx plus screws for mounting the optic plate to your slide...HKP-21510$49.95 -
H&K HK21/FMP Drum Hanger & 100rd Drum
H&K Heckler & Koch
$1,288.95H&K HK21/FMP Drum Hanger & 100rd Drum Complete your HK21 or FMP21 build with the incredibly rare original H&K drum hanger and 100-round drum. These components have long been discontinued and are essential for completing a proper HK21 or...HKP-21509$1,288.95 -
H&K HK21E/HK23E Rear Sight Base
H&K Heckler & Koch
$79.95HKP HK21E/HK23E Rear Sight Base US manufactured. Compatible With: HK21E HK23EHKP-21508$79.95 -
B&T Direct Thread 1/2x28 Hub Adapter
B&T Brugger & Thomet
$114.95B&T Direct Thread 1/2x28 Hub Adapter Convert any barrel to accept Hub devices with this direct fit adapter. Compatible With: MP5/K & SP5/K MR556 AR15 Any 1/2x28 threaded barrelHKP-21506$114.95 -
HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin
HKP HK Parts
$49.95HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin The original thumb screw version for all stock block B's.HKP-21504$49.95 -
HKP HK MR556/HK416 FFRS Retaining Spring
HKP HK Parts
$4.99HKP 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 require...HKP-21503$4.99 -
Out Of Stock
H&K G36 IDZ Stock - Concave
H&K Heckler & Koch
$559.95H&K G36 IDZ Stock Concave When it comes to adjustable, folding G36 stocks, the IDZ tops the list. German made by HK with a concave buttpad for reliability and comfort. Features: 3 position forward & back 3 cheek piece elevation...HKP-21501$559.95 -
H&K HK 416 A5 Bolt Carrier Complete
H&K Heckler & Koch
$2,349.95German H&K HK 416 A5 Bolt Carrier Complete Get your hands on that critical puzzle piece for your factory-correct 416A5 build. Fully assembled and ready to drop into your uper receiver. Bolt carriers may be marked ".223 Rem" or "5.56 x 45"...HKP-21500$2,349.95 -
Comp-Tac HK P30L Lightcomp™ Holster
Comp-Tac
$79.95Comp-Tac HK P30L Lightcomp™ Holster Custom Comp-Tac OWB holster designed exclusively for your Lightcomp™ equipped P30L. Features: Made specifically for use with the HKP P30L Lightcomp™ 0.5" sight channel to accommodate most...HKP-21498-M$79.95 -
Strike Industries HK MP5 Stock with Cheek Riser
Strike Industries / HKP
$349.95Strike Industries HK MP5 Stock with Cheek Riser The Strike FSA folder paired with our MP5 picatinny adapter is one of the best options on the market for weight reduction and compact profile. The adjustable cheek riser allows the user to dial in the stock...HKP-21497-M$349.95 -
Grayguns HK45 Straight Trigger
Grayguns
$94.95Grayguns HK45 Straight Trigger The Grayguns HK45 straight trigger is a first-of-its-kind in the market. The trigger reduces over-travel while featuring a 90 degree optimal trigger break. Crafted in the US from heat-treated tool steel to...HKP-21496$94.95 -
HKP MP5 Parts Kit
HK Parts, Heckler & Koch
$2,749.95HKP MP5 Parts Kit Vintage flavor with modern flare. Our team set out to strike a symbiotic balance of classic MP5 with modern accessories delivered at an affordable price. The result is a build kit comprised of vetted components engineered to get...HKP-21495$2,749.95 -
MI HK MP5 1913 End Plate Adapter
MI Midwest Industries
$89.95MI HK MP5 1913 End Plate Adapter The Midwest Industries Picatinny end plate adapter opens up your stock and brace options to a myriad of off-the-shelf possibilities. The adapter installs in the same manner as the factory end cap with a single pushpin...HKP-21493$89.95 -
HKP G36C Parts Kit
HKP HK Parts
$1,199.95HKP G36C Parts Kit HK Parts brings you a complete G36 parts kit, loaded out with everything you need to complete a stripped receiver. Our parts kits will have the highest quality parts for ultimate reliability. As an added bonus, each of our parts...HKP-21492$1,199.95 -
HKP HK MP5 Picatinny Rail Optic Mount - Extended
HKP HK Parts
$109.95HKP HK MP5 Picatinny Rail Optic Mount HK Parts Picatinny style optic mount for the MP5 or MP5K. Quickly mount any Picatinny optic to your HK while retaining a full view of the factory sights. Available exclusively at HK Parts. Compatible With: HK...HKP-21489$109.95 -
MI HK MP5K Tri-Rail Handguard
MI Midwest Industries
$149.95MI HK MP5K Tri-Rail Handguard Features: Professional grade one-piece design Tri-Rail 1913 Picatinny on 3 sides for accessory attachment Simple installation, includes all tools Lightweight design Features two anti-rotation QD sling swivel...HKP-21486$149.95 -
MI HK MP5 Tri-Rail Handguard
MI Midwest Industries
$169.95MI HK MP5 Tri-Rail Handguard Features: Professional grade one-piece design Tri-Rail 1913 Picatinny on 3 sides for accessory attachment Simple installation includes all tools Extremely lightweight design Features two anti-rotation QD sling swivel...HKP-21485$169.95 -
HKP HK MP5 Aimpoint ACRO Sight - Extended
HKP HK Parts
$119.95HKP - HK MP5 Optic Mount - ACRO - Extended HK Parts now brings you one of the most requested optic mount for the MP5/MP5K platform. Extended design with a direct Aimpoint ACRO mounting interface. Our ACRO mounts provides an unobstructed view of the...HKP-21484$119.95 -
HKP HK MP5 Single Stage Semi Auto Trigger Pack - Ambi
HKP HK Parts
$579.95HKP/H&K MP5 9mm Single Stage Semi-Auto Ambidextrous Trigger Pack This trigger pack starts as a factory F/A trigger pack before being converted into a semi-auto trigger pack and receiving single-stage trigger work. This is the best option for...HKP-21483$579.95