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/HKP Century Arms AP51 Fixed Stock Backplate
HK Parts, Heckler & Koch
$89.95H&K/HKP Century Arms AP51 Fixed Stock Backplate HKP's drop-in replacement backplate and recoil rod is expertly modified to fit the Century Arms AP51. Crafted to the precise length for optimal function and dependable performance, this backplate allows...HKP-22188$89.95 -
HKP HK USPC Tactical 9mm MOD 1 Compensator - Threaded
HKP HK Parts
$189.95HKP HK USPC Tactical 9mm MOD 1 Compensator - Threaded 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...HKP-22185$189.95 -
H&K MR556 A4 13.4" Complete QD Handguard - Black
H&K Heckler & Koch
$509.95H&K MR556 A4 13.4" Complete QD Handguard - Black Genuine H&K MR556 A4 quick detach handguard has a Picatinny rail at 12 o’clock, M-LOK slots at 3, 6, and 9 o’clock, and two QD sling swivel cups for ambidextrous sling attachment. It...HKP-22184$509.95 -
H&K/HKP Century AP51 Fixed Stock - Cerakoted - Enhanced Buffer
H&K / HK Parts
$199.95H&K/HKP Century AP51 Fixed Stock - Cerakoted - Enhanced Buffer Each stock starts life as an excellent condition surplus stock. The stocks are then refinished and the recoil rod modified to work specifically with the AP51. Available exclusively...HKP-22183-M$199.95 -
HKP HK 91/G3 Extractor - Enhanced Coated Polish
HKP HK Parts
$24.95HKP HK 91/G3 Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...HKP-22182-M$24.95 -
HKP HK MP5/MP5K Extractor - Enhanced Coated Polish
HKP HK Parts
$44.95HKP HK MP5/MP5K Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible...HKP-22181-M$44.95 -
HKP HK USP .45 ACP 16X1 LH Thread Protector
HKP HK Parts
$19.95HKP HK USP .45 ACP 16X1 LH Thread Protector Thread protector for 16X1 left-hand .45 ACP barrels. Compatible With: HK USP .45 & Compact HK45 & Compact HK UMP/USC Firearms with 16X1 left-hand threaded .45 ACP barrels NOT compatible...HKP-22177$19.95 -
H&K HK MR556 A4 Operator's Manual
H&K Heckler & Koch
$19.95HK MR556 A4 Operator's Manual Official operator's manual for the HK MR556 A4, covering function, maintenance, and safety procedures.HKP-22176$19.95 -
HKP HK MP5 Extended Magazine Release - EMR - Streamline
HKP HK Parts
$44.95HKP HK MP5 Extended Magazine Release - EMR - Streamline Elevate your paddle style mag release with the streamlined extended mag release. Crafted from a solid billet of aircraft-grade aluminum and featuring a hard anodized finish, this lightweight...HKP-22175-M$44.95 -
Franklin Armory/H&K 53/93 & AP53 Binary Trigger Group- 3 Position Navy Engraved
FA Franklin Armory / H&K
$1,399.95Franklin Armory/H&K 53/93 & AP53 Binary Trigger Group- 3 Position Navy Engraved US-made binary trigger group installed in a German Navy-style polymer housing. Features a 3-position selector with 0,1,F pictogram markings. All three positions align...HKP-22170-M$1,399.95 -
Franklin Armory/H&K 53/93 & AP53 Binary Trigger Group- SEF Contoured
FA Franklin Armory / H&K
$1,399.95Franklin Armory/H&K 53/93 & AP53 Binary Trigger Group- SEF Contoured US-made binary trigger group installed in a German SEF contoured trigger housing. Features a 3-position selector marked SEF. All three positions align with binary selector...HKP-22169-M$1,399.95 -
Franklin Armory/H&K 53/93 & AP53 Binary Trigger Group- 3 Position 2 Round Burst Engraved
FA Franklin Armory / H&K
$1,399.95Franklin Armory/H&K 53/93 & AP53 Binary Trigger Group- 3 Position 2 Round Burst Engraved US-manufactured binary trigger pack installed in a German SEF-style polymer housing engraved with 0, 1, 2 pictogram markings. All three positions align with...HKP-22168-M$1,399.95 -
HKP CC9 Extended Base Plate
HKP HK Parts
$65.95HKP CC9 Extended Base Plate This +0 base plate gives your CC9 magazine the extended look and enhanced grip of a full-capacity mag without adding any rounds. Perfect for restrictive states or anyone wanting a streamlined, tactical appearance while staying...HKP-22167-M$65.95 -
H&K HK MP5 Stock Fork
H&K Heckler & Koch
$199.95H&K HK MP5/SP5 Stock Fork MP5 Replacement Stock Fork Section, expertly crafted in Germany. This robust fixed stock section boasts a classic forked design that guarantees exceptional shoulder support and enhanced control for your pistol. Whether you...HKP-22166$199.95 -
HKP HK P30 Magwell - Ultra Low Profile
HKP HK Parts
$59.95HKP HK P30 Magwell - Tactical Low Profile The smallest, lowest profile magwell available for the HK P30, now with a fully functional funnel for quicker, smoother reloads. Precision-machined from durable aluminum, it enhances performance without adding...HKP-22165-M$59.95 -
HKP HK MP5 30 Round Enhanced Magazine Spring
HKP HK Parts
$8.95HKP HK MP5 30 Round Enhanced Magazine Spring US-made enhanced 30-round magazine spring for the MP5. Provides improved feeding reliability and consistent spring tension. Compatible With: HK MP5/KHKP-22157$8.95 -
FN P90 LV Kit - Laser Visible - USED
FN
$4,899.95FN P90 LV Kit - Laser Visible - USED Extremely rare factory FN P90 LV (Laser Visible) parts kit with integrated laser sight manufactured by Laserex Technologies in Australia. This compact laser system has a flat panel integrated into the front end...HKP-22155$4,899.95 -
H&K 91/G3 (7.62x51/.308) A3 Retractable Stock - New Old Stock
H&K Heckler & Koch
$1,345.95H&K 91/G3 (7.62x51/.308) A3 Retractable Stock - New Old Stock New old stock genuine A3 retractable stock for 7.62x51/.308 rifles. These stocks have long been out of production from HK so grab one of the last new old stock units before they are...HKP-22104$1,345.95 -
HKP HK P30L MOD 1 XL Compensator - Black
HKP HK Parts
$189.95HK Parts MOD 1 XL Compensator: H&K P30L The MOD 1 XL comp delivers the iconic look of our original rail mount comp but in our updated MOD 1 structure. Like all MOD 1 comps, the P30L XL adds the versatility of an interchangeable Picatinny rail...HKP-22099$189.95 -
Comp-Tac HK CC9 Comp Carry Holster - RH
Comp-Tac
$59.95Comp-Tac HK CC9 Comp Carry Holster - Right Hand Designed for the HK CC9 with the HK Parts MOD 1 compensator, this holster offers a secure fit, smooth draw, and adjustable cant and ride height for optimal comfort and performance during concealed...HKP-22096$59.95 -
HKP HK CC9 IWB Clip - Minimalist
HKP HK Parts
$59.95HKP HK CC9 IWB Clip - Minimalist The HKP HK CC9 IWB clip offers a minimalist solution for absolute concealment. When a holster creates undesired printing, our IWB eliminates the bulk to keep the pistol safe from discovery. Our IWB clip fits snug...HKP-22095$59.95 -
HKP HK P30 MOD 1 Compensator - Black
HKP HK Parts
$189.95HKP HK P30 MOD 1 Compensator - Black The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker. Each MOD 1 comp includes both...HKP-22163$189.95 -
RCM Rollers, + & - Sizes
RCM
$8.95RCM Rollers, + & - Sizes RCM US-made locking rollers are available in both plus and minus sizes, making them the ideal choice for adjusting bolt gaps. These rollers are the top-tier locking rollers on the market, delivering unbeatable performance and...HKP-22094-M$8.95 -
H&K G3/91 (.22LR) Caliber Conversion Kit - LIKE NEW
H&K Heckler & Koch
$2,395.95H&K G3/91 (.22LR) Caliber Conversion Kit - LIKE NEW SOLD AS IS. NO RETURNS. Convert any HK91 or G3 rifle to cycle .22LR ammunition with this genuine H&K caliber conversion kit. This kit is intended for marksmanship training and low-cost shooting...HKP-22093$2,395.95 -
H&K HK G3 .22 LR 20 Round Conversion Magazine - NEW
H&K Heckler & Koch
$389.95H&K HK G3 .22 LR 20 Round Conversion Magazine - NEW This new old stock .22 LR 20-round magazine is designed for the G3 and HK91 .22 caliber training conversion kit. In new condition with the standard gray finish typical of G3/91 training magazines...HKP-22092$389.95 -
HKP HK MP5 SD Handguard Conversion
HKP HK Parts
$279.95HKP HK MP5 SD Handguard Conversion Convert your standard MP5 to the iconic SD-style look with this HKP HK MP5 SD handguard conversion. Designed for aesthetics only, this drop-in handguard gives your MP5 the suppressed SD appearance without requiring any...HKP-22091$279.95 -
Out Of Stock
MKE 30 Round AP53 Magazine
MKE
$54.95MKE 30 Round Magazine - Steel The MKE 30-Round Steel Magazine is a rugged, corrosion-resistant mag designed for the MKE 5.56 AP53 platform. Compatible With: Century Arms AP53HKP-22088$54.95 -
H&K HK MR556 A4 Gas Block- Incomplete
H&K Heckler & Koch
$187.00H&K HK MR556 A4 Gas Block - Incomplete The H&K HK MR556 A4 Gas Block is a high-quality, precision-machined component designed for the MR556 A4 rifle. It houses the gas system that directs gas from the barrel to cycle the action. Compatible...HKP-22087$187.00 -
HKP HK USPC .45 ACP MOD 1 Threaded Barrel Compensator
HKP HK Parts
$189.95HK Parts MOD 1 Compensator for Threaded Barrel: H&K USPC .45 ACP 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...HKP-22085$189.95 -
Nefarious Arms HK MR556 A3 & 416 A5 Barrel Nut
Nefarious Arms
$49.95Nefarious Arms HK MR556 A3/416 A5 Barrel Nut Replacement barrel nut for MR556 A3 and HK416 A5. Compatible With: HK MR556 A3 HK416 A5HKP-22082$49.95 -
B&T HK MP5K Adapter for Folding Stock
B&T Brugger & Thomet
$160.00B&T HK MP5K Adapter for Folding Stock Upgrade your MP5K platform with precision Swiss engineering. The B&T (Brügger & Thomet) HK MP5K Adapter for Folding Stock is designed to provide a secure and reliable mounting interface for...HKP-22081$160.00 -
HKP HK USP .45 ACP MOD 1 Compensator - Black
HKP HK Parts
$189.95HK Parts MOD 1 Compensator: H&K USP .45 ACP 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...HKP-22079$189.95 -
HKP HK VP9A1 F MOD 1 Compensator - Black
HKP HK Parts
$189.95HKP HK VP9A1 F MOD 1 Compensator - Black The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker. Each MOD 1 comp includes...HKP-22077$189.95 -
HKP HK VP9 Magwell - Ultra Low Profile
HKP HK Parts
$59.95HKP HK VP9 Magwell - Tactical Low Profile The smallest, lowest-profile magwell available for the HK VP9—now with a fully functional funnel for faster, smoother reloads. Precision-machined from durable aluminum, it enhances performance without bulk,...HKP-22076-M$59.95 -
H&K P7 M13 9mm Slide
H&K Heckler & Koch
$1,499.95H&K P7 M13 9mm Slide Factory German slide for the HK P7 M13 chambered in 9mm. Compatible With: HK P7 M13HKP-99170$1,499.95 -
H&K P7 PSP 9mm Slide
H&K Heckler & Koch
$1,589.95H&K P7 PSP 9mm Slide Factory German slide for the HK P7 PSP chambered in 9mm. These slides have been out of production for a very long time but we discovered one last unit in our inventory. The pictured slide is the actual part that will ship...HKP-99168$1,589.95 -
HKP HK USPC .45 ACP MOD 1 Compensator - Black
HKP HK Parts
$189.95HK Parts MOD 1 Compensator: H&K USPC .45 ACP 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...HKP-22072$189.95 -
HKP HK USPC 9mm MOD 1 Compensator - Black
HKP HK Parts
$189.95HK Parts MOD 1 Compensator: H&K USPC 9 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...HKP-22071$189.95 -
On Sale
H&K 91/G3 (7.62x51/.308) Enhanced Extractor
H&K Heckler & Koch
Now: $14.21Was: $18.95HK German HK G3, HK, 91 & PTR 91 .308 Enhanced Extractor New HK German extractors! We have a limited supply of top-notch new old stock extractors available at unbeatable prices. Each extractor features a micro-polished face for enhanced reliability...HKP-22070Now: $14.21Was: $18.95 -
SB Tactical HK 93/33/53 SBA5 Pistol Stabilizing Brace with Adapter
SB Tactical
$319.95SB Tactical HK 93/33/53 SBA5 Pistol Stabilizing Brace with Adapter SB Tactical combined with our HK 93/33/53 end cap creates a true drop-in brace, perfect for those seeking the flexibility that the SBA5 pistol stabilizing brace offers. With a 5-position...HKP-22069-M$319.95