Rifle / SMG Parts
Elevate Your H&K Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your H&K rifle with top-notch parts and accessories. From MP5 and MP5K to SP5 and UMP/USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, SP5K, G36, or MP5 22, we have the H&K rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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H&K MP5 40/10 Low Impulse Locking Piece #24
H&K Heckler & Koch
$129.95New HK German MP5 40 or MP5 10mm Low Impulse Locking Piece Marked #24 This is the factory 90-degree locking piece. Used for standard loads with low to average impulses. Compatible With: MP5 10 MP5 40 MP5 .357HKP-00438$129.95 -
H&K MP5 9mm Burst 4 Position Trigger Group - 0,1,2,F
H&K Heckler & Koch
$3,099.95H&K MP5 9mm Burst 4 Position Trigger Group - 0,1,2,F Each trigger group is brand new and factory fresh, directly from HK, designed specifically for push pin style factory MG's. The 4 position, 2 round burst MP5 trigger group is exceptionally rare and...HKP-01421$3,099.95 -
H&K MP5-A2 .40 S&W German Parts Kit
HKP HK Parts
$3,899.95HK MP5 40 S&W A German Parts Kit - Used Includes: Barrel - 3 lugs, threaded, and cold hammer-forged Trigger Group - Ambidextrous Navy 0,1, F Trigger Group A2 Fixed Stock Bolt Group Mp5 40 F/A Forearm - Standard wide black polymer Rear Sight...HKP-00891$3,899.95 -
H&K MP5-A3 40/10 Parts Kit - PD Trade In
H&K Heckler & Koch
$3,999.95HK MP5 40 S&W A3 German Parts Kit - Used Genuine German HK MP5 40 parts kit Barrel - 3 lugs & threaded, cold hammer forged Trigger Group - Ambidextrous FBI (0,1) pictogram A3 Retractable Stock - correct 40 cal stock Bolt Group - .40...HKP-00897$3,999.95 -
Out Of Stock
H&K MP5K 40/10 3 Position Navy Style Housing - Clipped & Pinned
H&K Heckler & Koch
$0.00H&K MP5K 40/10 3 Position Navy Style Housing - Clipped & Pinned This lower housing is clipped and pinned for use on a semi-auto receiver shelves. For more information on our clipping and pinning, see our services section. We offer the best...HKP-15454$0.00 -
H&K MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned
H&K Heckler & Koch
$179.95H&K MP5K 40/10 SEF Navy Style Housing - Clipped & Pinned New factory German housing that has the cutout for the bolt hold open found on the MP5 40/10 firearms. Specifications: Made In Germany Clipped & Pinned SEF Pictogram Markings Navy...HKP-20108$179.95 -
H&K Trigger Pack Housing - Semi 0,1
H&K Heckler & Koch
$129.95H&K 2 Position (0,1) Semi-Auto Trigger Pack Housing This trigger pack housing is professionally converted to semi-auto with all legal and correct modifications, including a semi-sear hole and trigger stop. It is designed to provide reliable...HKP-02177$129.95 -
Out Of Stock
H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Notched Disk - 3 Position
H&K Heckler & Koch
$0.00HK Ratched Wheel Notched Disk For 3 Position Lowers Compatible With: HK G36 HK UMPHKP-01854$0.00 -
Out Of Stock
H&K USC (.45 ACP) Lower Trigger Group - Used
H&K Heckler & Koch
$0.00HK German USC Lower Receiver - Complete - Used Includes all internal semi-auto stock USC trigger internals for a complete lower trigger group. Great spare for or the complete needed parts for doing a USC-UMP grease gun conversion or all German USC-UMP...HKP-18947$0.00 -
$29.95 -
HK 91/G3 (7.62x51/.308) Bolt Head - Stripped
$96.95New US Made Bolt Head- Incomplete: CNC machined from HK blueprints to precise tolerances that use the proper steel and heat-treat processes. You WILL NOT find a better quality offering of HK Parts anywhere. All of the bolt heads we offer on our website...HKP-16636$96.95 -
$16.95 -
HK G3 - FMP Early Type Demilled Front End
EBO
$99.95HK G3 - FMP Early Type Demilled Front End Early style G3 front end with no hanger. These are the perfect option for those doing custom builds. Good condition over all. Includes: Cocking tube Complete cocking handle assembly Trunnion Barrel pinHKP-20845$99.95 -
HK G36, SL8 Forearm With Heat Shield - Black
H&K Heckler & Koch
$115.99HK G36 & SL8 Forearm With Heat Shield - Black New HK German G36 & HK SL8 handguard with heat shield & bipod attachment & sling loop point. A drop in part for your HK G36 or SL8 rifle.HKP-00271$115.99 -
$9.95 -
HK German Locking Roller Standard 8mm - Used
H&K Heckler & Koch
$9.95HK German Locking Roller Standard 8mm - Used The 8mm roller is the proper roller size for standard "zero" function. The correct 8mm roller is essential for proper head spacing & bolt gap. Used HK German. HK locking roller, standard, 8mm. HK German...HKP-20600$9.95 -
HK MP5/94 US Made Trigger Group 5 US Made Compliant Parts w/ Flat Trigger
USA
$489.95HK MP5/94 US Made Trigger Group 5 US Made Compliant Parts w/ Flat Trigger HK MP5/94 9mm Semi Auto Trigger Group Complete. Each Trigger Group incorporates the following 922r-compliant parts: US made sear US made hammer US made flat trigger US made...HKP-19938$489.95 -
HK MP5/K Barrel Extension Faux Suppressor - Threaded 15x1 RH
USA
$179.95HK MP5/K Barrel Extension Faux Suppressor - 15x1 RH Perfect for that rifle build or for those looking for the MP5KN suppressed look. Dakota tactical review of this exciting new product on an MP5: DTAC Suppressor Review Specifications: Overall length: 8...HKP-20890$179.95 -
HK UMP/USC/SL8/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Fixed Rear Sight Flat Spring
H&K Heckler & Koch
$8.95HK G36, SL8 & USC, UMP Fixed Rear Sight Flat Spring Compatible With: G36 SL8 USC. 45 UMP 9mm UMP .40 UMP .45HKP-16635$8.95 -
HKP 53 (5.56/.223) Cocking Tube - Lefties
HKP HK Parts
$99.95HK53 Length Cocking Tube - For Left Handed Shooters New HK53, HK51 cocking tube made in the US. Made to the exact HK specifications as the factory HK53 German cocking tube. This is the only factory correct HK53 cocking tube available as HK Germany does...HKP-19028$99.95 -
HKP AR-15 Commercial Buffer Tube Kit
HKP HK Parts
$47.95AR-15 Commercial Buffer Tube Kit Compatible With: HK MR556 & 416 All AR-15 style platforms Includes: Made with T7 7075 aircraft-grade aluminum Made in the USA with a polished inside tube Mil-Spec triple hard coat Teflon anodized...HKP-02736$47.95 -
$25.95 -
HKP HK 416/MR556 7" M-LOK Quad Rail - Black
HKP HK Parts
$199.95HKP 7" M-LOK Quad Rail - Black Compatible With: HK 416 HK MR556HKP-17986$199.95 -
HKP HK 91/G3 (7.62x51/.308) Ambidextrous Trigger Pack (0,1) - Match Trigger
HKP HK Parts
$474.95HKP/H&K G3/91 (7.62x51/.308) 2 Position 0,1 Ambidextrous Match Trigger Pack Complete with custom trigger conversion to achieve a light target trigger with an ultra-smooth pull. This HK German semi-auto trigger pack has been enhanced by...hkp-18425$474.95 -
Out Of Stock
HKP HK G36K Barrel
HKP HK Parts
$499.95HKP HK G36K Barrel Brand new HK G36K barrel made from 416 stainless steel and nitrided, uninstalled & unfired. The G36K barrel uses a factory German or USA spec G36K/G36C gas block. Counts as one USA made complaint part. Perfect for the SL8/G36 style...HKP-18194$499.95 -
HKP HK MR556/CR556/MR762 H-Key 11 Rail Segment
HKP HK Parts
$34.95HKP HK MR556/CR556/MR762 H-Key 11 Rail Segment 11 slot rail segment for the new "HKey" style forearms. This rail section is designed to fit and attach to any of the new HKey style forearms now being shipped on the MR556, CR556, MR762 and similar models...HKP-17845$34.95 -
Out Of StockOn Sale
HKP MP5 & HK94 Vertical K Grip Adapter - BLEMISHED
HKP HK Parts
Now: $32.95Was: $49.95HK Vertical K Grip Adapter For HK MP5 & HK94 (Adapter Only) COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This is the adapter needed to add an MP5K K grip...HKP-00175-BNow: $32.95Was: $49.95 -
HKP MP5 & MP5K 9mm Ambidextrous 0,1 Trigger Pack
HKP HK Parts
$439.95HKP MP5 & MP5K 9mm Ambidextrous 0,1 Trigger Pack Finally a lower cost alternative to the spendy and hard to find all German HK FBI or 0,1 ambi trigger packs. Now for the first time, we have the ever popular trigger pack available in an...HKP-17230$439.95 -
HKP MP5 .40 S&W RS Reverse Stretch Parts Kit
HK Parts, Heckler & Koch
$2,099.95MP5 .40 Reverse Stretch Pistol Build Kit Complete German & USA Made Parts MP5 .40 Reverse Stretch parts kit complete with all the parts needed for an MP5.40 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be...HKP-19819$2,099.95 -
HKP MP5 40/10 Full Auto Bolt Carrier
HKP HK Parts
$149.95HKP MP5 40/10 Full Auto Bolt Carrier Machined completely from billet ordnance steel. This carrier is made to the latest specs and is Tungsten filled, and heat treated providing the finest American made carrier available. Not to be confused with cheap...HKP-18363$149.95 -
HKP MP5SD 40/10 110 Degree Locking Piece
HKP HK Parts
$49.95MP5 40 & MP5 10mm SD 110 Degree Locking Piece - USA Made in the USA from an enhanced material and heat treated to factory specifications. Each US made MP5 40/10 SD 110 degree locking price is designed for use with the MP5 40/10 SD variants...HKP-18274$49.95 -
HKP MP5SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger
$2,499.95HKP MP5SD 9mm Pistol Build Kit With Flat, Top Rail & Weldment Set - SEF Binary Trigger MP5SD 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as...HKP-20524$2,499.95 -
JMAC Universal Picatinny 6" Skeletonized Tube with 1913 Folding Mech
JMAC Customs
$227.90JMAC 6" Skeletonized Tube with 1913 Folding Mech This M4 tube adapter replaces the standard buffer tube to ensure the stock folds as flat as possible! Fits most M4 style stocks/braces Features: Integrated QD Sling Sockers 6” Length 6...HKP-21244$227.90 -
Out Of Stock
KAC HK 91/G3 (7.62x51/.308) - RAS - Modular Forearm - RARE!
H&K Heckler & Koch
$0.00HK G3, HK91, PTR Modular Forearm System -Knights Armament Genuine KAC has not been in production for years. New in box, old stock the final and only last units that HK Germany had stashed. Each HK G3 RAS unit comes with factory box, spec install sheet,...HKP-18226$0.00 -
KDG HK MR556 10" M-LOK Rail System - FDFE
KDG Kinetic Development Group
$374.95Rail System - 10" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like the...HKP-19240$374.95 -
Out Of Stock
KNS Precision HK Push Button Take Down Pin - Large
KNS Precision
$24.99KNS Precision HK Push Button Take Down Pin - Large .275" This 7mm (.275") diameter take-down pin has a spring-loaded push button. When the button is depressed, the stainless steel keeper detents retract for easy pin removal. The pin is designed to...HKP-21388$24.99 -
Out Of Stock
KNS Precision HK Push Button Take Down Pin - Small
KNS Precision
$24.99KNS Precision HK Push Button Take Down Pin - Small .234" This 6mm (.234") diameter take-down pin has a spring-loaded push button. When the button is depressed, the stainless steel keeper detents retract for easy pin removal. The pin is designed to...HKP-21389$24.99 -
On Sale
Lee Sporting HK MP5 Complete Trigger Group Push Pin
Lee Sporting
Now: $499.95Was: $549.95Lee Sporting Complete Trigger Group - MP5 Push Pin Ergonomic upgrade to OEM grip. 4.3oz lighter than OEM trigger group. Housing made from MJF PA11 Nylon. Bespoke ejector lever CNC cut from 4140. Compatible With: HK PTR Dakota Tactical Other clones...HKP-20467Now: $499.95Was: $549.95 -
Magpul HK MP5 & HK94 MOE SL-S Stock - Black
Magpul
$234.95Magpul MOE SL-S- MP5 , HK94 Magpul MOE SL-S MP5 ,HK 94 complete stock ready to drop in. Great option for those looking for different length options. Sleek and perfectly designed. The sleek profile, dual-side release latches, and waterproof battery tubes...HKP-20488$234.95 -
Magpul HK MP5, HK94, HK93 MOE SL-K Stock - OD Green
Magpul
$189.95Magpul HK MP5, HK94, HK93 MOE SL-K Stock - OD Green Magpul MOE SL-K MP5 ,HK 94, HK93 complete stock ready to drop in. Great option for those looking for different length options. Sleek and perfectly designed. The SL-K is designed for compact PDW style...HKP-20491$189.95