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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Out Of Stock
H&K 9mm Barrel Flute Cleaning Brush
H&K Heckler & Koch
$0.00H&K 9mm Barrel Flute Cleaning Brush This HK-manufactured brush is a must-have for the proper care of your HK 9mm Rifle/Pistol, as the flutes need to be clean and free of carbon for proper function. A...HKP-00138$0.00 -
H&K HK MR556/416 Backplate w/ Sling Loops
H&K Heckler & Koch
$46.95HK 416, MR556 Ambidextrous Sling Loop Backplate Genuine HK German manufactured 416, MR556 new style backplate with sling loop. Compatible With: HK MR556, HK 416 buffer tubes All Standard AR-15, M4 & M16 buffer tubesHKP-17151$46.95 -
HK MP5 .22LR UMP Style Folding Stock
USA
$259.95HK MP5 .22LR - GSG9 UMP Style Folding Stock w/ HK Parts Stock Adapter New complete MP5 .22lr folding stock with GSG9 UMP style stock section. Each stock uses a UMP style stock for a longer length of pull and a includes a new CNC machined stock adapter...HKP-20167$259.95 -
HK Piston 3-Ring Replacement Set
H&K Heckler & Koch
$19.95HKP Gas Piston Ring Replacement Combo Set- 3 Rings The gas rings are prone to periodic breakage and wear and tear and require them to be replaced periodically. These are some of the most common breakage parts we see that need to be replaced on these...HKP-00048$19.95 -
Out Of Stock
B&T HK MP5K, SP5K Telescopic Stock
B&T Brugger & Thomet
$559.95B&T Telescopic Stock - HK MP5K, SP5K B&T Telescopic 5 position retractable stock for HK SP5K/MP5K and clones Compatible With: MP5K, SP5K style of firearms Specifications: Length adjustable in 5 positions Includes replaceable Elastomer bufferHKP-19862$559.95 -
H&K Grip Screw & Washer
H&K Heckler & Koch
$1.49H&K Grip Screw & Washer This is a surplus factory HK German part that is now out of production. Great to have as a spare and the cheapest price on the planet. Compatible With: G3 HK91 HK93 HK94 SP89 Other HK metal framed lowers with plastic...HKP-16335$1.49 -
HKP 93/91/33/53/G3/FMP21 (5.56/.223) & (7.62x51/.308) Rear Sight Base Weldment
HKP HK Parts
$29.95HK G3, HK91, PTR & HK93, 33 & 53, FMP21 Rear Sight Base Weldment New US manufactured billeted from solid ordnance grade bar stock. Perfect for roller lock or other custom builds. Each unit is precisely machined and the best rear base available...HKP-17386$29.95 -
HKP HK UMP .45 - Magazine Compliance Kit
HKP HK Parts
$19.95US-Made UMP .45 Compliant Magazine Kit For All UMP .45 Magazines This kit is a drop-in replacement set that will give you two US-compliant parts towards 922r compliance. Made from high-impact polymer, just like the factory HK parts. The US parts kit...HKP-01167$19.95 -
KES HK MP5K Tailhook
Safety Harbor Firearms
$279.95KES HK MP5K Tailhook The all-new KES for the MP5k is designed to fit HK clones with two pins affixing the rear receiver cap. Specifications: Guide rods slide into the existing slots present on the receiver Rods machined to go underneath the reinforcing...HKP-21089$279.95 -
Blitzkrieg HK MP5 Chevron Front Sight Gen 2 - Luminescent Green
Blitzkrieg Components
$56.99Blitzkrieg HK MP5 Chevron Front Sight Gen 2 - Luminescent Green The Blitzkrieg Gen 2 HK-style front sight provides a fast, bold sight picture with a sharp aiming point, designed for enhanced visibility and precision. The luminescent green chevron stripe...HKP-20452$56.99 -
H&K 91/G3 (7.62x51/.308) Rear Sight Assembly - Surplus
H&K Heckler & Koch
$14.95HK German G3, 91, PTR Rear Sight Assembly Good - Very Good HK German factory sight. We offer the finest used German HK sights at the BEST price in the country. Each German HK used sight was hand selected & picked from to be the finest examples of all...HKP-18092$14.95 -
HKP HK MP5 / MP5K Universal Optic Mount - Black
HKP HK Parts
$119.95HKP HK MP5 / MP5K Universal Optic Mount - Black Just in! Our latest and greatest MP5 style optic mount that is a true Universal mount. Using the same VP9 Optic ready format and optic plates you can now mount any optic mount that is compatible with any...HKP-20967$119.95 -
Out Of Stock
DTAC MP5, HK94 Modular Handguard-M-LOK
DTAC Dakota Tactical
$165.95DTAC MP5, HK94 Modular Handguard - M-LOK Features: Made in the USA (922r compliant part) M-LOK accessory compatible 11 ergonomically placed full-slots and 5 half-slots yielding 22 possible accessory locations for maximum versatility Exclusive extended...HKP-17806$165.95 -
GSG 22 Round GSG-5/GSG-16 .22LR Magazine - Black
GSG German Sports Guns
$29.95GSG 22 Round GSG-5/GSG-16 .22LR Magazine - Black The GSG magazine is a standard factory replacement magazine. The magazine is made from high-quality polymer and features a matte finish. Compatible...HKP-00794$29.95 -
H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power
H&K Heckler & Koch
$14.95H&K (5.56/.223) & (7.62x51/.308) Hammer Spring- Extra Power New HK German extra power hammer spring for all .308/.223 Semi & Full Auto Trigger Packs. This is a must have spare replacement part for your HK firearm parts bin. The heavy hammer...HKP-16447$14.95 -
H&K HK 416/MR556/MR762 Trigger Guard Pin
H&K Heckler & Koch
$3.95HK MR556 & HK 416 Trigger Guard Retaining Pin Compatible With: HK 416 HK MR556HKP-02678$3.95 -
H&K HK MR556/416 14.5"/16.5" Rear Diopter Sight
H&K Heckler & Koch
$199.95HK MR556 & 416 14.5"/16.5" Rear Diopter Sight HK German Rear Diopter Sight is the proper rear sight to pair with all HK 416 14.5, and MR556 uppers and rifles. This sight can be paired with a fixed front sight or folding front sight.HKP-00027$199.95 -
H&K 30 Round AR-15 5.56x45mm/.223 Magazine - Tan
H&K Heckler & Koch
$99.9530 Round Magazine with Window - Sand Tan - Gen 3 - Heckler & Koch Factory German Heckler & Koch 30-round Gen 3 polymer magazine. Compatible With: HK416 MR223 MR556 AR15 M16 M4 type riflesHKP-19358$99.95 -
H&K HK G36, SL8 Forearm, Lower, Magwell U.S Push Pin - Black
H&K Heckler & Koch
$18.95HKP HK G36, SL8 Forearm, Lower, Magwell U.S Push Pin - Black U.S. made G36 push pin finished in black oxide. This push pin is also required for converting the SL8 to a G36. G36's use three of these factory push pins per rifle whereas the SL8 has two.HKP-20730$18.95 -
Out Of Stock
H&K G36 (5.56/.223) Rear Stock Axle Pin
H&K Heckler & Koch
$24.95G36 Rear Stock Axle Pin For SL8 To G36 Stock Conversion New HK German manufacture. This is the axle pin that holds the G36 or G36C folding stock to the rear section of the receiver. Also used to mount the US-made rear stock block for those who are doing...HKP-00741$24.95 -
Out Of Stock
B&T HK MP5/SP5 Telescopic Stock
B&T Brugger & Thomet
$529.95B&T Stock Telescopic for MP5, HK SP5, AP5, ZF-5 The MP5 from Heckler & Koch is one of the most widely used submachineguns. B&T offers a selection of shoulder stocks for the MP5, SP5, MP5SD, MKE AP5, ZF-5 in order to adapt the weapon to...HKP-19352$529.95 -
H&K 91/G3 (7.62x51/.308) Cocking Handle Support
H&K Heckler & Koch
$17.95New HK German 91, G3, & PTR Cocking Handle Support A genuine German Heckler & Koch all-steel part. Compatible With: HK 91 HK G3 PTR-91 PTR-32 HK .308 Custom builds & clonesHKP-01442$17.95 -
HKP HK G36C Rear Stock - Black
$106.99HKP G36C Rear Stock HK G36C 9.5" rear stock assembly. One full inch shorter than the standard G36/G36K stock. Each G36C stock is compatible with all G36 variants. This is the preferred stock for average height end users. Compatible...HKP-18218$106.99 -
Choate MP5 Replacement Buffer For Folding Stock Or End Cap
Choate
$3.95Choate MP5 Replacement Buffer For Folding Stock Or End Cap Compatible With: Choate MP5 and MP5K Stocks or End Caps (NOT compatible with MP5 .22 LR)HKP-00116$3.95 -
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 -
PTR HK 91/G3 (7.62x51/.308) Cocking Handle
PTR
$25.95HK U.S. Made Cocking Handle - PTR Manufactured Compliant parts are hard to find and important for keeping your HK G3 & HK 91 build 922r compliant.HKP-00376$25.95 -
HKP - U.S MP5K Shoulder Rig Lanyard With Ring
$19.95HKP - U.S MP5K Shoulder Rig Lanyard With Ring For use with all HK shoulder harnesses to quickly deploy the stock when folded. This is the same style unit used by agencies such as the Secret Service, FBI etc. Our U.S lanyard is upgraded with a ...HKP-20855$19.95 -
HKP SEF Enhanced Ambi Selector Set - Navy Style
HKP HK Parts
$76.95Ambidextrous Selector Lever Set For SEF Navy Style Polymer Grip Frames Features: Made in the USA Billet machined enhanced left & right side selector lever set Latest HK style titanium detent, enhanced spring for positive movement between...HKP-18065$76.95 -
Franklin Armory / HKP HK MP5 Trigger Group – 2 Round Engraved Binary Housing
FA Franklin Armory / HKP
$1,299.95Franklin Armory BFSIII HK-C1/HKP MP5 Trigger Group – 2 Round Engraved Binary Housing - Clipped & Pinned 3 Position, 2 round burst style engraved pictograph – HK binary trigger group. Our latest and greatest Binary trigger group freshly...HKP-20969-M$1,299.95 -
HKP Leather MP5 Key Chain - Black/Silver
HKP HK Parts
$9.00HKP Leather MP5 Key Chain - Black/Silver Leather MP5 keychain with HK sling style clip.HKP-21452$9.00 -
PTR MP5 Tri-Rail Forearm
PTR
$149.95PTR MP5 Tri-Rail Forearm US made and comes with 3 independent 4" removable rails that are fully modular and able to add and remove at will. Made in the USA. Low profile and the most modular of any picatinny style forearm available. The Picatinny Rails...HKP-17782$149.95 -
H&K Rear Sight Spare, Repair Kit
H&K Heckler & Koch
$24.95H&K Rear Sight Spare, Repair Kit New factory German HK rear diopter sight spare parts, repair kit. Brand new factory German manufacture. Not used surplus parts brand new factory fresh German HK parts. Includes: 2 X Rear sight ball bearings 2 X Rear...HKP-16976$24.95 -
On Sale
HKP AR-15 Mil-Spec Buffer Tube
HKP HK Parts
Now: $14.95Was: $29.95Mil-Spec US Made Buffer Tube Compatible With: HK MR556 & 416 All AR-15 style platforms Features: Made From T7 7075 Aircraft grade aluminum 6 Position Made in the USA Each features a highly polished inside tube Black Mil-spec triple hard coat...HKP-02727Now: $14.95Was: $29.95 -
HKP MP5 & HK94 Steel Cocking Tube Support
HKP HK Parts
$49.95MP5 All Steel Cocking Tube Support 9mm - USA: Made entirely from ordnance grade stainless steel from the factory HK German print & specs. An HK German quality part at the best price. Each MP5 9mm cocking tube support will include the detent and...HKP-18040$49.95 -
HK Contract 3 Point Sling - OD Green
H&K Heckler & Koch
$52.95HK Contract 3 Point Sling - OD Green HK contract 3 point sling NIW. This is the best valued HK 3 point sling available for the HK 90 series of firearms. HK Green in color.HKP-19184$52.95 -
AIM HK 91/G3 (7.62x51/.308) Extended Rifle Length Handguard - M-LOK
AIM
$84.95HK G3 EXTENDED RIFLE LENGTH HANDGUARD- M-LOK The most innovative and modular HK variant handguard on the market, our M-LOK HK forend can be used with all modern and traditional shooting techniques. CNC machined aluminum construction makes for a solid,...HKP-18173$84.95 -
H&K 91/G3 (7.62x51/.308) Cocking Tube
H&K Heckler & Koch
$109.95HK German G3, 91, PTR Cocking Tube This is the factory-new part straight from HK Germany, and it is heat treated with the proper ribbed cocking tube extrusion. No longer in production and not POF or other low-quality production. HK G3 HK 91 PTR-91...HKP-01041$109.95 -
HKP 30 Round HK UMP 10mm Magazine - Black
HKP HK Parts
$139.95UMP, SMG - 30 Round Magazine - USA - 10mm Each 30 round magazine will fit the HK UMP 10mm caliber carbines, SMG's as well as the USC-UMP .40 to 10mm caliber conversions. Each magazine features, steel feed lips, enhanced polymer construction and all...HKP-19474$139.95 -
HKP Single Point Sling - OD Green
HKP HK Parts
$29.95HKP Single Point Sling - OD Green This high-quality sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point HK sling. Features: Super thick all OD Green heavy-duty Cordura nylon to withstand years of...HKP-09057$29.95 -
H&K MP5 & PDW Rear Sight Drum
H&K Heckler & Koch
$71.95MP5 Rear Sight Drum- German This item is the factory-correct rear sight drum for the MP5K PDW or MP5K-N family of firearms. This item is also a popular upgrade for many of the existing clones on the market, as many use factory-incorrect G3 rear sight...HKP-00072$71.95