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 91/G3 (7.62x51/.308) Enhanced Trigger Pack - Match
H&K Heckler & Koch
$439.95H&K 91/G3 (7.62x51 / .308) Enhanced Trigger Pack - Match HK German SEMI .308 trigger pack complete with custom trigger conversion to a light target trigger & ultra-smooth pull Each trigger pack has been customized by the famed & renowned HK...HKP-17014$439.95 -
H&K UMP (.40 S&W/.45 ACP/9mm) Magazine Floor Plate
H&K Heckler & Koch
$9.95HK German UMP Floorplate For All UMP Magazines Compatible With: UMP .45 UMP .40 UMP 9mm These can become cracked or broken with use or drops onto hard surfaces.HKP-16493$9.95 -
HKP HK MP5K QD End Cap with Buffer - Black
HKP HK Parts
$44.95Quick Detach MP5K, SP-89 Steel End Cap With Replaceable Rubber Buffer Compatible With: MP5K SP89 Clone or other custom buildsHKP-20117$44.95 -
JMAC Universal HRD M-LOK Handstop
JMAC Customs
$49.95JMAC HRD M-LOK Handstop (H)and(R)etention(D)evice Compact, lightweight, & reversible. Features: M-LOK Compatible Fits in and across M-LOK Slots Includes mounting hardware 7075 T6 Aluminum Hard Coat Anodized The quarter-turn T-slot nuts have...HKP-21235$49.95 -
SB Tactical HK MP5 .22LR Folding Brace - Skeletonized
SB Tactical, HKP HK Parts
$249.95Side Folding Brace For The HK MP5 .22 model A drop in folding brace for your MP5 .22 model pistol. Made from aircraft grade aluminum, QD sling attachment point and a beautiful anodize finish. This is the finest option for your MP5 .22 pistol. Available...HKP-21053$249.95 -
Surefire - 628LMF - Lighted Forearm
Surefire
$579.95Surefire - 628LMF - Lighted Forearm The 628 LMF generates 1000 lumens of output and has a tactical runtime of 2 hours per set of batteries, with gradually decreasing output afterward. Surefire 628LMF Features: Virtually indestructible LED and...HKP-03285$579.95 -
H&K HK 416/417/MR556/MR762 Takedown Pin Detent Spring
H&K Heckler & Koch
$6.95HK MR556, HK 416, HK MR762, & HK417 Takedown Pin Detent Spring New HK German manufacture. Detent spring for the rear takedown pin. Compatible With: HK 416 HK MR556 HK MR762 HK 417HKP-02541$6.95 -
H&K HK G3, HK 91, PTR Central Buttstock Section - OD Green - Used
H&K Heckler & Koch
$5.99H&K HK G3, HK 91, PTR Central Buttstock Section - OD Green - Used USED German G3, 91, PTR Central Butt stock Section- Green in color. This stock section is no longer being manufactured as the HKG3, HK91 are out of production. Each surplus section is...HKP-17139$5.99 -
H&K HK MP5 & HK 94 Slimline Forearm - Black
H&K Heckler & Koch
$69.95H&K HK MP5 & HK 94 Slimline Forearm - Black Used German military slimline forearm refinished and cerakote in a black finish. Modified to fit the MP5 & SP5. These are rare items only offered here at HK Parts. Each item is in good to...HKP-20274$69.95 -
H&K MP5, MP5K, SP5, 94 & SP89 Cocking Handle
H&K Heckler & Koch
$44.95HK MP5, 94 & MP5K, SP89, SP5K Cocking Handle - German New factory HK German latest manufactured and updated style. This part is the current model that HK is equipping all new HK MP5/MP5K variants with. Made to last and the nicest of all the...HKP-00095$44.95 -
HK Parts MP5K Folding Stock Buffer
HKP HK Parts
$9.95HK Parts MP5K Folding Stock Buffer This item used to replace the factory HK buffer on MP5K folding stocks and end cap. This is only usable on the factory OEM stock and end cap. This buffer can also be used as a replacement buffer for all of MP5/MP5K...HKP-20833$9.95 -
HKP 2 Point Leather Sling - Black
HKP HK Parts
$49.95HKP 2 Point Leather Sling - Black These new HK Parts 2-point slings are based off of the original German HK design that are no longer offered. This is a 1st time offering, handcrafted by a German artisan. Made in the USA from quality leather and hardware...HKP-20152$49.95 -
HKP HK UMP .45 ACP Magazine Block
HKP HK Parts
$9.95HKP HK UMP .45 ACP Magazine Block UMP mag block plug to limit the magazine capacity to 10 rounds for states with capacity restrictions. This is designed to use on the HK UMP .45 25 round magazine. Very easy to install & use. Compatible With: HK UMP ...HKP-18171$9.95 -
HKP MP5 & HK94 Vertical K Grip Adapter
HKP HK Parts
$49.95HK Vertical K Grip Adapter For HK MP5 & HK94 (Adapter Only) This is the adapter needed to add an MP5K K grip to your HK94, MP5, or clone.HKP-00175$49.95 -
On Sale
Shield Sights HK SP5 Mini Sight 2.0 and Mount - 8MOA - Glass Lens
Shield Sights
Now: $249.95Was: $399.95Shield Sights HK SP5 Mini Sight 2.0 and Mount - 8MOA - Glass Lens Includes: Mount Features: Light source: Red light emitting diode (LED) No laser; completely eye safe No radioactive materials Red dot zize: 8 MOA dot Lens: Glass, reflex x1 (no...HKP-20552Now: $249.95Was: $399.95 -
Out Of Stock
Strike Industries M-LOK Bikini Hand Stop
Strike Industries
$13.95Bikini Hand Stop (2-pack) Strike Industries The Strike Industries Bikini Hand Stop (BHS) gives the shooter increased ergonomics and control of the weapon. The hand stop is made from durable and lightweight polymer compatible with M-LOK rails. The BHS is...HKP-20057$13.95 -
H&K 33/91/G3 Triple Frame Front Sight Tower
H&K Heckler & Koch
$19.95Front Sight Tower Triple Frame G3/33 - German G3 triple frame all steel factory German front sight tower. Perfect for HK builds as well as HK-AK style sight conversions and builds. Compatible With: HK G3 HK G3K HK 93 HK 33HKP-18778$19.95 -
H&K Bungee Single Point Sling - 1250mm Long
H&K Heckler & Koch
$109.95H&K Bungee Single Point Sling - 1250mm Long New factory HK German manufactured single point elastic "push/pull" bungee style sling. Includes the factory sling hook and is fully adjustable for the average sized mag to use. Will fit any HK application...HKP-17604$109.95 -
H&K HK MR556/416 Buffer Retaining Pin
H&K Heckler & Koch
$15.95HK 416 & MR556 Buffer Retaining Pin New HK German proprietary HK designed buffer pin unique to the HK 416 and MR 556 series. Compatible With: HK MR556 HK 416 HK M27HKP-02544$15.95 -
H&K MP5 & 93/53/33 (9mm & 5.56/.223) SEF Navy Style Polymer Housing - Push Pin
H&K Heckler & Koch
$129.95H&K MP5 & 93/53/33 (9mm & 5.56/.223) SEF Navy Style Polymer Housing - Push Pin Upgrade your older SEF contoured trigger pack with this Navy Style polymer housing, designed to enhance the look and feel of your HK firearm. Specifications: Push...HKP-02462$129.95 -
H&K MP5, 93/53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped & Pinned - USED
USA
$119.95H&K MP5, 93/53, G3 (9mm, 5.56/.223, 7.62/.308) 3 Position (S,U,O Pictogram) Contract Housing - Clipped & Pinned - USED Upgrade your HK93 or HK53 with this S,U,O polymer lower housing, a Malaysian contract housing designed for SEF type trigger...HKP-20031$119.95 -
H&K MP5/SP5 9mm SEF Universal Trigger Housing - Clipped & Pinned - USED
H&K Heckler & Koch
$99.95H&K MP5/SP5 9mm SEF Universal Trigger Housing - Clipped & Pinned - USED A one size fits all approach for the MP5 and SP5 style semi-auto shelf. This is the best option if you have a MP5 receiver or a SP5. You can easily swap the lower trigger...HKP-21346$99.95 -
H&K UMP (.45 ACP) Magazine Follower
H&K Heckler & Koch
$14.95HK UMP .45 Magazine Follower New HK German factory UMP .45 magazine follower for all HK UMP .45 magazines. Compatible With: UMP 45 magazines- both US or GermanHKP-16342$14.95 -
Magpul HK 91 MOE PR Stock
Magpul
$199.95Magpul HK 91 MOE PR Stock The MOE PR is a full-size carbine stock that blends the simplicity of the legacy MOE carbine stock with design lines reminiscent of the PRS Lite. These similarities naturally incorporate some of the features found on the PRS...HKP-21198$199.95 -
UTG Vertical Grip With LED Light & Quick Detach Mount
UTG
$89.95UTG Vertical Grip With LED Light & Quick Detach Mount Features: UTG combat aluminum foregrip with integral LED flashlight Cree Q5 LED diodes Integrated reflector and light bulb to provide instant spot focus for clear object...HKP-13184$89.95 -
Out Of Stock
H&K SEF Long Axle Selector Lever For Polymer Trigger Housings - Extended
H&K Heckler & Koch
$0.00HK German SEF Extended Axle Selector Lever For Polymer Housings - Extended The HK Extended SEF Long Axle Selector Lever is designed for use with polymer SEF-type grips or trigger housings. This extended lever provides enhanced control and ease of use,...HKP-19027$0.00 -
HKP 53 (5.56/.223) Cocking Tube
HKP HK Parts
$99.95HKP 53 (5.56/.223) Cocking Tube New 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 not offer this part separately...HKP-00197$99.95 -
HKP 9mm A2 Style Flash Hider - 3-Lug
HKP HK Parts
$99.95HKP 9mm A2 Style Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels found on in...HKP-19520$99.95 -
HKP Single Point Leather & Cotton Sling
HKP HK Parts
$59.95Single Point Leather & Cotton Sling Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a...HKP-21321-M$59.95 -
Magpul HK SP5K SL Grip Module
Magpul
$219.95 - $239.95Magpul HK SP5K SL Grip Module HK Parts brings a solution for those wanting to upgrade to the Magpul SL grip. This is a perfect option for those wanting improved ergonomics and a modern aesthetic. The pictograms are hand-painted to match the factory...HKP-20945-M$219.95 - $239.95 -
HK .45 ACP Titanium Thread Protector - Threaded 16x1 LH
$24.95HK .45 ACP Titanium Thread Protector - Threaded 16x1 LH Crafted from solid titanium, this tactical thread protector fits all HK45 full-size and compact barrels threaded 16x1 LH. Essential for safeguarding your threaded barrels and exposed threads, it...HKP-17942$24.95 -
HK 416/417 Buffer Retainer Spring
USA
$2.95HK 416 / HK417 Buffer Retainer Spring This item is the spring for the buffer retainer that is held in the rear of the lower receiver. Compatible With: HK 416 HK 417HKP-20036$2.95 -
HKP MP5, MP5K Scope Tab - Weldment
HKP HK Parts
$9.95MP5, MP5K Sight Tab- Weldment New HK MP5, MP5K 17-4 Stainless H900 rear sight tab. The most correct & finest MP5, MP5K rear sight base available. If you want your build to look as factory correct as possible then this sight base is an absolute must...HKP-17503$9.95 -
MM Fixed Stock Heavy Rubber Buttpad
Michaels Machines
$79.95MM Fixed Stock Heavy Rubber Butt pad This part gives a larger surface area to spread the recoil absorption with a wider surface (less felt recoil). It adds an aggressive look and feel to your HK and is US-made with a lifetime warranty by the...HKP-00914$79.95 -
MP5 9mm Reverse Stretch Recoil Assembly
$37.95Complete Recoil Rod Assembly For The MP5 Reverse Stretch New US made MP5 reverse stretch or MP5 Full size compact recoil rod assembly complete micro polished and built of the finest materials to make the finest US made recoil assembly available. All...HKP-16580$37.95 -
Nefarious Arms HK 416 Reaction Rod
Nefarious Arms
$129.95Nefarious Arms - Reaction Rod - HK 416 The Nefarious Arms H&K 416 Reaction Rod is used to securely hold the upper receiver in a bench vise so that work may be performed on the muzzle device. It is inserted through the rear of the upper receiver...HKP-21272$129.95 -
Ambi Housing- Franklin Armory Binary Selector Set - Skeletonized - HKP
HKP HK Parts
$79.95HKP/H&K MP5/K 9mm Selector Lever Set For Franklin Armory BFSIII HK Binary Trigger Pack - Aluminum Skeletonized Our new skeletonized aluminum selector lever set was modeled after the HK ambi style selector lever and modified for a more cleaner...HKP-20470-M$79.95 -
Blitzkrieg PTR Chevron Front Sight Gen 2 - Orange
Blitzkrieg Components
$56.99Blitzkrieg PTR Chevron Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight provides a bold, fast sight picture with a bright orange chevron for quick target acquisition. The sight face is moved forward for enhanced...HKP-20453$56.99 -
H&K 93/53/33 (5.56/.223) Firing Pin Spring
H&K Heckler & Koch
$9.95New HK German 93, 33, & 53 .223/5.56 Firing Pin Spring. A must-have spare part as this is a high wear and replacement item. Compatible With: HK93, 33, 53 V93/V53, C93, C53 Custom builds and clonesHKP-00193$9.95 -
H&K G36K Gas Piston Rod/Spring Assembly
H&K Heckler & Koch
$89.95New HK German G36K Gas Piston Rod/Spring Assembly Great for spare parts or to use on that HK SL8-G36 conversion.HKP-00284$89.95