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 HK MR556/416 Right or Left Side Safety Selector
H&K Heckler & Koch
$39.95HK German MR 556 & HK 416 Safety Lever- Right Or Left Side: HK German manufactured right or left side selector lever for the ambidextrous controls of the HK 416, MR556 family of firearms. It will work for both semi and select-fire models. Each set...HKP-15250$39.95 -
H&K HK MR556/416 Threaded Pin for Buttstock Insert
H&K Heckler & Koch
$4.95HK MR556, HK416 Threaded Pin For E1/E2 buttstock Release Lever Insert New HK German manufactured E1/E2 stock release and tightening screw that takes the slack and slop out of the stock when in desired position. Compatible With: HK MR556 HK 416HKP-16604$4.95 -
H&K HK MR556/MR762/416/417 Disconnector
H&K Heckler & Koch
$18.95HK German HK416, MR556, MR762, & HK417 Disconnector For Lower New HK German manufactured part. This is the latest generation of HK disconnector for the HK MR and HK 416/417 family of firearms. Please Note: HK has changed the design of this part at...HKP-02674$18.95 -
HK 91/G3 (7.62x51/.308) Bolt Head Complete - US Made
$149.95Bolt Head - Complete This item is a complete bolt head using a combination of new HK German and New US-made parts. This part counts as 1 US-made compliant part for the 922r compliance. Compatible With: HK 91 HK G3 PTR-91 SAR3/8 Other HK .308 Clones or...HKP-00839$149.95 -
HKP HK MR556/CR556/MR762 H-Key 8 Rail Segment
HKP HK Parts
$29.95HK MR556, CR556 & MR762 HKey Rail Segment - 8 Slot 8 slot picatinny 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...HKP-17844$29.95 -
On Sale
HKP HK UMP G36 Curved Trigger
HKP HK Parts
Now: $79.95Was: $99.95HKP HK UMP & USC - Curved Trigger With our new curved trigger, you will improve the aesthetics of your firearm. Our curved trigger has spaced-out serrations at the face of the trigger for a far superior grip. Each trigger counts as one US-made...HKP-21126-MNow: $79.95Was: $99.95 -
HKP MP5 Stock Adapter - Black
HKP HK Parts
$149.95HKP MP5 Stock Adapter - Black Our HK Parts stock adapter was made from a solid billet of CNC machined aircraft grade aluminum with QD sling attachment points. Properly buffered with factory correct “H” buffers to protect your valuable firearm...HKP-20677$149.95 -
HKP MP5K/SP89/SP5K 9mm AR/M4 Adapter & Stock Assembly
HKP HK Parts
$229.95HK MP5K, MP5K-N AR Magpul Stock Each HK MP5K AR stock adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct H buffers to protect your expensive firearm. This is the finest AR stock adapter...HKP-17175$229.95 -
HKP MP5K/SP89/SP5K 9mm Cocking Tube & Support Set
HKP HK Parts
$129.95HKP MP5K/SP89/SP5K 9mm Cocking Tube & Support Set Specifications: Construction: Hard Coated Titanium Color: Matte Black Weight: 1.7 oz. Compatible With: HK MP5K HK SP89 HK SP5K MP5 Reverse stretch builds, clones, or other custom buildsHKP-00184$129.95 -
MI Pistol Brace Compatible Side Folder
MI Midwest Industries
$129.95MI Pistol Brace Compatible Side Folder For use with Gear Head Works Tailhook Pistol Brace Features: Made in the USA Heavy duty side folding mechanism constructed from 4140 steel Full length locking lug for maximum strength. Solid positive...HKP-19959$129.95 -
Strike Industries HK MP5K Dual Folding Stock with Adapter
Strike Industries / HKP
$319.95Strike Industries Dual Folding Stock with HKP MP5K Adapter The Strike Dual Folding Adapter paired with our MP5K picatinny adapter is one of the best options on the market for those looking for weight reduction and a compact configuration. Multiple QD...HKP-21428$319.95 -
Surefire 12-Pack 123A Batteries
Surefire
$29.95Surefire 12-Pack 123A Batteries Made in the USA and the "gold standard" in battery performance. These are the best performance, longest lasting 123 batteries available. The price is for a box of 12 new batteries. Ideal for use with lasers, lights,...HKP-02711$29.95 -
Timney Triggers MP5 9mm 2-Stage Trigger
Timney Triggers
$489.95Timney Trigger for MP5 9mm The Timney HK MP5 trigger is factory-set with a two pound first stage and a two pound second stage that elevates the platform so the shooter can achieve the utmost in accuracy. This offering comes complete with a Factory German...HKP-20507$489.95 -
F5 MFG HK MP5 .22LR Modular Stock System - Black
F5 MFG
$349.95Modular Stock System with MP5 .22 Adapter Features: HK MP5 22 compatible adapter 6061 AL and nylon 6/6 polymer construction Integrated locking hinge Adjustable cheekwell 7 adjustable length positions 3in length of pullHKP-20196$349.95 -
H&K 93/53/33 (5.56/.223) Backplate - Painted
H&K Heckler & Koch
$69.95Steel Back Plate For HK93, 33, 53 & MP5, 94- Painted HK Black HK German backplate with the recoil assembly cup guide installed. Each unit comes complete & freshly painted HK Black. Manufactured from German HK backplates with factory tooling...HKP-16254$69.95 -
H&K HK 416/MR556 Trigger Guard Assembly
H&K Heckler & Koch
$54.95HK MR556 & HK 416 Trigger Guard Assembly New HK German part that protects the trigger from an accidental discharge. Compatible With: HK 416 HK MR556HKP-02545$54.95 -
H&K HK G36/SL8 Extractor
H&K Heckler & Koch
$79.95G36 & HK SL8 German Extractor For Bolt Head New HK German. This is a great item to keep as a spare. Compatible With: All G36 Variants SL8-1, SL8-6HKP-00287$79.95 -
H&K HK MR556/416/G36 Cleaning Kit
H&K Heckler & Koch
$79.95HK Factory German G36, HK416, & MR556 Complete Cleaning Kit Each kit includes the following parts: Saf-T-Clad cleaning rod Accessory adapter section #8-32 Patch holder Chamber cleaning brush Bore cleaning brush Double-ended utility brush Formula 3...HKP-00035$79.95 -
H&K HK MR762/417 Magazine Catch Spring
H&K Heckler & Koch
$9.95HK MR762, HK 417 Magazine Catch Spring New HK German manufacture. Factory correct magazine catch for the magazine release. Compatible With: HK MR762 HK 417 HK G28HKP-16520$9.95 -
H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger Spring
H&K Heckler & Koch
$9.95H&K UMP/G36 (.40 S&W/.45 ACP/9mm/5.56/.223) Trigger Spring Trigger Spring For All HK UMP & G36 LowersHKP-01864$9.95 -
HK G36, HK SL8, HK 416, HK MR556 Gas Piston - Black
USA
$79.95HK G36, HK SL8, HK 416, & HK MR556 Gas Piston - Black Complete assembly with 3X rings installed and nitrided black. Counts as one US-made compliant part for your SL8-G36 style conversion. This is one of the best parts to use on the conversion as it...HKP-14540$79.95 -
HK HK91, G3, SAR8 Target Solid Wood Stock Section
$44.95HK HK91, G3, SAR8 Target Solid Wood Stock Section Unknown manufacture solid wood stock section incomplete. The wood is solid and beautifully made. We are not sure where they came from or who made them this was a warehouse find and one time deal. Perfect...HKP-19512$44.95 -
HKP HK MP5 Binary SL Selectors
HKP HK Parts
$69.95HKP HK MP5 Binary SL Selectors: Our selectors were made to work specifically with the Magpul SL housing in conjunction with the popular Franklin Armory Binary trigger pack. We aimed to keep the same aesthetics as our SEF style binary selector levers but...HKP-21438$69.95 -
HKP MP5 & MP5K 9mm Ambidextrous 0,1 Trigger Pack - Match
HKP HK Parts
$579.95HKP/H&K MP5/K 9mm 2 Position 0,1 Ambidextrous Match Trigger Pack We have one of the best HK gunsmiths in the country that is able to take hand picked German HK F/A trigger packs and modify them to semi-auto. This is done with the best and most...hkp-18424$579.95 -
On Sale
HKP MP5 & MP5K 9mm Magazine Floor Plate - BLEMISHED
HKP HK Parts
Now: $5.95Was: $9.95HKP MP5 & MP5K 9mm Magazine Floor Plate - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. New US manufactured MP5, MP5K 9mm magazine floor plate...HKP-17507-BNow: $5.95Was: $9.95 -
Magpul HK G3 / HK 91 PRS Lite Stock
Magpul
$289.95Magpul HK G3 / HK 91 PRS Lite Stock New G3 / HK91 PRS Lite stock will allow you to shoot your rifle with comfort while adding some style. We take the PRS Lite stock and attach our HK - AR adapter with a refinished back plate to bring you an assembled...HKP-21170-M$289.95 -
Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston
Nefarious Arms
$64.95Nefarious Arms HK G36/SL8/HK 416/MR556 Gas Piston A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated gold for added protection and an overall great part. Compatible...HKP-21364$64.95 -
RCM HK MP5 Semi Auto Carrier
RCM
$146.95RCM HK MP5 Semi Auto Carrier New RCM manufactured MP5, 94 F/A carrier with all current "F" style upgrades and tungsten filled for the best performance and the utmost reliability. Machined completely from billet ordnance grade steel to exact HK German...HKP-20981$146.95 -
Out Of Stock
RCM HK MP5-E Full Auto Bolt Group
RCM
$459.95RCM HK MP5-E Full Auto Bolt Group Each bolt group incorporates RCM’s F style carrier, MP5-E bolt head, extractor and 100 degree locking piece. This group is 100% US made and the finest out there. Complete and ready to drop in and use. Ideal to...HKP-21351$459.95 -
RCM MP5K/SP89/SP5K 9mm RS Trunnion
RCM
$69.95MP5K Reverse Stretch Trunnion US-made to exact factory HK specifications for the HK MP5K, SP89 9mm builds. There is a difference between the MP5K and the MP5 trunnion. This offering is the correct trunnion for the MP5K and all MP5K PDW variants,...HKP-02242$69.95 -
Solar Tactical HK G3/K91 Kydex RH Grip Wrap - Black
Solar Tactical
$69.95Solar Tactical HK G3/K91 Kydex RH Grip Wrap - Black Featureless Kydex grip wrap for use with detachable magazines. Prevents a wrap around style pistol grip. Allows the use of the factory magazine release and detachable magazines over 10 rounds. Preban...HKP-18915$69.95 -
Strike Industries Link Anchor Poly Handstop
Strike Industries
$19.95Strike Industries Link Anchor Poly Handstop The LINK Anchor Handstop is made from a heat-resistant polymer that allows comfortable grip in any shooting condition. It has a low profile design that allows mounting through any MLOK or KeyMod openings. The...HKP-19645$19.95 -
Out Of Stock
B&T HK MP5/MP5K Telescopic Brace - Stock Conversion Kit
B&T Brugger & Thomet
$189.95Stock Conversion Kit - HK MP5 Telescopic Brace B&T stock conversion kit for BT-200601 & BT-200602 telescopic brace. Converts the telescopic brace into a telescopic stock. Compatible With: HK MP5 HK MP5KHKP-21384$189.95 -
Blitzkrieg PTR Spike Front Sight Gen 2 - Luminescent Green
Blitzkrieg Components
$87.95Blitzkrieg PTR Spike Front Sight Gen 2 - Luminescent Green The Blitzkrieg Gen 2 HK-style front sight brings a modernized approach to this classic sighting system. Designed with a distinctive spike-tipped post and a vibrant Tritium dot paired with a Lumi...HKP-21106$87.95 -
DTAC Picatinny Rail For HK Receivers - 15 Slot
DTAC Dakota Tactical
$74.95Dakota Tactical Picatinny Rail To Weld To The Receiver Mil-Spec all steel picatinny rail in the white, relief cut for HK receivers & made for mounting scopes and optics to HK builds. This unit easily welds to the top of your HK receiver. Compatible...HKP-17819$74.95 -
Franklin Armory HK MP5K-AR Binary Trigger Group
FA Franklin Armory
$849.95Franklin Armory HK MP5K-AR Binary Trigger Group Introducing our new MP5K-AR Navy ambidextrous lower housing, paired with a Franklin Armory Binary Trigger pack and a Magpul MOE grip for a complete MP5K-AR Binary Trigger group. This drop-in unit fits all...HKP-21337-M$849.95 -
Out Of Stock
H&K 21 (7.62x51/.308) Feed Mechanism Pawl
H&K Heckler & Koch
$69.95HK 21E & M13 Feed Mechanism PawlHKP-02071$69.95 -
H&K 53/51 (5.56/.223) Vented Handguard - Horizontal
H&K Heckler & Koch
$119.95HK German HK 53, HK 51 Vented Hand Guard - Horizontal Style This handguard is vented on all three sides to promote barrel cooling as well as provide an aggressive grip hold. Compatible With: HK 53 HK 51 V53, C93 Other HK53, HK51 clone, or other custom...HKP-01776$119.95 -
H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Push Pin
H&K Heckler & Koch
$74.95H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Push Pin This German-made Heckler & Koch housing comes in black polymer. This part is compatible with all push pin G3 style firearms. It can also be used for other...HKP-01757$74.95 -
H&K HK MP7 3-Position Retractable Stock
H&K Heckler & Koch
$299.95H&K HK MP7 3-Position Retractable Stock New German HK Rare HK MP7 - 3 Position Retractable ButtstockCompatible with all MP7A1 and MP7A2 FirearmsHKP-18283$299.95