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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On Sale
Magpul SL HK MP5K - Binary Trigger Group
FA Franklin Armory / Magpul
$711.95 - $735.95Magpul SL HK MP5K - Binary Trigger Group Perfect for those seeking a binary option combined with the comfort of a Magpul housing. We've paired a Magpul SL housing with our compatible binary selector levers and completed it with a Franklin Armory trigger...HKP-21408-M$711.95 - $735.95 -
POF HK MP5 9mm SEF (0,1,30 Pictogram) Housing - Push Pin
POF
$89.95POF HK MP5 9mm SEF (0,1,30 Pictogram) Housing - Push Pin This is a H&K contract SEF grip housing. The Housingg features the classic finger grooves. This part is not HK German quality, but a great value for the price. Specifications: Push Pin SEF...HKP-19826$89.95 -
H&K 91/93/33/53/G3 (5.56/.223) & (7.62x51/.308) Rear Stock Buffer With All Mounting Hardware
H&K Heckler & Koch
$24.95German HK G3, 91 & PTR91 Complete Rear Stock Buffer Assembly Each unit comes with all of the mounting hardware for installing the G3 buffer to your backplate assembly. Also fits the HK93, 33, and 53 fixed stocks as well (use the same buffer).HKP-00362$24.95 -
H&K MP5 & MP5K 9mm Magazine Loader
H&K Heckler & Koch
$109.95German Magazine Loader For MP5 & MP5K - 9mm Magazines New HK German manufacture. Get years of use out of this steel loader while saving your thumbs. Compatible With: Curved 40, 30, 20, 15 & 10 round 9mm magazinesHKP-17013$109.95 -
On Sale
PTR PDW (7.62x39) & (7.62x51/.308) Backplate With Recoil Rod
PTR
Now: $109.95Was: $149.95PTR PDW Backplate Assembly Complete With Recoil Rod Each unit has been built with new HK parts and painted HK black, ready for use. The PTR PDW is the collapsible recoil-style assembly designed for use on HK51-style builds such as the PTR PDW pistol or...HKP-02665Now: $109.95Was: $149.95 -
H&K 90 Series Trigger-Used
H&K Heckler & Koch
$14.95H&K 90 Series Trigger-Used German 90 series surplus trigger in used condition taken from demilled HK German G3 firearms. Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom buildsHKP-17920$14.95 -
H&K MP5 & MP5K 9mm Magazine Floor Plate
H&K Heckler & Koch
$10.95HK MP5, 94, MP5K, & SP-89 9mm Magazine Floor Plate - German HK New HK German manufacture. It will fit all HK MP5/MP5K magazines.HKP-01051$10.95 -
Trijicon, HKP HK MP5 3.25 MOA / Optic Mount Bundle - Black
Trijicon
$585.95RMR Optic Mount - Bundle - HK MP5 Includes: (1) Trijicon RMR Type 2 Red Dot Sight - 3.25 MOA Red Dot, LED Illuminated (1) MP5 RMR Optic Mount The finest mounting solution to properly mount your RDS on your MP5 or any other receiver that utilizes...HKP-20732$585.95 -
H&K 91/G3 (7.62x51/.308) Complete F/A Lower (SEF) - Black
H&K Heckler & Koch
$369.95German G3 Surplus Lower Complete - Black Grip HK G3 SEF Steel Lower Complete. Each lower includes full auto trigger pack complete, selector lever, green grip, metal SEF grip frame, grip screw with screw washer. All of these parts are installed and ready...HKP-17653$369.95 -
H&K Ambidextrous Sling Pin O-Ring
H&K Heckler & Koch
$1.95H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...HKP-01090$1.95 -
H&K HK MR556/MR762/416/417 German E1 Convex Butt Pad
H&K Heckler & Koch
$64.95HK MR556, HK416 & MR762, HK417 German E1 Convex Butt Pad The HK Convex buttpad can be used to swap out on the factory E2 or concave-style buttpads for those who desire this option. This way, you can use the concave or convex-style buttpads...HKP-01915$64.95 -
HKP HK MR556/416 A5 Style Trigger Guard
HKP HK Parts
$39.95HKP 416 & HK MR556 HK416A5 Style Trigger Guard Now you can upgrade your MR556, 416 & CR556 to the latest Gen HK 416 A5 Enhanced Trigger Guard. Fully assembled and ready to drop in. With a larger trigger guard area you can now use gloves...HKP-17793-M$39.95 -
Magpul M-LOK Rail Section - 3 Slots
Magpul
$10.95Magpul M-LOK Rail Section - 3 Slots Designed for use with all M-LOK compatible hand guards and forends, M-LOK aluminum rail sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc...HKP-20661$10.95 -
Tommy Built HK MP7 Style Flip Grip
Tommy Built
$99.95Tommy Built HK MP7 Style Flip Grip M-LOK vertical flip grip. Universal fit for anything with M-LOK. This is the vertical flip grip style used on the MP7 and now you can adapt it to any M-LOK handguard. A nice sleek vertical grip that can be deployed and...HKP-21063$99.95 -
H&K UMP/USC (.40 S&W/.45 ACP/9mm) Side or Bottom Rail
H&K Heckler & Koch
$67.95HK Factory German USC/UMP Side Or Bottom Rail W/ Screws Up to three sides can be used - two for the sides and one for the bottom. Best quality and price available anywhere. Made from hard coat anodized aluminum. Please Note: White lettering on rails may...HKP-00597$67.95 -
Out Of Stock
HKP HK 91/G3 & PTR Bench Mat
HKP HK Parts
$24.95HK G3, HK91 & PTR 7.62 Bench, Gunsmithing Repair Mat Our HK G3 bench mat is the perfect cleaning & repair mat designed specifically for your HK G3 models. Have fun and learn while you work on your favorite H&K firearm. The soft top protects...HKP-17283$24.95 -
On Sale
HKP/H&K UMP/USC (.40 S&W/.45 ACP/9mm) Enhanced Top Receiver Rail - BLEMISHED
HKP HK Parts
Now: $29.95Was: $49.95HKP/H&K UMP/USC (.40 S&W/.45 ACP/9mm) Enhanced Top Receiver Rail - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The extended length allows...HKP-14541-BNow: $29.95Was: $49.95 -
Out Of Stock
RCM HK MP5-E 9mm Bolt Head
RCM
$264.95RCM HK MP5-E 9mm Bolt Head MP5-E bolt head is a drop in upgrade for all MP5/MP5K.HKP-20954$264.95 -
AIM Sports 4x Prismatic Scope w/ Riser
AIM
$109.954X32 TRI ILLUMINATED SCOPE W/FIBER OPTIC SIGHT ARROW PLX RETICLE 4 X 32 Prismatic Scope With Illuminated Reticle. The optic is 100% shock resistant, recoil and fog proof, as well as entirely nitrogen filled. Features tri-illumination (red, blue &...HKP-19534$109.95 -
PTR HK MP5K Tactical Tri-Rail - Black
PTR
$89.95Tactical Tri-Rail - Black - MP5K Our new modular tactical forearm comes with 3 rails on the left, right and bottom. That are removable and adjustable for you own taste and mission requirements. Made from aircraft grade aluminum and steel components...HKP-16765$89.95 -
H&K 33/91/93/G3 (5.56/.223) & (7.62x51/.308) Triple Frame Front Sight Tower
H&K Heckler & Koch
$14.95HK German Front Sight Tower Triple Frame- Used Surplus Used G3 triple frame in Good shape. Just needs a good refinishing. Comes complete with sight blade and roll pin installed. Used surplus pulled from HK German demilled G3's Comaptible With: HK 91 HK...HKP-16734$14.95 -
H&K HK MP5 German 9mm Trigger Pack Complete F/A Roller Sear, XX Struted/Pinned Hammer
H&K Heckler & Koch
$499.95H&K MP5/K 9mm Full Auto Complete Trigger Pack This factory HK German MP5 9mm full auto trigger pack is offered as it was originally configured by HK Germany. It has been carefully preserved from a demilled 1980s production MP5 and comes complete with...HKP-19342$499.95 -
H&K HK MR556/416 Slim Line Stock - RAL 8K
H&K Heckler & Koch
$249.95HK 416A5, HK416 & MR556 Slim Line Retractable Stock - RAL 8000 New from HK Germany the slim line retractable stock fits all commercial & mil-spec AR-15/M16 buffer tubes. Marked with the HK logo and issued on specialized HK 416, MR556 rifles...HKP-17602$249.95 -
H&K 91/G3 (7.62x51/.308) Complete F/A Trigger Pack (SEF) - Used
H&K Heckler & Koch
$299.95H&K G3/91 (7.62x51/.308) SEF Complete F/A Trigger Pack - USED A Heckler & Koch genuine part. The best price anywhere for a complete surplus German trigger pack. This offering is a full auto HK SEF .308 trigger pack complete with all internals...HKP-00522$299.95 -
Out Of Stock
H&K HK 30 Round MP5/SP5 & MP5K/SP5K 9mm Magazine - Red
H&K Heckler & Koch
$99.95New German - H&K MP5, SP5, SP5K, MP5K 9mm - 30 Round Curved Magazine - Red Heckler & Koch factory fresh magazine from this current year's production. 9mm 30 Round curved all-steel magazine stamped "Made In Germany". These are the finest...HKP-19971$99.95 -
H&K HK21 FMP Parts Kit, 7.62x51
H&K Heckler & Koch
$1,788.95H&K HK21 FMP Parts Kit, 7.62x51 Seize your opportunity to secure a piece of history! These HK21 parts kits were manufactured by the Portuguese government under license from HK using HK's tooling, dies, and prints. Each HK21 kit has been...HKP-21393$1,788.95 -
H&K MP5 & MP5K 9mm Magazine Locking Plate
H&K Heckler & Koch
$16.95HK MP5 & MP5K Magazine Locking Plate - German New steel HK German manufactured MP5, MP5K curved magazine locking plate for the magazine. Compatible With: 40-round magazine 9mm 30-round magazine 9mm 20-round magazine 9mm 15-round magazine...HKP-01490$16.95 -
HK G36K/G36C Tri Rail Set Complete - Black
UTG
$64.95HK G36C, G36K, & G36 .22LR Bottom & Side Rail Set Universal Picatinny mounting rail system, mounting screws, and hex wrench. This system includes the bottom, left, and right side tactical rails (3 rails total). This set of rails will fit all HK...HKP-00272$64.95 -
H&K HK 416 Full Auto Ambidextrous 3-Position Selector Lever Kit
H&K Heckler & Koch
$139.95HK416 Full Auto Ambi Selectors Kit - German HK Each set comes complete with everything you will need to upgrade your HK 416 to an ambi selector lever set up. Factory correct German HK and all steel construction. Includes: 2 X selector levers 2 X roll...HKP-17552$139.95 -
Out Of Stock
B&T Ambidextrous Sling Pin - Small
B&T Brugger & Thomet
$58.95B&T Ambidextrous Sling Pin - Small Replaces the small push pin to allow a sling attachment point on either the left or right side of the firearm. Each measures: 6x29mm with rubber o-ring and net screw.HKP-16886$58.95 -
HKP (9mm & 5.56/.223) Thread Protector For Barrels - Threaded 1/2x28
HKP HK Parts
$14.95HKP (9mm & 5.56/.223) Thread Protector For Barrels - Threaded 1/2x28 A must-have accessory to safeguard the threads on your threaded barrel, this thread protector is the finest available. It is the standard thread protector included with all HKPARTS...HKP-02646$14.95 -
HKP HK G36/SL8 Family Armorer's Manual
HKP HK Parts
$19.95HK G36 & HK SL8 Family Armorer's Manualf This manual is the most comprehensive manual available for the G36 & SL8 family of firearms. The manual covers the G36 & SL8 family in-depth to include all aspects of history, origin, makeup,...HKP-00627$19.95 -
HKP SEF Short Axle Selector Lever For Metal Trigger Housings - Extended
HKP HK Parts
$69.95HKP SEF Short Axle Selector Lever For Metal Trigger Housings - Extended HK steel SEF Extended selector lever. Fits all metal HK grip frames. Please note that the polymer (plastic) style SEF housing uses the long axle SEF selector lever and not this...HKP-19026$69.95 -
Choate HK 91/G3 (7.62x51/.308) Complete Tactical Folding Stock
Choate
$179.95HK91, G3, & PTR Folding Stock With Adjustable Length Of Pull - Tactical Stock This stock is adjustable by two inches when using the innovative spacer system. It comes fully assembled and ready to drop on your favorite HK. The adjustable length system...HKP-01951$179.95 -
On Sale
H&K 91/G3 (7.62x51/.308) Complete Trigger Pack - Semi Auto - BLEMISHED
H&K Heckler & Koch
Now: $199.95Was: $348.95HK German SEMI .308 Trigger Pack Complete THIS IS A BLEMISHED ITEM THAT IS COSMETIC ONLY. THIS ITEM IS SOLD AS IS AND NOT ELIGIBLE FOR A RETURN. HK German manufactured trigger pack complete with all the parts being professionally converted from a factory...HKP-00217-BNow: $199.95Was: $348.95 -
Zenith 30 Round HK MP5 Monkey Subsonic Labeled Magazine
Zenith
$43.95Zenith 30 Round HK MP5 Monkey Subsonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Features: Durable electro-plated black finish for exceptional corrosion resistance All steel...HKP-20916$43.95 -
H&K 91/G3 (7.62x51/.308) Rear Sight Assembly - Used-Excellent
H&K Heckler & Koch
$18.95HK German G3, 91, PTR Rear Sight Assembly - Used Excellent Condition HK German factory sight with rear sigh detent and detent spring installed. These sights are the finest hand-picked, sorted sights available at a fraction of the cost of a new $85 set...HKP-02229$18.95 -
H&K Roller Sear For SEF, Navy Trigger Packs
H&K Heckler & Koch
$29.95H&K Roller Sear For SEF & Navy Trigger Packs It is the newer style, not the older friction type of sear. This item is also referred to as the catch with a roller but is more commonly called a sear.HKP-01710$29.95 -
H&K UMP/USC (.45 ACP) Magazine Loader
H&K Heckler & Koch
$49.95HK German Factory USC & UMP .45 Magazine Loader Fits all HK German UMP .45 25-round magazines as well as the USC 10-round factory magazines. A great addition for your range time and to avoid those sore thumbs. Compatible With: German HK UMP .45...HKP-00606$49.95 -
Handguard Rail System Screw - HK416
H&K Heckler & Koch
$25.95HK416 Factory Handguard Rail System Screw This part has the "X" marked version where the bolt head and/or the HK sling hook tool can be utilized to tighten and release the screw pressure. This part is also compatible with the...HKP-02680$25.95