HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK 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, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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HK417, MR762 Takedown Pin - Front - A4 Style
H&K Heckler & Koch
$43.99H&K MR762 A4 Receiver Front Takedown Pin German-made factory pivot pin for the MR762 A4. Will work with A1 models as well. Compatible With: HK MR762 A1 and A4 HK417HKP-21958$43.99 -
Holosun 510 Series Open Reflex Sight - Picatinny Mount
Holosun
$354.95Holosun 510 Series Open Reflex Sight - Universal Picatinny Mount The HS510C is a versatile open reflex optic designed for long gun applications. HS510C is at home on carbines, PCCs, and shotguns due its durable design. HS510C features and aluminum...HKP-21656-M$354.95 -
On Sale
HK21 Drum Hanger and100rd Drum
HKP HK Parts
Now: $389.95Was: $435.95HKP HK21 Drum Hanger with H&K 100 Round Drum Complete your HK21 or FMP21 build with our HKP drum hanger and H&K original 100-round drum. Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50 Rockwell, and...HKP-21633Now: $389.95Was: $435.95 -
HK416, MR556 Battlesight Set - Folding - 45 degree Offset
Troy Industries
$265.95HK 416 / MR556 - 45⁰ OFFSET BATTLESIGHT SET – HK FRONT & ROUND REAR Durability and dead-on accuracy have made Troy Industries Folding BattleSights the choice of Special Ops and tactical users worldwide. The TROY 45 Degree Folding...HKP-21289-M$265.95 -
HK G36C Folding Stock
HKP HK Parts
$119.95HKP HK G36C Folding Stock HK G36C 9.5" rear stock assembly. One full inch shorter than the standard G36 and G36K stock. This is the preferred stock for average height shooters. Compatible With: G36, G36K, G36C, G36E SL8 to G36 builds In-spec clones and...HKP-19299-M$119.95 -
HK243, G36, SL8 Handguard
H&K Heckler & Koch
$249.95HK German Sl8, G36 & HK243 Aluminum Handguard - IDZ New latest production HK G36, SL8 & HK243 forearm. This handguard offering is made entirely out of aluminum. This is the most robust forearm HK makes or that is available. This was designed for...HKP-17708$249.95 -
HK416 OTB E1 Buttstock and Buffer Tube Set
H&K Heckler & Koch
$469.95H&K MIL-SPEC 416 OTB Buffer Tube & HK E1 Stock Combo Genuine HK416 E1 Stock with the new style marine environment "over the beach" buffer tube. Buffer tube has ball bearing rollers to tighten the stock when locked in position, and helps smooth...HKP-20104$469.95 -
HK417, MR762, G28 Firing Pin
H&K Heckler & Koch
$64.95H&K HK MR762/417/G28 Firing Pin This firing pin is a must have wear and tear replacement item for your MR762 or HK 417 Firearm. Compatible With: MR762 HK 417 G28HKP-16613$64.95 -
HK416, MR556 Ejector For Bolt Head
H&K Heckler & Koch
$23.95H&K HK MR556/416 Ejector For Bolt Head HK German factory part. Compatible With: HK MR556 HK 416HKP-00037$23.95 -
HK G36, G36K Gas Block
H&K Heckler & Koch
$99.95HK G36E, G36K - Gas Block - German HK The real deal. HK German G36E, G36K Factory Gas Block. New uninstalled. Compatible With: SL8 Other G36 variants and custom builds and projectsHKP-16351$99.95 -
HK G36, SL8, HK417, MR762 Bolt Head Ejector
H&K Heckler & Koch
$19.95H&K HK G36/SL8/MR762/417 Bolt Head Ejector Compatible With: HK MR762 HK 417 HK G36 HK SL8HKP-01868$19.95 -
HK MP5 Locking Roller +2 - .40 S&W
HKP HK Parts
$11.95HK US MP5 .40 S&W Locking Roller, +2 The proper roller size is essential for proper headspacing of bolt gap. +2 / 8.02mm Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the...HKP-17564$11.95