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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HK MP5K, SP89 End Cap with Buffer - 9mm - Steel
Choate
$45.95MP5K & SP-89 Steel End Cap With Replaceable Rubber Buffer Fits perfectly on all HK MP5K-type builds or projects. All metal construction, so you know it will last. Each unit comes with a sling loop for use with multiple sling types. Compatible...HKP-00395$45.95 -
HK MP5, HK90 Series Re-Timed Hammer - SEF, Navy
Michaels Machines
$168.95MM Registered Sear Pack - Re-Timed Hammer - USA This part is the necessary addition for all registered sear conversions in 9mm, 40/10, 223, and.308 trigger packs. Protect your valuable investment by using the proper re-timed hammer for your sear pack...HKP-00153$168.95 -
Ergo Sling Loop Rail Mount- Ambidextrous
Ergo
$29.95Ergo Sling Loop Rail Mount- Ambidextrous The ergonomic HK slide mount sling hook base provides an economical means for attaching an HK-style sling hook to all 1913 Picatinny rails. Perfect for mounting on a tactical rail system or other Picatinny forearm...HKP-14526$29.95 -
On Sale
HK21 FMP Complete Build Kit- Non Matching Numbers
FMP HK CONTRACT
Now: $2,987.95Was: $3,124.97HK21 Complete Build Kit- Non Matching Numbers HK Parts brings you another exhaustive parts kit. Our HK21 parts kit includes everything you need to resurrect an iconic classic and hit the range for belt-fed action. We also included our own hanger with a...HKP-21626Now: $2,987.95Was: $3,124.97 -
Out Of Stock
HK SP5 Trigger Housing - Navy 4 Position 0,1,3,F Pictogram - 9mm - Clipped and Pinned
H&K Heckler & Koch
$425.95H&K Heckler and Koch SP5 9mm 4 Position 0,1,3,F Pictogram Navy Style Trigger Housing - Clipped and Pinned The navy style trigger housing is the perfect addition to your HK SP5 9mm firearm. Designed for easy drop in installation, this housing...HKP-19231$425.95 -
HK G36, SL8 Extractor Axle - USA
$6.95HK G36, SL8 Extractor Axle- US Made New extractor axle for use on all G36, SL8 bolt heads. This part can become heavily worn and is prone to breakage. Compatible With: HK G36 models HK SL8 modelsHKP-18370$6.95 -
HK G36, SL8 Bolt Catch
H&K Heckler & Koch
$24.95HK G36 & SL8 Bolt Catch On AR-15 systems this part would be similar to a cam pin. Compatible With: G36 G36K G36C SL8 variantsHKP-02472$24.95 -
HK UMP, USC, G36 Handstop Complete
H&K Heckler & Koch
$68.95HK German Hand Stop Unit Complete This unit is compatible with any of the USC/UMP or the G36K or G36C handguards.HKP-00596$68.95 -
HK Bungee Single Point Sling - 1325mm Long
H&K Heckler & Koch
$114.95H&K Bungee Single Point Sling - 1325mm 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-18728$114.95 -
Picatinny Rail for HK Receivers - 13 Slot
DTAC Dakota Tactical
$74.95DTAC Picatinny Rail For HK Receivers - 13 Slot 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 With: HK...HKP-17818$74.95 -
HK416, MR556 Back Plate - QD Attachment
H&K Heckler & Koch
$64.95H&K HK MR556/416 Back Plate w/QD Attachment Factory HK back plate with QD socket for the HK MR556 and 416 A1/A4 models. Compatible With: HK MR556/HK 416 (A1 and A4)HKP-22205$64.95 -
HK91, G3 Locking Piece - 45 Degree - USED
H&K Heckler & Koch
$14.95Heckler and Koch German Locking Piece for HK G3 and HK91- USED This is the factory correct 45 degree locking piece for HK91 and G3 firearms. Used pulled from de-milled firearms and will range in condition but perfectly usable.HKP-16712$14.95