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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HK91, PTR-91 Bolt Head Complete
PTR
$179.95HKP PTR HK91 / PTR-91 Bolt Head Complete New PTR bolt head complete with extractor, extractor spring, roller retainer plate, pair of 8mm rollers. Ready to drop in to replace your worn out bolt head. Bolt head counts as 1 US made compliance part for the...HKP-20140$179.95 -
On Sale
HK33, HK53, HK93, MP5 Stock or Brace Adapter - AR Style - QD Sling Attachment Point - Red
HKP HK Parts
Now: $49.95Was: $124.99HKP HK MP5, 93/53/33 AR Brace/Stock Adapter w/ QD Sling Attachment Point - Red Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum with QD Sling Attachment Points. Properly buffered with factory...HKP-19786Now: $49.95Was: $124.99 -
HK33, HK53, HK93 HK-C1 BFSIII Trigger Group - SEF Navy Style
H&K Hechler & Koch / FA Franklin Armory
$879.95Franklin Armory BFSIII HK-C1 - Trigger Group - SEF Navy Style - HK93, HK33 3 Position HK Binary Trigger Group Binary triggers count as 4 922r compliant components. The components that count towards 922r compliance include the trigger pack box, trigger,...HKP-19647$879.95 -
HK MR762 Firing Pin
HKP HK Parts
$29.95H&K HK MR762 Firing Pin US made steel firing pin for MR762 platforms. Compatible With: HK MR762HKP-17795$29.95 -
HK416 .22 Folding Front Sight
Walther / Umarex
$59.95Umarex HK 416D .22 Folding Front Sight This is a drop in part that does not require any gunsmithing or special applications on the HK 416D .22 rifle or pistol. Each unit comes complete with the mounting hardware to the front mounting point. Please...HKP-02681$59.95 -
Out Of Stock
HK416, MR556, MR762 Buttstock Locking Bolt
H&K Heckler & Koch
$0.00H&K HK MR556/MR762/416 Buttstock Locking Bolt Compatible With: HK MR556 HK 416 HK MR762HKP-16845$0.00 -
HK416 A5 Stripped Upper Receiver - RAL8000
H&K Heckler & Koch
$1,559.95HK German Un-Assembled - Stripped HK416 A5 Upper Receiver - RAL 8K Brand new factory German RAL 8000 HK416A5 upper receiver. Compatible With: HK416 HK MR556 HK MR223 Looking for a matching lower for your build? STS416 A5 LOWER - Specialized...HKP-18787$1,559.95 -
On Sale
HK416 Commercial OTB Buffer Tube HK E1 Stock Combo
H&K Heckler & Koch
Now: $392.95Was: $469.95HK 416 OTB E1 Stock & Buffer Tube Combo - Commercial Genuine HK 416 E1 commercial 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...HKP-18361Now: $392.95Was: $469.95 -
HK G36 Screw for Guide Rod Set
H&K Heckler & Koch
$9.95HK G36 Guide Rod Set Screw Replacement guide rod set screw for HK G36 platforms. Designed to secure the guide rod assembly within the bolt carrier group during proper installation and maintenance. Compatible With: G36HKP-01873$9.95 -
HK G36, SL8 Bolt Hold Open Catch
H&K Heckler & Koch
$59.95H&K G36/SL8 (5.56/.223) Bolt Hold Open Catch New HK German manufacture. Compatible With: SL8-1 SL8-6HKP-16378$59.95 -
Out Of Stock
HK21E, HK23E, MSG90 Optic Mount - Picatinny Rail
Michaels Machines
$687.95HK21E/23E Or MSG90 Quick Release Full Picatinny Rail Scope Mount Rock-solid scope made in the USA to factory HK specs. Available exclusively at HK Parts. Please Note: These units are shipped in bulk and will have handling marks on the rails. Units are...HKP-01923$687.95 -
Out Of Stock
HK91, G3 Handguard - Slimline Style - Used Excellent Condition
H&K Heckler & Koch
$0.00Used Authentic German Military Surplus G3 Black Slim Line Forearm With Heat Shield Used in excellent shape. For the money, these are a nice addition to the collection. Each item will fit all full forearm length HK 91, G3, PTR style firearms. Used...HKP-18317$0.00