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 G36, SL8 Firing Pin Retaining Pin, Complete
H&K Heckler & Koch
$11.95Retaining Pin For Firing Pin Complete With O-Ring Compatible With: HK G36 HK SL8HKP-14050$11.95 -
HK UMP, USC Bolt Catch Pin
H&K Heckler & Koch
$5.95H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch PinHKP-16517$5.95 -
HK UMP, USC Rear Sight, Complete
H&K Heckler & Koch
$45.95HK Heckler and Koch Complete Rear Sight for USC and UMP Includes: Leaf spring Rear sight Compression spring for rear sight Windage adjustment screw Rear sight support Compatible With: USC UMPHKP-16634$45.95 -
Out Of Stock
HK33, HK53, HK93 Magazine Clamp
H&K Heckler & Koch
$107.95HK 93, HK 33 & HK 53 Magazine Clamp German HK dual mag clamp for all HK 93/33/53 magazines. Holds two magazines together for easy access and ease of use. Compatible With: HK93 HK33 HK53 Clones and other custom buildsHKP-00485$107.95 -
On Sale
HK MP5 SP5K, SP89, G3, HK91, HK33, HK53, HK93 Rail Riser - Picatinny
MFI
Now: $29.95Was: $44.95MFI Picatinny Rail Riser For Scope MFI Picatinny rail riser to elevate your optic by 18.8mm (.740"). This see-through riser allows a full view through the factory iron sights. This unit is similar to the A.R.M.S. #5 base scope mount and STANAG to...HKP-00899Now: $29.95Was: $44.95 -
Out Of Stock
HK MP5, MP5K 3-Lug Blank Firing Adapter
H&K Heckler & Koch
$169.95H&K MP5/MP5K 3-Lug Blank Firing Adapter This part attaches to the end of the 3-lug barrel tip and will allow the use of 9mm blanks for training. A brand new HK German manufactured part. Specifications: 3-Lug Blank Firing Adapter Compatible...HKP-01990$169.95 -
HK SP5K Bolt Group - Suppressed - Full Auto - Spec
RCM
$409.95RCM HK SP5K Spec Suppressed Bolt Group- Full Auto The RCM SP5K Suppressed bolt group is expertly engineered for operating in full auto while suppressed. Although designed as a full-auto bolt group, it also functions perfectly in semi-auto receivers. This...HKP-22323$409.95 -
On Sale
HK MP5, HK90 Series Trigger Spring - SEF, Navy
MKE
Now: $2.45Was: $8.95MKE SEF & Navy 3 Position Trigger Spring The MKE trigger spring is an essential upgrade for anyone dealing with worn or broken trigger return springs in surplus trigger packs or as spares for all 90 series owners. These springs are fully compatible...HKP-22225Now: $2.45Was: $8.95 -
HK21 Ammunition Belt with Starter Tab - DM1 - 50 Round
H&K Heckler & Koch
$39.95H&K HK21 DM1 50 Round Belt with Starter Tab - 7.62x51/.308 Custom 50 round belt for HK21 and MG3 belt-fed rifles. Compatible With: HK21HKP-22098$39.95 -
HK MP5, AP5 Trigger Group - Semi Auto - 4 Position Pictogram 013F
MKE
$439.95MKE HK MP5/AP5 4 Position Pictogram (0,1,3,F) Semi-Auto Trigger Group This 0,1 semi-auto trigger group features the 4 position pictogram 0,1,3,F. Designed with a push pin set up, it serves as a perfect upgrade for the HK MP5 or the Century Arms AP5...HKP-21817$439.95 -
Out Of Stock
HK416, MR556 10.5" Super Modular Rail System
Geissele
$472.00Geissele HK416, MR556 10.5" Modular Rail 9.7 " Extended free float rail for use with all HK 416 & MR 556 barrels. Please note: On the HK416 models the sling attachment point on the gas block will need to be removed to allow the handguard to slide on...HKP-16459$472.00 -
HK416, MR556 Ejector Retaining Pin
H&K Heckler & Koch
$6.95H&K Heckler and Koch's Ejector Retaining Pin for your HK416 and HK MR556 This factory HK German part is the pin that holds the ejector in place on the bolt head. Great to have as a spare part. Compatible With: HK416, MR556HKP-00053$6.95