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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On Sale
HK SP5 End Cap with Buffer - QD
HKP HK Parts
Now: $44.96Was: $99.95HKP HK Parts Quick Detach End Cap for HK SP5 With this SP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip top condition for...HKP-20757Now: $44.96Was: $99.95 -
Out Of Stock
HK UMP .45 Semi-Auto Bolt Group - Complete
Michaels Machines
$749.95Michaels Machines HK UMP .45 Semi-Auto Bolt Group - Complete MM’s UMP Tungsten filled UMP .45 bolt carrier complete. Heat treated, parkarized and polished for the best look and function possible, as...HKP-20627$749.95 -
HK UMP .40 Semi-Auto Bolt Group - Complete
Michaels Machines
$649.95Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete MM’s UMP tungsten filled UMP .40 bolt carrier. Heat treated, parkarized and polished for the best look and function possible, as an added...HKP-20626$649.95 -
HK UMP .45 Conversion Kit
$1,099.95H&K HK UMP .45 Conversion Kit This kit optimizes the UMP platform by allowing the user swap between calibers in approximately 5 minutes. The Michael's machine semi-auto bolt pairs perfectly with the...HKP-20623$1,099.95 -
HK Single Point Leather Sling - Brown
HKP HK Parts
$49.95Single Point Leather Sling - Brown Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering...HKP-20161$49.95 -
HK MP5 Binary Trigger Group - Ambi 3 Position Universal Housing - .40 S&W, 10mm
H&K Hechler & Koch / FA Franklin Armory
$1,399.95Franklin Armory BFSIII HK-C1 - Trigger Group for MP5 .40, 10mm- Universal Housing Our universal binary trigger group will come set up as a MP5 40/10, but with our Navy 3 position universal housing...HKP-20085$1,399.95 -
Picatinny Optic Mount - Aimpoint T1 - Absolute Co-Witness
Aimpoint
$14.95Aimpoint - T1 Mount Absolute Co-Witness Features a machined recoil lug for consistent, repeatable mounting. Features: 6061 T6 aluminumHKP-19334$14.95 -
On Sale
HK MR556 Rail System - 10" - M-LOK
KDG Kinetic Development Group
Now: $209.96Was: $374.95KDG HK MR556 10" M-LOK Rail System Direct-mount rail system designed to replace the factory HK MR556 handguard. Features a continuous monolithic Picatinny rail at the 12 o’clock position and M-LOK...HKP-19246Now: $209.96Was: $374.95 -
HK G36, SL8 Handguard - Side, Bottom Mounting
H&K Heckler & Koch
$279.95HK German G36 & HK SL8 Forearm With Rail Mounting Points Newer style that has the hard mounting points for the side and bottom rails. HK Black In Color. Compatible with all HK SL8's & G36E's models.HKP-01420$279.95 -
B&T TP9, MP9 Folding Stock Locking Bar
B&T Brugger & Thomet
$19.95B&T TP9 and MP9 Locking Bar Folding Stock Locking Bar for Swiss B&T manufactured Tactical Folding Stock for the TP9 and MP9. Compatible With: B&T TP9HKP-17302$19.95 -
On Sale
HK416, MR556 M-LOK Handguard with Overgrip - 11"
B&T Brugger & Thomet
Now: $187.46Was: $365.00B&T M-LOK Handguard OG for HK416/MR556 (11") with "Overgrip" Free-cut Top Rail B&T's one-piece 11-inch M-LOK handguard for the Heckler & Koch HK416 and civilian equivalent MR556 is an amazing...HKP-20403Now: $187.46Was: $365.00 -
HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included - FDE
SB Tactical
$294.95SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter - FDE MP5K, SBA4 5-position adjustable brace features an integral ambidextrous QD sling socket for a quick install and removal sling...HKP-20353$294.95