Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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HK USPC, HK45C, P2000, P2000SK Trigger
H&K Heckler & Koch
$29.95Heckler and Koch Trigger for HK USP Compact, HK45 Compact, HK P2000, and HK P2000SK New HK manufactured. Compatible With: HK45 Compact HK45 Compact Tactical USP Compact USP Compact Tactical P2000 P2000SKHKP-02603$29.95 -
Out Of Stock
HK45, USP, P2000 Sear Axle
H&K Heckler & Koch
$13.95Sear Axle Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45 ACP HK USP Compact LEM HK45 HK45 Compact HK P2000 9mm HK P2000 .40 S&W HK P2000 .357...HKP-01251$13.95 -
Out Of Stock
HK USP Hammer Spring
H&K Heckler & Koch
$7.95H&K HK USP Hammer Rebound Spring For use on DAO only NOT LEM hammers for the following pistols. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45...HKP-16678$7.95 -
On Sale
HK P30SK Holster - Compensator
Odin Holsters
Now: $37.46Was: $79.95Odin Holsters HK P30SK Comp Weight™ Compensator Holster The P30SK Comp Weight™ Compensator holster is an outside the waistband that allows the HK Parts Comp Weight™ to be installed as well. For a right-hand shooter with or without out...HKP-18842-MNow: $37.46Was: $79.95 -
HK416, HK417, MR556, MR762 Pin Look Index
H&K Heckler & Koch
$6.95H&K HK 417/MR556/416/MR776 Pin Look Index Compatible With: HK MR556 HK 417 HK MR556HKP-02639$6.95 -
Out Of Stock
HK G36, SL8 Optic Mount, Carry Handle - Picatinny Rail - New Style
H&K Heckler & Koch
$274.99HK German HK SL8 & G36 Picatinny Scope With Rail/ Carry Handle This is the perfect mounting solution for optics. Made from the highest quality combat grade aluminum with a hard coat anodized black finish. Compatible With: G36 models SL8...HKP-01878$274.99 -
HK91, G3, PTR Magazine - 20 Round - Aluminum - USED - FMP
FMP HK CONTRACT
$11.95FMP Portuguese HK91, G3, PTR 20 Round Aluminum Magazine - Used Portuguese FMP 20-round aluminum magazine for HK91, G3, and PTR pattern rifles. A solid factory-style magazine option for range use, replacement needs, or adding extra mags to your setup...HKP-22713$11.95 -
B&T APC, SPC, GHM Super APC Trigger
Geissele
$378.95B&T APC, SPC, GHM Super APC Trigger Geissele limited edition trigger made specially for B&T firearms. The Super APC trigger features the same crisp, single-stage feel and quick reset of the Geissele Super 3-Gun. Trigger pull weight is also...HKP-22416$378.95 -
Picatinny Optic Mount Shield - ACRO P2, C2 - S.W.O.R.D.S
Frost Defense
$239.95Aimpoint ACRO P-2, C-2 Optic Mount - S.W.O.R.D.S - Picatinny Mount The S.W.O.R.D.S Enhanced optic shield designed for Aimpoint ACRO P2/C2 red dot sights. This patent-pending mount system provides robust glare and impact protection by surrounding the...HKP-22341-M$239.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Handguard Locking Screw - A4 Style
H&K Heckler & Koch
$22.95HK416, MR556, HK417, MR762 - A4 - Handguard Locking Screw Replacement locking screw that secures the A4 handguard to the upper receiver. Compatible With: HK HK416 A4 HK MR556 A4 HK HK417 A4 (2 required per handguard) HK MR762 A4 (2 required...HKP-22304$22.95 -
HK UMP, USC M-LOK Attachment Piece
HKP HK Parts
$29.95HKP HK UMP/USC M-LOK Attachment Piece Upgrade your UMP and USC with the HK Parts M-Lok attachment piece, designed to eliminate the hassle of snagging and shredding your knuckles on Picatinny rails. This exceptional set significantly expands the range of...HKP-22249$29.95 -
On Sale
IMI UZI Complete A.R.S Lower Grip - USED
IMI
Now: $138.95Was: $189.95IMI UZI Complete A.R.S Lower Grip - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Israel manufactured complete lower grip. Each grip in is good condition and show signs of wear. Please Note: This lower grip may or may not be marked with the A.R.S...HKP-99193Now: $138.95Was: $189.95