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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On Sale
HK MP5 Bolt Head with Locking Piece - .40 S&W, 10mm - BLEMISHED
H&K Heckler & Koch
Now: $559.95Was: $749.95Heckler and Koch Bolt Head with Locking Piece for HK MP5 .40 S&W and 10mm - BLEMISHED ONLY 7 UNITS AVAILABLE - CONDITION MAY VARY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED...HKP-99369Now: $559.95Was: $749.95 -
On Sale
HK UMP Barrel - 9mm - Threaded 1/2x28 RH with 3 Lug - BLEMISHED
OMEGA
Now: $345.95Was: $449.95HK UMP9 Barrel - Threaded 1/2x28 - 3-Lug 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Factory-style barrel for HK UMP9 pattern...HKP-99367Now: $345.95Was: $449.95 -
On Sale
HK94 Barrel - Sight Tower - Non-Threaded - LIKE NEW
H&K Heckler & Koch
Now: $499.95Was: $599.95Heckler and Koch HK94 Barrel with Sight Tower - Non-Threaded - LIKE NEW ONLY 1 UNIT AVAILABLE Factory-style barrel designed for HK94 pattern firearms. This non-threaded barrel is suitable for replacement or build use and maintains the correct profile and...HKP-99366Now: $499.95Was: $599.95 -
On Sale
HK33 Cocking Tube with Hanger - 11" - Right Hand
HKP HK Parts
Now: $109.95Was: $149.95HKP HK33 11" Cocking Tube with Hanger - UNFINISHED ONLY 1 UNIT AVAILABLE This right-hand cocking tube with welded hanger is manufactured in the USA for HK33 pattern rifles and is made to match original HK specifications. Designed as a correct...HKP-99365Now: $109.95Was: $149.95 -
HK P7 M8, P7 M13 Maintenance Manual - RARE
H&K Heckler & Koch
$489.95Heckler and Koch Maintenance and Repair Manual for HK P7 M8, P7 M13 Pistols - RARE Original Heckler and Koch maintenance manual covering the P7 M8 and P7 M13 pistols. This factory-issued manual provides detailed technical guidance on maintenance and...HKP-99362$489.95 -
HK MP5, MP5K Cleaning Brush Rod - 9mm
H&K Heckler & Koch
$294.95HK MP5 Cleaning Brush Rod Factory cleaning rod designed specifically for 9mm MP5 platforms. An essential tool for ensuring optimal function and accuracy. Compatible With: HK MP5, SP5 HK MP5K, SP5K Clones and custom buildsHKP-22494$294.95 -
On Sale
HK USP Compact Lockout Device - Complete
H&K Heckler & Koch
Now: $19.95Was: $24.95HK USP Compact Lockout Device - Complete Easily installs to lock out the magazine. Used to comply with certain state laws and as an added safety feature. This lockout device can be retrofitted to older-style USPC's that do not have the lockout device...HKP-99360Now: $19.95Was: $24.95 -
On Sale
HK33, HK93 Factory Barrel - USED
H&K Heckler & Koch
Now: $579.95Was: $779.95HK33, HK93 Factory Barrel - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Used factory German HK HK33 NIW barrel. Factory-installed sight tower with sight/sling eyelets and factory finish. This...HKP-19350-USEDNow: $579.95Was: $779.95 -
On Sale
HK MP5 Optic Mount - Aimpoint ACRO P-1 - .22 LR
HKP HK Parts
Now: $67.95Was: $98.95HKP - HK MP5 .22LR Optic Mount - ACRO Low-profile mount with a direct Aimpoint ACRO mounting interface. The smallest mount in the market with a sleek and clean overall look. Full co-witness, this mount is the best in the market with the best 3-piece...HKP-99353Now: $67.95Was: $98.95 -
On Sale
Glock 9mm +3 Magazine Extension - Black - BLEMISHED
Tactical Precision MFG
Now: $15.95Was: $39.95Glock 9mm +3 Magazine Extension - Black - BLEMISHED INSTALLATION MARKS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This extension is made from machined 6061...HKP-21136-BL-BNow: $15.95Was: $39.95 -
HK MP5KSD Barrel - 9mm - 4.89″- Threaded 18x1
RCM
$174.95HK MP5KSD Barrel - 9mm - 4.89″- Threaded 18x1 The RCM HK Style MP5 SD-K Barrel measures 4.890 inches in length and is constructed from 41v50 cold hammer-forged steel. It features a salt bath nitride finish throughout. This barrel is designed based...HKP-22493$174.95 -
On Sale
HK VP9, P30 UMH3 Holster - Belt Loop - RH - BLEMISHED
UM Tactical
Now: $41.95Was: $65.00HK VP9, P30 UMH3 Holster - Belt Loop - RH - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Right-handed, belt-loop holster for pistols equipped with...HKP-17019-BNow: $41.95Was: $65.00