Small Parts
Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.
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HK USP, USP Tactical Lanyard Loop Insert - .45 ACP
H&K Heckler & Koch
$18.95HK USP/Tactical .45 ACP Lanyard Loop Insert This item does not have the lockout device installed for those who prefer not to have this device on their firearm.$18.95 -
HK USP Roll Pin for Hammer
H&K Heckler & Koch
$3.95H&K HK USP Roll Pin for Hammer Cylindrical pin used for the bobbed hammer and spurred hammer strut among other uses.$3.95 -
Out Of Stock
HK416, MR556 Ejector Spring
H&K Heckler & Koch
$39.99HK 416 & MR556 Ejector Spring Compatible With: MR556 HK 416$39.99 -
HKP HK MP5 (.40 S&W) Locking Roller -6
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, -6 The proper roller size is essential for headspacing the bolt gap correctly. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you...$11.95 -
HK33, HK53, HK93, HK91, G3 Internal Buffer With Break Springs
H&K Heckler & Koch
$17.95HK German G3, 91, PTR & HK 33, 93 Internal Buffer Brake Spring New HK German Brake Springs for the standard buffer found on the HK G3, 91, PTR & HK93, 33, 53 rear stocks. Compatible With: All standard A2 fixed stock buffers$17.95 -
HK VP9, VP9SK, VP40 Catch Cylindrical Pin
H&K Heckler & Koch
$9.95Cylindrical Pin For Catch VP9, VP40 Compatible With: HK VP9 HK VP9SK HK VP9A1 F, VP9A1 K HK VP40$9.95 -
HK P30, P2000 Hammer Strut
H&K Heckler & Koch
$24.95HK P2000 & P30 Hammer Strut Compatible With: HK P2000 HK P30$24.95 -
Out Of Stock
HK MP5 40/10 +2 Roller
H&K Heckler & Koch
$19.99MP5 40,10 +2 Roller New HK German MP5 40/10 +2 roller. Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production. Please Note: The price listed is per roller. Order 2 (pair)...$19.99 -
HK91, G3 Extractor - Enhanced Coated Polish
HKP HK Parts
$24.95HKP HK 91/G3 Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...$24.95 -
HK417, MR762 Magazine Catch
H&K Heckler & Koch
$49.95H&K HK 417/MR762 Magazine Catch This is the actual mag catch for the MR762 and HK 417 family of firearms. A great spare to have on hand. Compatible With: HK 417 HK MR762$49.95 -
HKP HK MP5 (.40 S&W) Locking Roller +6
HKP HK Parts
$11.95HK US MP540 Locking Roller, +6 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need to...$11.95 -
On Sale
HK90 Series Ejector Lever Axle for SEF, Navy, and Burst Trigger Packs
MKE
Now: $10.10Was: $17.95MKE Trigger Pack Ejector Lever Axle Fits all SEF & Ambidextrous style HK trigger packs regardless of caliber. MKE product made on HK tooling. Fits all of the following 90 series trigger packs: SEF, O,1 Navy BurstNow: $10.10Was: $17.95