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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On Sale
HK USP Series Firing Pin Block Spring - Old Style
H&K Heckler & Koch
Now: $8.96Was: $9.95HK USP Series Old Style Firing Pin Block Spring In order to use the new firing pin block spring, you also have to upgrade the firing pin, firing pin block, as well as the firing pin block spring. HK part #214192 has been replaced with...Now: $8.96Was: $9.95 -
On Sale
HK416, MR556 Firing Pin
H&K Heckler & Koch
Now: $49.46Was: $54.95H&K HK MR556/416 Firing Pin New HK German manufactured. This is a great item to have on hand as the firing pin is one of the most abused components in the HK MR556 and HK 416 weapon systems. Compatible With: HK MR556 HK 416 HK CR556 HK...Now: $49.46Was: $54.95 -
On Sale
HK VP9, VP9SK, VP40 Trigger Stop Bolt
H&K Heckler & Koch
Now: $13.46Was: $14.95H&K HK VP9/VP9SK, VP40 Trigger Stop Bolt Stop Bolt for Trigger VP9, VP40. Compatible With: HK VP9 HK VP9SK HK VP40 HK VP9A1 F HK VP9A1 KNow: $13.46Was: $14.95 -
On Sale
HK G36, SL8, MP7 Gas Block Pin
H&K Heckler & Koch
Now: $8.05Was: $8.95H&K HK G36/SL8/MP7 Gas Block Pin The G36/SL8/MP7 gas block pin is the largest out of HK's line up (UMP/USC, 415/MR556, 417/MR762).Now: $8.05Was: $8.95 -
On Sale
HK416 Retaining Pin - Firing Pin - Enhanced
H&K Heckler & Koch
Now: $17.95Was: $19.95HK 416 Firing Pin Retaining Pin- New Style This part is the newer style pin that is goldish, super hardened, and much less prone to wear and tear. The enhanced version is the most robust, easiest-to-use pin available. Compatible With: HK 416 AR15, M4...Now: $17.95Was: $19.95 -
On Sale
HK Ambidextrous Sling Pin Locking Knob
H&K Heckler & Koch
Now: $10.75Was: $11.95New HK German Ambidextrous Sling Pin Locking Knob These are common replacement items, they can become loose as the O-ring wears and falls off. Be sure to order extra O-rings to avoid losing the locking nut. This is a common replacement part for those...Now: $10.75Was: $11.95 -
On Sale
HK MP5, HK94 Grip Adapter - K Style
HKP HK Parts
Now: $39.96Was: $49.95HK Vertical K Grip Adapter For HK MP5 & HK94 (Adapter Only) This is the adapter needed to add an MP5K K grip to your HK94, MP5, or clone.Now: $39.96Was: $49.95 -
On Sale
B&T Ambidextrous Sling Pin - Small
B&T Brugger & Thomet
Now: $53.06Was: $58.95B&T Ambidextrous Sling Pin - Small Replaces the small push pin to allow a sling attachment point on either the left or right side of the firearm. Each measures: 6x29mm with rubber o-ring and net screw.Now: $53.06Was: $58.95 -
On Sale
HK P30SK Safety Pin - Firing Pin
H&K Heckler & Koch
Now: $4.46Was: $4.95H&K HK P30SK Firing Pin Safety Pin This is a factory original HK part manufactured in Germany.Now: $4.46Was: $4.95 -
On Sale
HK45, HK45 Compact, USP Compact Magazine Follower
H&K Heckler & Koch
Now: $8.96Was: $9.95HK USPC, 45, & 45C Magazine Follower A great spare to have on hand as the follower is a wear and replacement part. Do not forget to order spare magazine springs while you are at it. HK German manufacture. Compatible With: HK USPC .45 HK USPC .45...Now: $8.96Was: $9.95 -
On Sale
HK USP, USP Compact, P2000 Magazine Release Lever
H&K Heckler & Koch
Now: $11.65Was: $12.95HK Magazine Release Lever Compatible With: HK USP .45 HK USP .40 HK USP 9mm HK USP Compact 9mm HK USP Compact .357 SIG HK USP Compact .40 HK USP Compact .45 HK USP Tactical, Elite, Expert both full size & compact HK P2000 9mm & .40/.357 HK...Now: $11.65Was: $12.95 -
On Sale
HK VP9, HK VP40 Backstrap - Small - Black
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K VP9, HK VP40 Backstrap - Small - Black New HK German manufacture. Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 KNow: $26.95Was: $29.95