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
HK33, HK53, HK93, HK91, G3 Bolt Locking Lever Spring For Bolt Head
H&K Heckler & Koch
Now: $4.46Was: $4.95HK Bolt Carrier Bolt Locking Lever Spring New HK German factory bolt carrier locking lever spring for locking lever latch. Compatible With: HK G3, HK91 PTR models HK93, 33, 53 Other clones and custom buildsNow: $4.46Was: $4.95 -
On Sale
HK VP9 Return Spring for Ultra Match Trigger
HKP HK Parts
Now: $7.96Was: $9.95HKP HK VP9 Ultra Match Trigger Return Spring Ultra Match trigger return spring will give your VP9 and VP40 an even smoother, crisper, and lighter pull. This helps promote consistent match-grade accuracy and control by dropping the trigger pull...Now: $7.96Was: $9.95 -
On Sale
HK P7 Series Extractor Spring
H&K Heckler & Koch
Now: $7.16Was: $7.95HK P7 Extractor Spring This is a common wear and replacement part, according to HK Germany. This is a great part to have on hand as a spare. Compatible With: P7 PSP P7 M8 P7 M10 P7 M13Now: $7.16Was: $7.95 -
On Sale
HK45, HK45C, USP Roll Pin - Ambi Control Lever
H&K Heckler & Koch
Now: $2.66Was: $2.95HK USP, 45 & 45C Ambidextrous Control Lever Set Roll Pin This item is to hold the right side lever onto the left side axle lever. These can easily be lost or damaged. A great spare part to have on hand. Compatible With: HK USP Full...Now: $2.66Was: $2.95 -
On Sale
HK USP Firing Pin - New Style
H&K Heckler & Koch
Now: $71.95Was: $79.95HK USP New Style Firing Pin A must-have spare and replacement part for your HK pistol, as the firing pin is one of the most important spare parts to have on hand. Brand new HK German manufactured. Compatible with: HK USP 9mm HK USP 40 Cal HK USP .45 All...Now: $71.95Was: $79.95 -
On Sale
HK G3 Buffer Screw Crush Washer
H&K Heckler & Koch
Now: $0.85Was: $0.95HK G3 Crush Washer For Buffer ScrewNow: $0.85Was: $0.95 -
On Sale
HK45, HK45 Compact, P2000, P2000SK Slim Slide Release Lever Set
H&K Heckler & Koch
Now: $80.95Was: $89.95HK P2000, P2000SK, 45 & 45C Slim Slide Release Lever Set This set provides a lower profile slide release for those who conceal carry or ride the slide and prefer a lower profile slide release. Factory Standard Slide Release Lever: Left...Now: $80.95Was: $89.95 -
Out Of StockOn Sale
HK416, MR556, HK417, MR762 Buffer Retainer Spring
USA
Now: $5.36Was: $5.95HK MR556/MR762/416/HK417 Buffer Retainer Spring This item is the spring for the buffer retainer that is held in the rear of the lower receiver. Compatible With: HK MR556 HK 416 HK MR762 HK 417Now: $5.36Was: $5.95 -
Out Of StockOn Sale
HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style
H&K Heckler & Koch
Now: $23.36Was: $25.95HK416, MR556, HK417, MR762 - Handguard Locking Screw Replacement handguard locking screw that secures the handguard to the upper receiver. This version features the "X" allowing the bolt head or HK sling hood tool to be used for installation or removal...Now: $23.36Was: $25.95 -
On Sale
HK33, HK53, HK93 Firing Pin Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95New HK German 93, 33, & 53 .223/5.56 Firing Pin Spring. A must-have spare part as this is a high wear and replacement item. Compatible With: HK93, 33, 53 V93/V53, C93, C53 Custom builds and clonesNow: $8.96Was: $9.95 -
On Sale
HK SP5K Mag Release Upgrade Kit - 9mm - Drop In Paddle
HKP HK Parts
Now: $59.96Was: $74.95HK SP5K Anti-Rattle Roller Tipped "Paddle" Magazine Release Install Kit No modifications, no refinishing...complete drop-in kit included. New USA made busing for a drop-in install kit for the HK SP5K. This kit will allow any end-user to quickly,...Now: $59.96Was: $74.95 -
On Sale
HK416, MR556, MR762, G36 Extractor Spring
H&K Heckler & Koch
Now: $8.05Was: $8.95H&K MR556/MR762/416/G36 (5.56/.223) & (7.62x51/.308) Extractor Spring A must-have replacement wear part and a great item to have on hand. Compatible With: HK G36 HK G36K HK G36C HK SL8 HK MR556 HK 416 HK MR762Now: $8.05Was: $8.95