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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Out Of Stock
HK33, HK53, HK93 Extractor
H&K Heckler & Koch
$67.95H&K 93, 53, & 33 (5.56/.223) Extractor A great replacement for your HK or clone. A high wear item that can become worn, chipped, and non-relaible. A must have spare part. German HK factory fresh production.HKP-00189$67.95 -
On Sale
HK CC9 Backstrap Roll Pin
H&K Heckler & Koch
Now: $4.95Was: $5.95H&K CC9 Backstrap Roll Pin This genuine H&K backstrap roll pin for CC9 pistol secures the interchangeable backstrap to the frame. Compatible With: HK CC9HKP-22110Now: $4.95Was: $5.95 -
On Sale
HK416, MR556, G36, SL8 Gas Piston
Nefarious Arms
Now: $67.95Was: $74.95Nefarious Arms Gas Piston for HK G36, HK SL8, HK416 and HK MR556 A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated for corrosion resistance. Compatible...HKP-21364Now: $67.95Was: $74.95 -
On Sale
HK P7M8, P7M13 Detent - Gas Piston
H&K Heckler & Koch
Now: $8.95Was: $9.95H&K HK P7M8/P7M13 Detent, Piston Compatible With: P7M8 P7M13HKP-16327Now: $8.95Was: $9.95 -
On Sale
HK MP5, HK90 Series Bushing Sleeve for Elbow Spring - Semi Auto
HKP HK Parts
Now: $7.95Was: $8.95HK Parts Distance Sleeve replacement for your elbow spring in your Semi-Auto MP5 New USA manufacture. Semi auto spacer for elbow spring on the HK 90 series trigger packs. Micro polished and made from stainless steel. This is the finest semi auto...HKP-18210Now: $7.95Was: $8.95 -
On Sale
HK MP5 Recoil Spring - Enhanced
HKP HK Parts
Now: $14.95Was: $16.95HKP HK MP5 Enhanced Recoil Spring The HK Parts enhanced recoil spring offers a 5% increase in strength over the factory MP5 spring. Ideal for high round count firearms, suppressed setups, or simply to improve longevity. Won't fit F style recoil rods or...HKP-22209Now: $14.95Was: $16.95 -
On Sale
HK VP9, VP9SK, VP40 Elbow Spring, Drop Safety
H&K Heckler & Koch
Now: $5.95Was: $6.95H&K HK VP9/VP9SK, VP40 Drop Safety Elbow Spring Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40HKP-16835Now: $5.95Was: $6.95 -
On Sale
HK VP9, VP9SK, VP40 Left Side Slide Release Lever
H&K Heckler & Koch
Now: $17.95Was: $19.95H&K HK VP9/VP9SK, VP40 Left Side Slide Release Lever - Black New HK VP series German left side slide release lever for slide. Compatible With: HK VP9, VP9L HK VP9SK HK VP9A1 F HK VP9A1 K HK VP40HKP-16787Now: $17.95Was: $19.95 -
On Sale
HK Mark 23, SOCOM Firing Pin - Titanium
HKP HK Parts
Now: $44.95Was: $49.95Ultimate Firing Pin Mark 23, Socom - Titanium - Grade 6 A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium...HKP-17803Now: $44.95Was: $49.95 -
Out Of StockOn Sale
HK416, MR556 Magazine Release Button
H&K Heckler & Koch
Now: $15.95Was: $16.95Heckler and Koch Magazine Release Button for HK416 and HK MR556 New HK German Manufacture. Compatible With: HK416, MR556 AR15, M4, M16 firearmsHKP-02656Now: $15.95Was: $16.95 -
On Sale
HK SP5K, MP5K Cocking Tube Support Spring - Reverse Stretch
H&K Heckler & Koch
Now: $5.95Was: $6.95Heckler and Koch HK SP5K, MP5K Reverse Stretch Cocking Tube Support Spring A great spare to have on hand as this part can become worn and be lost. The cocking tube support spring applies pressure to the cocking tube detent to enable to the detent to lock...HKP-17873Now: $5.95Was: $6.95 -
On Sale
HK416, MR556 Magazine Catch
H&K Heckler & Koch
Now: $53.95Was: $59.95Heckler and Koch Magazine Catch for HK416 and HK MR556 New HK German manufacture magazine catch for the HK 416 and MR556 family of firearms. Compatible With: HK416, MR556HKP-15458Now: $53.95Was: $59.95