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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
On Sale
HK90 Series Cocking Tube End Cap
H&K Heckler & Koch
Now: $35.95Was: $39.95H&K Cocking Tube End Cap/Dust Cap This part is Factory HK, painted black and not surplus or old stock. Each is factory-fresh and manufactured in steel. Compatible With: Compatible with all 90 series HK firearms and clones that use a triple...HKP-00099Now: $35.95Was: $39.95 -
On Sale
HK MP5, HK90 Series Hammer Strut
H&K Heckler & Koch
Now: $8.95Was: $9.95H&K G3,91,PTR, 93,33 & MP5, 94 Hammer Strut New HK German Hammer Strut for 90 series rifles and pistols. A perfect spare to have on hand. This is a non-pinned hammer spring shank. Perfect for your HK project or rebuild. Compatible With: The...HKP-15445Now: $8.95Was: $9.95 -
Out Of Stock
HK USP, P2000, HK45 Trigger Return Spring - Heavy 8.5 lb.
H&K Heckler & Koch
$11.95Heckler and Koch Heavy 8.5 lb. Trigger Return Spring Also known as the heavy LEM trigger spring for the LEM and TGS conversions. Compatible With: USP Full Size USP Compact USP Tactical USP Elite USP Expert P2000 (not for the SK...HKP-02265$11.95 -
On Sale
HK USP, Mark 23 Magazine Locking Plate - .45 ACP
H&K Heckler & Koch
Now: $7.95Was: $8.95HK Magazine Locking Plate For .45 Cal - 12 Round Magazines New HK German magazine locking plate. Compatible With: HK Mark 23 12 Round HK USP .45 12 RoundHKP-01588Now: $7.95Was: $8.95 -
On Sale
HK45, HK45 Compact, USP, USP Compact LEM Cocking Piece Elbow Hammer Rebound Spring
H&K Heckler & Koch
Now: $8.95Was: $9.95HK LEM Cocking Piece Elbow Hammer Rebound Spring This item is a common wear and replacement item for those who have LEM triggers installed. Compatible With: USP USPC HK45 HK45CHKP-02479Now: $8.95Was: $9.95 -
Out Of Stock
HK Spring - Bent Elbow with Roller - Semi - Trigger, Sear Pack
H&K Heckler & Koch
$29.95H&K Heckler and Koch Semi Trigger Pack Or Sear Pack Elbow Spring W/ Roller Each spring is a great replacement for the converted packs that have bent elbow springs or for those that used the original F/A elbow springs that were bent to shape and are...HKP-00070$29.95 -
On Sale
HK Mark 23 Firing Pin Retaining Pin
H&K Heckler & Koch
Now: $7.95Was: $8.95HK Mark 23 Firing Pin Retaining Pin Replacement pin for the Mark 23 firing pin block. A must have part to have on hand.HKP-01601Now: $7.95Was: $8.95 -
On Sale
HK MP5, MP5K Magazine Locking Plate - 9mm
H&K Heckler & Koch
Now: $15.95Was: $16.95HK MP5 & MP5K Magazine Locking Plate - German New steel HK German manufactured MP5, MP5K curved magazine locking plate for the magazine. Compatible With: 40-round magazine 9mm 30-round magazine 9mm 20-round magazine 9mm 15-round magazine...HKP-01490Now: $15.95Was: $16.95 -
On Sale
HK416, MR556, HK417, MR762 Detent Takedown Pin
H&K Heckler & Koch
Now: $8.95Was: $9.95Heckler and Koch HK417, HK MR556, HK417, HK MR762 Detent Takedown Pin Factory H&K takedown pin for MR556 A4. Compatible With: HK416, MR556 HK417, MR762HKP-02540Now: $8.95Was: $9.95 -
On Sale
HK45, HK45 Compact USP Detent Compression Spring
H&K Heckler & Koch
Now: $4.95Was: $5.95HK Slide Detent Compression Spring For All HK USP & HK45, HK45C Models The detent spring is needed for positive de-cocking and safety functions of the detent plate. A spare and replacement part as it is prone to breakage and wear. This is also one of...HKP-01257Now: $4.95Was: $5.95 -
On Sale
HK416, MR556, MR762 Bolt Catch Pin
H&K Heckler & Koch
Now: $4.45Was: $4.95Heckler and Koch HK MR556, HK MR762, and HK416 Bolt Catch Pin The factory roll pin is used to hold the bolt catch in place. Great to have on hand in the event this item becomes lost or damaged when doing maintenance Compatible With: HK416,...HKP-02677Now: $4.45Was: $4.95 -
HK416 A1, MR556 Barrel Nut
H&K Heckler & Koch
$53.95Heckler and Koch Barrel nut for MR556A1 rifle All steel barrel nut. This item is a must-have repair and replacement part for removal or when you have any work done to your barrel, as the barrel nut may become damaged in the removal and...HKP-02535$53.95