HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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HK21, HK11 Trunnion
RCM
$274.95RCM HK21 Trunnion When RCM set out to make a replacement trunnion for the venerable HK21, they started the process by putting a factory unit through rigorous destructive metal testing. The end-product: a US-made trunnion blending the proper...HKP-21609$274.95 -
HK45 Thread Protector - .578x28 RH
HKP HK Parts
$19.95HKP HK45 .45 ACP Thread Protector - Threaded .578x28 RH U.S.-made titanium thread protector designed for .45 ACP barrels threaded .578x28 right-hand. Features a fully hooded profile that extends over the muzzle to protect exposed threads and the barrel...HKP-19514$19.95 -
On Sale
HK416A5, MR556 Enhanced Incomplete Trigger Guard
H&K Heckler & Koch
Now: $22.95Was: $39.95Enhanced HK Trigger Guard Upgrade Incomplete - A5 - HK416 & HK MR556 Upgrade your MR556, HK416 & CR556 to the latest gen HK416 A5 enhanced trigger guard. Enlarged trigger guard area to use with gloves. Please Note: This item is...HKP-19377Now: $22.95Was: $39.95 -
Out Of Stock
HK416, MR556, MR762 Bolt Catch Plunger
H&K Heckler & Koch
$9.95Heckler and Koch HK MR556 and HK416 Bolt Catch Plunger Compatible With: HK416, MR556 HK MR762HKP-02655$9.95 -
HK91, G3, PTR Grip Frame SEF- Metal HK German
$189.95HK91, G3, PTR-91 Style Metal Grip Frame SEMI Each German HK housing started out as a factory HK German select fire metal housing. Each housing then had the housing professionally modified by welding in a factory correct semi auto shelf. After the...HKP-17637$189.95 -
HK33, HK53, HK93 Receiver Flat - Complete Weldment Set
HKP HK Parts
$229.95HK .223, 556, & 300 BLK Receiver Flat With Complete Weldment Set Combo Each flat and weldment set comes with 223/556/300BLK complete as a builders combo ready to assemble. Compatible With: HK93, HK33, & HK53 Style Builds 300...HKP-00006$229.95 -
HK MP5, SP5 Fixed Stock - A2 - Green
Michaels Machines
$199.95Michaels Machines A2 Fixed Stock made in the USA for HK MP5 - OD GREEN Each stock counts as one US made 922r compliant part. Simply the best US made HK MP5 stock featuring a rubberized backplate that reduces felt recoil as well as carrier abuse. Ideal...HKP-18804$199.95 -
HK33, HK93 A2 Buttstock - Surplus
H&K Heckler & Koch
$99.95H&K HK33/HK93 A2 Black Buttstock - Surplus HK33 complete surplus buttstock assembly in good condition. In perfect working order but will have signs of use. This is the original buttstock for the HK33A2. Compatible With: HK33 HK93 HK53 V33, 53, C93HKP-20133$99.95 -
HK G36, SL8 Bipod
H&K Heckler & Koch
$449.95New HK G36 & HK SL8 Factory Bipod Heckler & Koch German made. Manufactured with steel-reinforced HK composites. Compatible With: HK G36 HK SL8-6 Newer black rifles or the SL8-1 with a proper forearm HK G36K - Must be an early style that has a...HKP-00270$449.95 -
HK MP5, HK90 Series Bushing Sleeve for Elbow Spring - Semi Auto
HKP HK Parts
$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-18210$8.95 -
HK MP5, G3, HK33, PTR, SP5 Night Sight Set
Meprolight
$109.00Meprolight HK MP5, G3, 33, PTR, SP5 Night Sight Set Meprolight produces a bright green night sight available for Heckler & Koch sub guns and rifles. These tritium night sight inserts are a no-brainer for a quicker, more accurate point-and-shoot...HKP-02564$109.00 -
HK MP5, SP5K Extractor - 9mm
MKE
$19.95MKE HK MP5/K 9mm Extractor Keep your MP5 or MP5K running strong with this MKE 9mm extractor. Perfect for replacing a worn part or completing a build, it’s made to HK specs for smooth, reliable performance you can count on. Compatible With: HK MP5,...HKP-21919$19.95