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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HK MP5, HK90 Series Extended Selector Lever - Left Side ESSL - Ambi Burst Trigger packs
H&K Heckler & Koch
$94.95Heckler and Koch Extended Selector Lever - Burst 3 Position Brand new, genuine German HK extended ambi left side safety selector with axis for all ambidextrous burst lowers. This is a LEFT side EXTENDED Safety Selector Lever ESSL for ambidextrous...HKP-16973$94.95 -
On Sale
HK UMP, USC Optic Rail - Picatinny
H&K Heckler & Koch
Now: $12.95Was: $19.95HK UMP, USC Optic Rail - Picatinny Factory HK UMP and USC Picatinny machined aluminum optic rail with mounting hardware. Compatible With: HK UMP, USCHKP-22541Now: $12.95Was: $19.95 -
HK UMP, USC Recoil Rod Spring - Enhanced
HKP HK Parts
$11.95HKP Enhanced Recoil Rod Spring for HK UMP, USC Upgrade or replace your UMP recoil system with HKP's enhanced heavy recoil rod spring from HK Parts. This spring is approximately 10 percent stronger than a standard recoil spring, making it ideal for...HKP-22507$11.95 -
HK MP5, SP5 Folding Stock - 11"
Zenith
$99.95Zenith HK MP5, SP5 Folding Stock Folds to the side for compact storage while providing a solid, stable shoulder stock when deployed. No modifications required on in-spec MP5 receivers. Specifications: Polymer and fiberglass reinforced Weight: 14.4...HKP-22420$99.95 -
HK91, G3 Front Sight Tower - SURPLUS
H&K Heckler & Koch
$16.95H&K G3/91 Front Sight Tower - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine H&K steel front sight tower for the G3 & HK91. Provides the front sight post assembly for target acquisition and secures the...HKP-22158$16.95 -
HK416A5, MR556 Barrel - 5.56 / .223 - 11"
H&K Heckler & Koch
$424.95Heckler and Koch 11" Barrel for HK416A5, MR556 A4, MR556 A5 Factory German 11" HK416A5, MR556 barrel. Cold hammer-forged and built to HK’s standard for durability, accuracy, and service life. The 1:7 twist rate stabilizes a wide range of 5.56 NATO...HKP-21932$424.95 -
HK MP5, VP9 Reflex Sight HE-507K - Green
Holosun
$354.95Holosun HK VP9 SCS-MOS Reflex Sight The HE507K-GR X2 is an open reflex optical sight designed for subcompact pistol applications. Lock Mode, when activated, locks the buttons preventing inadvertent setting changes. Additional features include...HKP-21677$354.95 -
On Sale
HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED
H&K Heckler & Koch
Now: $2.96Was: $5.95HK MP5SF Bushing Sleeve - Elbow Spring with roller - USED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. Features: Precision-machined elbow spring...HKP-03330-USEDNow: $2.96Was: $5.95 -
HK MP5, SP5 Handguard - Slimline Style
HKP HK Parts
$22.95HKP MP5, SP5 Slimline Handguard Once a rare find after HK discontinued it, the classic slimline handguard returns with a fresh, U.S-made update. Specially engineered for the MP5, SP5, and compatible clones, this new version features a reimagined pattern...HKP-21471$22.95 -
HK G3 .22 20 Round Conversion Magazine - USED
$199.95HK G3 .22 20 Round Conversion Magazine - USED HK .22 caliber conversion kit 20-round magazine for The G3/91. Ideal for those that have the caliber conversion kit and wants to stack up on spare magazines. Condition is used to like new in the gray paint...HKP-20750$199.95 -
Out Of Stock
HK G36, SL8 Handguard With Heat Shield
H&K Heckler & Koch
$115.99HK G36 & SL8 Forearm With Heat Shield New HK German G36 & HK SL8 handguard with heat shield & bipod attachment & sling loop point. A drop in part for your HK G36 or SL8 rifle.HKP-00271$115.99 -
On Sale
Key Mount Tool - Crows Foot Wrench for Dead Air Suppressors
Wasatch Arms
Now: $29.95Was: $54.95Wasatch Arms Key Mount Tool The Dead Air Crows Foot Wrench engages directly on the Key Mount brake allowing proper axial torque for quick and easy installation. Made in the USA and finished in black nitride.HKP-20299Now: $29.95Was: $54.95