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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Out Of Stock
HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"
H&K Heckler & Koch
$389.95H&K HK MR556 A4/A5 16.5" Barrel This 16.5" factory H&K MR556 A4 barrel is cold hammer-forged from high-quality steel for exceptional durability, accuracy, and longevity. Manufactured to Heckler & Koch’s exacting standards, it features a...HKP-21931$389.95 -
On Sale
HK MP5 Trunnion - Gunsmith Special
USA
Now: $24.95Was: $54.95HK MP5 Trunnion - Gunsmith Special US made HK MP5 trunnions sold as-is. Will require work before being functional. We recommend the work be performed by a professional gunsmith. The condition will vary from part-to-part vs. the pictured unit. Compatible...HKP-99089Now: $24.95Was: $54.95 -
HK23E, HK13 Barrel - 5.56 / .223 - 17.7"
RCM
$699.95RCM HK23E Barrel RCM HK23E light profile barrels are made from mil-spec 41V50 CHF blanks that are fully salt bath nitrided for optimal wear and corrosion resistance. These barrels are the finest out there to complete your HK23E or HK13 build. These are...HKP-21837$699.95 -
Out Of Stock
HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5
Nefarious Arms
$594.95Nefarious Arms HK 416/MR556 14.5" A5 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or pistol build. Compatible With: HK 416 (A5,...HKP-21590$594.95 -
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 -
B&T Angled Foregrip - Picatinny
B&T Brugger & Thomet
$71.99B&T Angled Foregrip - Coyote Tan - Picatinny Mount For those shooters who prefer an angled foregrip, this grip is the perfect solution. The lugs at the end of the grip assure a firm rest for the supporting hand. The grip can be mounted easily onto...HKP-21392$71.99 -
HK MP5K Trigger Housing - AR Match
Magpul
$349.95Magpul HK MP5K AR Trigger Housing This match-grade trigger housing is expertly crafted to elevate the performance of your HK MP5K. Our enhanced HK-AR Navy ambidextrous lower housing and Magpul MOE grip not only provide a modern aesthetic but also feature...HKP-21379-M$349.95 -
PTR Flat Tip Front Sight - Gen 2 - Orange
Blitzkrieg Components
$84.95Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight delivers a fast and precise aiming point with its conventional flat-tipped post and bright orange stripe. Designed for easy installation, it utilizes a roll pin...HKP-21103$84.95 -
HK Single Point Leather Sling - OD Green
HKP HK Parts
$49.95Single Point Leather Sling - OD Green Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...HKP-20163$49.95 -
T1 Optic Mount - Picatinny - Quick Release
AIM
$38.95AimSports - T1 Quick Release Mount - Absolute Co-Witness Features a machined recoil lug and steel hardware to prevent wear between mounting surfaces. Utilizing a quick release base, the generously sized lever is textured for easy operation under any...HKP-19336$38.95 -
HK G36 Complete Full Auto Slide
H&K Heckler & Koch
$24.95H&K HK G36 Complete Full Auto SlideHKP-16360$24.95 -
Out Of Stock
B&T Vertical Fixed Unigrip
B&T Brugger & Thomet
$119.00B&T Vertical Fixed Unigrip Swiss made B&T vertical for-end grip for picatinny. Made of aluminum Will fit all mil-spec picatinny rails. Measures long. Specifications: Condition: Factory new Color: Black Material: Polymer/alloyHKP-18043$119.00