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
HK91, G3 Barrel - 7.62x51 - 17.7" - Threaded 5/8x24
RCM
$264.99RCM HK G3/91 Threaded Barrel - 5/8x24-CHE Machined by RCM from a Mil-Spec 41V50 Hammer Forged Blank. These blanks are considered to be one of the finest made. 1:10 twist, Nitride finish. Perfect for that HK build or to replace that shot out barrel. Each...HKP-21838$264.99 -
HK MP5/SP5 Universal SEF Housing - Like New
H&K Heckler & Koch
$149.95H&K MP5/SP5 SEF Universal Housing - Clipped & Pinned - Like New The ultimate solution for MP5 and SP5 style receivers, this universal trigger housing simplifies swapping between receivers. German HK-manufactured, it allows you to easily transfer...HKP-21779$149.95 -
HK417, MR762 QD End Plate - Flush Cup
H&K Heckler & Koch
$152.95H&K HK MR762/417 Flush Cup QD End Plate Factory HK flush end cap with dual QD sockets for ambidextrious sling attachment. Compatible With: HK MR762 HK 417HKP-21642$152.95 -
On Sale
Harris Bipod Adapter - Picatinny - US
HKP HK Parts
Now: $9.95Was: $33.95Harris Bipod Adapter This mounts to any Picatinny rail and proves a stable platform to add a Harris bipod or other similar-mounting bipods. This will fit any Picatinny spec rail or rail system. Made in the US out of aircraft-grade aluminum and...HKP-21528Now: $9.95Was: $33.95 -
Lancer 30 Round AR-15 Magazine - Smoke
Lancer
$29.95Lancer 30 Round AR-15 Magazine - Smoke Lancer set out to design a better 5.56 magazine, one with the reliability of steel and the durability and weight of the polymer. The L5AWM’s exclusive hybrid design includes a hardened steel feed lip...HKP-21188$29.95 -
HK MP5 Magazine - Supersonic Labeled - 30 Round
Zenith
$43.95Zenith 30 Round HK MP5 Supersonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Features: Durable electro-plated black finish for exceptional corrosion resistance All steel...HKP-20830$43.95 -
Lee Sporting LS5 HK MP5 Complete Trigger Group - Semi Shelf
Lee Sporting
$549.95Lee Sporting LS5 Complete Trigger Group - MP5 Semi-shelf The LS5 trigger group from Lee Sporting is a definitive ergonomic upgrade over the OEM grip, boasting a weight reduction of 4.3oz compared to the original. This billet aluminum trigger group is...HKP-20465$549.95 -
HK MP5 Bolt Group - Complete - .40 S&W, 10mm
HKP HK Parts
$414.95RCM- MP5 40 & MP5 10mm - Bolt Group Complete Ideal to replace out of spec, worn, or broken bolt groups or for that custom build. Includes: RCM bolt head complete RCM locking piece RCM firing pin RCM firing pin spring RCM full auto bolt carrier...HKP-19723$414.95 -
HK SP5 Spec Only 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED
H&K Heckler & Koch
$89.95H&K SP5 Spec Only 9mm SEF Navy Style Trigger Housing - Clipped & Pinned - USED In used but good condition. It will have some nicks but overall this house is in good working condition. For use with SEF style trigger packs. This will not work with...HKP-19488$89.95 -
HK417, MR762 Magazine Catch Retainer Ring
H&K Heckler & Koch
$10.95H&K HK 417/MR762 Magazine Catch Retainer Ring Compatible With: HK 417 HK MR762HKP-16521$10.95 -
Battle Sight - Front
Troy Industries
$119.95Troy Industries Front Battle Sight Durability and dead-on accuracy have made the Troy Industries Front Folding Battle Sight one of the best choices for Special Ops and tactical users worldwide. Please Note: It will not work on a railed front gas block...HKP-00031$119.95 -
HK G36, SL8 Bolt Head Ejector Pin
$6.95HK G36/SL8 (5.56/.223) Bolt Head Ejector Pin HK Ejector roll pin for G36, SL8 bolt heads. This item is the pin that holds the ejector & ejector spring in place. A common wear & replacement item and a must have when doing bolt head maintenance...HKP-18372$6.95