HK Rifle / SMG Parts

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.

  • Product
  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • On Sale
    New - H&K 4 Position Burst To 0,1 Only - Conversion Selector Lever Set - HKP-17996 HK MP5 Selector Lever Conversion Set - 4 Position Burst To 0,1
    Add to Cart

    HK MP5 Selector Lever Conversion Set - 4 Position Burst To 0,1

    H&K Heckler & Koch

    Now: $129.95
    Was: $179.95
    HK 4 Position Burst To Semi ONLY Conversion Selector Lever Set - German HK The German HK selector lever set will allow the use to convert the following: 0,1,3,F Trigger packs 0,1,2,F Trigger packs To safe, semi only as far as the way the selector...
    HKP-17996
    Now: $129.95
    Was: $179.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $129.95
    Was: $179.95
    Subtotal:
  • HK UMP Apparel - Hats, Patches, and Shirts HK UMP Apparel - Hats, Patches, and Shirts
    Choose Options

    HK UMP Apparel - Hats, Patches, and Shirts

    HKP HK Parts

    $0.00
    HKP HK UMP Apparel and Patch Collection  Represent your platform with the HK Parts UMP Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...
    HKP-22459-M
    $0.00
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    $0.00
    Subtotal:
  • On Sale
    HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325 HK MP5, G3, PTR, HK93 Push Button for Magazine Catch H&K Heckler & Koch HKP-22325
    Add to Cart

    HK MP5, G3, HK93 Magazine Catch Push Button- Used

    H&K Heckler & Koch

    Now: $4.95
    Was: $8.95
    H&K MP5, G3, PTR, HK93 Push Button for Magazine Catch - Used   Factory original HK push button replacement part. Limited quantity available.   This is a used part, sold AS-IS, and is not eligible for return.  Compatible...
    HKP-99316
    Now: $4.95
    Was: $8.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $4.95
    Was: $8.95
    Subtotal:
  • ACR Folding Stock - Telescopic 7 Position - Picatinny Rail ACR Folding Stock - Telescopic 7 Position - Picatinny Rail
    Choose Options

    ACR Folding Stock - Telescopic 7 Position - Picatinny Rail

    F5 MFG

    $249.95
    F5 ACR Folding Stock - Picatinny Mount - Universal The F5 ACR folding stock easily attached to any Picatinny rail, giving the user the versatility of swapping between any Picatinny equipped firearm. Features: 7-position...
    HKP-22280-M
    $249.95
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    $249.95
    Subtotal:
  • On Sale
    MKE HK MP5/AP5 End Cap Complete MKE HKP-22258 MKE HK MP5/AP5 End Cap Complete MKE HKP-22258
    Add to Cart

    HK MP5, AP5 End Cap - Complete

    MKE

    Now: $64.95
    Was: $89.95
    MKE HK MP5/AP5 End Cap Complete Replacement end cap made by MKE on HK tooling. This robust all-steel end cap is a superior upgrade from the standard polymer options. It not only features an integrated H buffer for enhanced performance but also includes a...
    HKP-22258
    Now: $64.95
    Was: $89.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $64.95
    Was: $89.95
    Subtotal:
  • New - H&K MR762 A4 1.0mm Gas Vent Screw - HKP-21954 HK MR762 A4 Gas Vent Screw - 1.0mm-2.5mm
    Choose Options

    HK MR762 A4 Gas Vent Screw - 1.0mm-2.5mm

    H&K Heckler & Koch

    $29.95
    Heckler and Koch MR762 A4 Gas Vent Screws German gas vent screw for MR762 A4 gas block. Specifications: Factory reference: 1.3mm is the common factory vent screw size for MR556 A4 Sizing reminder: Larger mm equals more venting, Smaller mm...
    HKP-21954-M
    $29.95
    Choose Options
    Qty in Cart: 0
    Quantity:
    Price:
    $29.95
    Subtotal:
  • Out Of Stock
    New - H&K HK MR556 A4 16.5" Barrel - HKP-21931 HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"

    HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"

    H&K Heckler & Koch

    $389.95
    H&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
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $389.95
    Subtotal:
  • New - H&K HK G3/HK 91 Muzzle Protector Cap - HKP-21892 HK91, G3 Muzzle Protector Cap
    Add to Cart

    HK91, G3 Muzzle Protector Cap

    H&K Heckler & Koch

    $8.95
    Heckler and Koch Muzzle Protector Cap for your HK91 and HK G3  Genuine HK muzzle cap designed to keep debris, water, etc., from entering the barrel. The cap can be removed by hand or when the first round is fired with the cap installed. Standard...
    HKP-21892
    $8.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $8.95
    Subtotal:
  • On Sale
    New - HK MP5 Trunnion - Gunsmith Special - HKP-99089 HK MP5 Trunnion - Gunsmith Special
    Add to Cart

    HK MP5 Trunnion - Gunsmith Special

    USA

    Now: $24.95
    Was: $54.95
    HK 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-99089
    Now: $24.95
    Was: $54.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $24.95
    Was: $54.95
    Subtotal:
  • New - RCM HK23E Barrel - CHF - HKP-21837 HK23E, HK13 Barrel - 5.56 / .223 - 17.7"
    Add to Cart

    HK23E, HK13 Barrel - 5.56 / .223 - 17.7"

    RCM

    $699.95
    RCM 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
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $699.95
    Subtotal:
  • On Sale
    New - HKP HK MR556/416 Extractor - BLEMISHED - HKP-21826-B HK416, MR556 Extractor - BLEMISHED
    Add to Cart

    HK416, MR556 Extractor - BLEMISHED

    HKP HK Parts

    Now: $24.95
    Was: $39.95
    HKP HK MR556/416 Extractor - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HKP HK MR556/416 extractor is a precision-engineered component designed...
    HKP-21826-B
    Now: $24.95
    Was: $39.95
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $24.95
    Was: $39.95
    Subtotal:
  • Out Of Stock
    New - Nefarious Arms HK 416/MR556 14.5" A5 Barrel - HKP-21590 HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5

    HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5

    Nefarious Arms

    $594.95
    Nefarious 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
    Out Of Stock
    Qty in Cart: 0
    Quantity:
    Price:
    $594.95
    Subtotal:
  • Total: items /

Adding your products to cart