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.

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  • New - Choate HK 91/G3 (7.62x51/.308) Adjustable Tactical Folding Stock - HKP-00884 HK91, G3 Adjustable Tactical Folding Stock
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    HK91, G3 Adjustable Tactical Folding Stock

    Choate

    $139.95
    HK G3, 91 & PTR Tactical Folding Stock Each stock is adjustable from 14 1/4" to 15 1/4" using the included adjustable spacer system, which will allow a full 2" range in adjustment for the specific user or mission requirements. Comes with all the...
    HKP-00884
    $139.95
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  • New - HKP HK 91/G3/MSG90 5 Round Magazine - Steel - (7.62x51/.308) - HKP-16250-M HK91, G3, PTR Magazine - 5 Round
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    HK91, G3, PTR Magazine - 5 Round

    HKP HK Parts

    $79.95
    HKP HK 91/G3/MSG90 5 Round Magazine - Steel - (7.62x51/.308) 5 Round German Steel 308 Magazine With US Made Floorplate (Counts as 1 US made Part for 922R compliance) For HK Rifles.This magazine is made by Heckler and Koch & converted to five rounds...
    HKP-16250-M
    $79.95
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  • New - HKP MP5 40/10 Bolt Hold Open Weldment Set Complete - HKP-17648
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    HK MP5 Weldment Set - .40 S&W, 10mm

    HKP HK Parts

    $189.95
    HKP MP5 40/10 Bolt Hold Open Weldment Set Complete Not offered or available anywhere else. This is the correct weldment set for the MP5 40/10 BHO components. 
    HKP-17648
    $189.95
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  • New - H&K Sear Complete For HK Burst Trigger Packs - HKP-17028
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    HK MP5K, HK90 Series Burst Trigger Sear Complete

    H&K Heckler & Koch

    $59.95
    Heckler & Koch's Sear Catch for HK90 Series and HK MP5K - Steel - German For Burst Trigger Packs Compatible With: 0,1,3,F 0,1,2,F 0,1,3 0,1,2
    HKP-17028
    $59.95
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  • Out Of Stock
    New - H&K HK MR556/MR762/416/417 Flip Up Rear Sight- 3mm - HKP-01405 H&K HK MR556/MR762/416/417 Flip Up Rear Sight- 3mm H&K Heckler & Koch HKP-01405

    HK416, MR556, HK417, MR762 Folding Rear Sight - 3mm

    H&K Heckler & Koch

    $299.95
    Heckler and Koch 3mm Flip Up Rear Sight for HK416, MR556, HK417, MR762 HK factory quick-release flip-up rear sight for MR556, MR762, HK416, and HK417 platforms. This rear sight attaches directly to any standard Picatinny rail using HK’s push-button...
    HKP-01405
    $299.95
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  • New - HKP HK 91/G3 Extractor - Enhanced Coated Polish - HKP-22182-M HK91, G3 Extractor - Enhanced Coated Polish
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    HK91, G3 Extractor - Enhanced Coated Polish

    HKP HK Parts

    $24.95
    HKP HK 91/G3 Extractor - Enhanced Coated Polish  Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...
    HKP-22182-M
    $24.95
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  • New - H&K MR762/417 Magazine - 5 Round - HKP-22013 HK417, MR762 Magazine - 5 Round
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    HK417, MR762 Magazine - 5 Round

    H&K Heckler & Koch

    $78.95
    H&K 5 Round MR762/417 Magazine 5-round magazine for the MR762 and HK417.  Compatible With: MR762 HK417
    HKP-22013
    $78.95
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  • Out Of Stock
    New - H&K HK MR556 A4 13.4" Handguard - HKP-21935 HK MR556 A4 Handguard - 13.4"

    HK MR556 A4 Handguard - 13.4"

    H&K Heckler & Koch

    $299.99
    H&K HK MR556 A4 13.4" Handguard This handguard is expertly engineered for precision and adaptability, featuring a robust Picatinny rail at the 12 o'clock position that guarantees seamless mounting of optics and accessories. With M-LOK slots...
    HKP-21935
    $299.99
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  • New - HKP UMP/USC Extended Handguard - HKP-21679 HK UMP, USC Extended Handguard
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    HK UMP, USC Extended Handguard

    HKP HK Parts

    $249.95
    HKP UMP/USC Extended Handguard - Black Cerakote The HK Parts UMP extended handguard is the ultimate choice for your UMP or USC. M-LOK attachment points and a robust picatinny rail on the extended section provide accessory mounting points for any loud-out...
    HKP-21679
    $249.95
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  • New - Strike Industries HK MP5 Dual Folding Stabilizer with Adapter - HKP-21655-M HK MP5 Dual Folding Stabilizer - With Adapter - OD Green
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    HK MP5 Dual Folding Stabilizer - With Adapter - OD Green

    HKP HK Parts / Strike Industries

    $319.95
    Strike Industries Dual Folding Stabilizer with HKP MP5 Adapter The Strike Industries Dual Folding Stabilizer paired with the HKP MP5 picatinny adapter is one of the best options on the market for those looking for a light, compact folding stock...
    HKP-21655-M
    $319.95
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  • On Sale
    New - HKP HK21 Drum Hanger & H&K 100rd Drum - HKP-21633 HK21 Drum Hanger and100rd Drum
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    HK21 Drum Hanger and100rd Drum

    HKP HK Parts

    Now: $389.95
    Was: $435.95
    HKP HK21 Drum Hanger with H&K 100 Round Drum Complete your HK21 or FMP21 build with our HKP drum hanger and H&K original 100-round drum.  Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50 Rockwell, and...
    HKP-21633
    Now: $389.95
    Was: $435.95
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  • New - HKP Dual HK MP5 Magazine Clamp Conversion Screw - HKP-20318 HK MP5 Dual Magazine Clamp Conversion Screw - G3 to MP5 Mags
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    HK MP5 Dual Magazine Clamp Conversion Screw - G3 to MP5 Mags

    HKP HK Parts

    $2.95
    HKP Dual HK MP5 Magazine Clamp Conversion Screw This screw converts a HK91, G3, PTR dual magazine clamp (HKP-19634) into the correct length for use with an MP5 magazine. Includes:  1 screw
    HKP-20318
    $2.95
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