Magazines / Extensions / Brass Catchers

Magazines / Extensions / Brass Catchers

Explore our extensive selection of HK magazines and extensions designed for enhanced capacity and performance across a range of HK models including the VP9, USP, MP5, and more. From rugged steel magazines to advanced polymer extensions, our inventory caters to both tactical and recreational needs, ensuring reliable feeding and durability. Enhance your HK firearm with precision-engineered magazine upgrades, available now for various calibers and applications.

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  • HK CC9 Magazine +5 Extension Kit - 9mm HK CC9 Magazine +5 Extension Kit - 9mm
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    HK CC9 Magazine +5 Extension Kit - 9mm

    HKP HK Parts

    $59.95
    HKP HK CC9 +5 Magazine Extension US-made +5 magazine extension for the HK CC9. This low-profile base pad increases a standard 15-round CC9 magazine to 20 rounds of 9mm.  Machined from aircraft-grade hard coat anodized aluminum with steel hardware...
    $59.95
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  • HK CC9 Magazine Locking Plate - 12 Round HK CC9 Magazine Locking Plate - 12 Round
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    HK CC9 Magazine Locking Plate - 12 Round

    H&K Heckler & Koch

    $5.95
    H&K CC9 Magazine Locking Plate - 12 Round Locking plate for H&K CC9 12-round magazine. Secures the floor plate and internal components to the magazine body. German-made by H&K. Compatible With: HK CC9
    $5.95
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  • New - H&K MG3 50 Round Assault Drum - HKP-22090 HK MG3 50 Round Assault Drum
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    HK MG3 50 Round Assault Drum

    H&K Heckler & Koch

    $27.95
    H&K MG3 50 Round Assault Drum H&K manufactured 50-round drum for the MG3. Unissued, but may have light marks or dust from long-term storage. Clips onto MG3 feed trays. With minor modifications, these can be run on HK21, HK21E, and HK51B setups...
    $27.95
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  • New - H&K 10 Round HK USP .40 S&W Full Size Standard Magzine Floor Plate - Black - HKP-01439 HK USP Full Size Magazine Floorplate - .40 S&W - 10 Round - Standard
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    HK USP Full Size Magazine Floorplate - .40 S&W - 10 Round - Standard

    H&K Heckler & Koch

    $8.95
    10 Round HK USP .40 S&W Full Size Standard Magzine Floor Plate Compatible With: HK USP 40 Full Size S&W 10 Round Magazine
    $8.95
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  • New - H&K 5 Round HK USC .45 ACP Magazine - Black - HKP-20041 HK 5 Round HK USC .45 ACP Magazine
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    HK 5 Round HK USC .45 ACP Magazine

    H&K Heckler & Koch

    $57.95
    HK German Factory 5 Round USC .45 Magazine This is the only magazine that HK offers for the HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible With: All HK USC carbines
    $57.95
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  • New - H&K G36 (5.56/.223) 10 Round Factory Magazine - FDE - HKP-18727 HK G36 (5.56/.223) 10 Round Factory Magazine - FDE
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    HK G36 (5.56/.223) 10 Round Factory Magazine - FDE

    H&K Heckler & Koch

    $87.95
    HK G36 10 Round Magazine in Flat Dark Earth (FDE) Compatible With: G36 G36K G36C Double Stack Capacity Magwell Converted SL8's   Specifications: Capacity: 10-rounds Condition: New, rare find Manufacturer: HK Germany
    $87.95
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  • HK USP9 Magazine - 10 Round - Standard Floorplate H&K Heckler & Koch HKP-22415 HK USP9 Magazine - 10 Round - Standard Floorplate H&K Heckler & Koch HKP-22415
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    HK USP Magazine - 9mm - 10 Round - Standard Floorplate

    H&K Heckler & Koch

    $54.95
    HK USP9 Magazine - 10 Round - Standard Floorplate Factory 10-round magazine for the HK USP9, featuring a standard floorplate. Compatible With: HK USP 9mm
    $54.95
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  • Used - 30 Round Magazine - LEO Marked - Windowless - HK UMP .40 - HKP-20749 HK UMP Magazine - .40 ACP - 30 Round - LEO Marked
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    HK UMP Magazine - .40 ACP - 30 Round - LEO Marked

    H&K Heckler & Koch

    $99.95
    Rare Surplus 30 Round Magazine - LEO Marked - Windowless - UMP .40 S/W Rare UMP .40 windowless magazine with LEO markings. Highly unique magazines as these were "early production" magazines that were used before they switched over to the windowed UMP...
    $99.95
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  • On Sale
    New - H&K HK USPC Lockout Device - HKP-01500 HK USP Compact Lockout Device
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    HK USP Compact Lockout Device

    H&K Heckler & Koch

    Now: $9.95
    Was: $18.95
    HK USPC Lockout Device Easily installs to lock out the magazine. Used to comply with certain state laws and as an added safety feature. This lockout device can be retrofitted to older-style USPC's that do not have the lockout device installed. Compatible...
    Now: $9.95
    Was: $18.95
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  • Out Of Stock
    On Sale
    New - H&K 10 Round HK P2000SK 9mm Magazine - Black - BLEMISHED - HKP-00308-B HK P2000SK Magazine - 10 Round  - 9mm - Black- BLEMISHED

    HK P2000SK Magazine - 10 Round - 9mm - Black- BLEMISHED

    H&K Heckler & Koch

    Now: $33.95
    Was: $54.95
    H&K 10 Round HK P2000SK 9mm Magazine - Black - BLEMISHED INSTALLATION MARKINGS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Fits the HK P2000SK sub-compact...
    Now: $33.95
    Was: $54.95
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  • HK CC9 Magazine Body - 9mm - 12 Round HK CC9 Magazine Body - 9mm - 12 Round
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    HK CC9 Magazine Body - 9mm - 12 Round

    H&K Heckler & Koch

    $5.95
    Heckler and Koch 12-Round Magazine Body for HK CC9 OEM 10-round magazine body for the HK CC9, made in Germany by Heckler & Koch and ideal as a factory-spec replacement. Compatible With: CC9
    $5.95
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  • Out Of Stock
    New - MKE 30 Round AP53 Magazine - HKP-22088 Century Arms AP53 Magazine - 30 Round

    Century Arms AP53 Magazine - 30 Round

    MKE

    $54.95
    MKE 30 Round Magazine - Steel The MKE 30-Round Steel Magazine is a rugged, corrosion-resistant mag designed for the MKE 5.56 AP53 platform. Compatible With: Century Arms AP53 HK53 In-spec. clones and custom builds
    $54.95
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