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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  • Used - H&K 91/G3 (7.62x51/.308) 20 Round Magazine - Steel - Refinished - HKP-21587 HK91, G3 20 Round Magazine - Steel - Refinished
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    HK91, G3 20 Round Magazine - Steel - Refinished

    H&K Heckler & Koch

    $84.95
    HK German 20 Round Steel Magazine - Refinished HK G3 factory steel 20-round magazine, expertly restored to its former glory. This magazine has been meticulously refinished inside and out, featuring a polished follower along with a fully parkerized finish...
    $84.95
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  • New - HKP HK P2000 +10 Magazine Extension Kit – Black - HKP-20811 HK P2000 Magazine Extension Kit - +10
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    HK P2000 Magazine Extension Kit - +10

    HKP HK Parts

    $64.99
    HKP HK P2000 +10 Magazine Extension Kit HK Parts magazine extension adds 10 additional rounds to the HK P2000 magazine with the simple swap of the floor plate & high-reliability mag spring. HKP highly recommends using a magazine loader when loading...
    $64.99
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  • New - HK UMP .45 Magazine Locking Plate - HKP-20136 HK UMP Magazine Locking Plate - .45 ACP - US
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    HK UMP Magazine Locking Plate - .45 ACP - US

    USA

    $6.95
    HK UMP .45 Magazine Locking Plate   Made in the USA
    $6.95
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    $6.95
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  • New - H&K G36 (5.56/.223) 30 Round Magazine - FDE - HKP-18595 HK G36 (5.56/.223) 30 Round Magazine - FDE
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    HK G36 (5.56/.223) 30 Round Magazine - FDE

    H&K Heckler & Koch

    $119.95
    HK German G36 30 Round Magazine New HK German 30 round magazine fits all G36, G36K, G36C variants & converted SL8's with the G36 magwell. New Heckler & Koch German mag. Factory fresh latest HK manufacture. Compatible With: G36, G36K, G36C SL8...
    $119.95
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    $119.95
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  • New - H&K MP5, 94 Magazine Spring - 15 Round - HKP-00090
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    HK MP5, 94 Magazine Spring - 15 Round

    H&K Heckler & Koch

    $8.95
    HK German MP5, 94, SP89, MP5K 15 Round Magazine Spring Compatible with all 15 Round MP5 and 94 style curved magazines. This is a must-have repair and replacement part, great to have for spares.
    $8.95
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  • New - B&T 30 Round APC10/SPC10 Magazine - 10mm - HKP-21720 New - B&T 30 Round APC10/SPC10 Magazine - 10mm - HKP-21720
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    B&T APC10, SPC10 Magazine - 30 Round

    B&T Brugger & Thomet

    $100.00
    B&T 30 Round APC10/SPC10 Magazine - 10mm Compatible with any G pattern 10mm B&T firearm.  Compatible With: B&T APC10 B&T SPC10
    $100.00
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    $100.00
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  • New - H&K / HKP 25 Round HK VP9 Magazine – Red Cerakote - HKP-20896 HK VP9 Magazine - 25 Round – Red Cerakote
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    HK VP9 Magazine - 25 Round – Red Cerakote

    HKP HK Parts / Heckler & Koch

    $89.95
    H&K / HKP 25 Round HK VP9 Magazine – Red Cerakote HKPARTS +10 alloy magazine extension coupled with an HK 15 round factory German magazine adds 10 additional rounds total for a fully assembled 25 round HK VP9/P30 magazine. Ideal for competitive...
    $89.95
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  • Used - H&K 30 Round HK MP5 40/10 Magazine - Gray - Used - HKP-01726 HK 30 Round HK MP5 40/10 Magazine - Gray - Used
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    HK 30 Round HK MP5 40/10 Magazine - Gray - Used

    H&K Heckler & Koch

    $159.95
    30 Round HK MP5 40/10 Magazine - Gray - USED These magazines are no longer available and we have just a few remaining units.  Once they are gone, they are gone for good. These magazines are USED and are not eligible for return.  Please...
    $159.95
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    $159.95
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  • New - HKP 10 Round MP5 .22LR Magazine Spring - HKP-20297
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    HK MP5 Magazine Spring - .22LR - 10 Round

    HKP HK Parts

    $3.95
    HKP 10 Round MP5 .22LR Magazine Spring New fresh production mag spring for your HK MP5 .22 magazine. Please note: This spring can also be used to convert the 10 round magazine to a 10 round magazine. It has come to our attention that Walther has made...
    $3.95
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  • New - H&K 10 Round HK 45 Magazine Housing - Black - HKP-02494 HK45, HK45 Tactical Magazine Housing - 10 Round
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    HK45, HK45 Tactical Magazine Housing - 10 Round

    H&K Heckler & Koch

    $34.95
    HK45 Magazine Housing For 10 Round Mag - Mag Body Only Brand new factory German manufacture. Compatible With: HK45, HK45 Tactical Please Note: This is not the same as the USP45 mag body.
    $34.95
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  • Out Of Stock
    New - MM HK 21 (7.62x51/.308) Belt Box Adapter - HKP-01844 HK 21 Ammunition Belt Box Adapter

    HK 21 Ammunition Belt Box Adapter

    Michaels Machines

    $274.95
    Belt Box Adapter A new custom-made adapter - allows you to use HK German factory HK21E belt boxes on the HK21 older style or original style belt feds. It is a drop-in design that will enable easy and quick use of the superior HK21E belt boxes...
    $274.95
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  • On Sale
    New - KCI Glock 50-Round 9mm Drum Magazine - Case of 20 - HKP-21888 KCI Glock 50-Round  9mm Drum Magazine - Case of 20
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    KCI Glock 50-Round 9mm Drum Magazine - Case of 20

    Now: $374.96
    Was: $799.95
    KCI Glock 50-Round 9mm Drum Magazine - Black - Case of 20 CLEARANCE ITEMS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL CLEARANCE SALES ARE FINAL. Features: Capacity: 50 Rounds Caliber: 9mm Construction:...
    Now: $374.96
    Was: $799.95
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    Now: $374.96
    Was: $799.95
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