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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  • New - HKP HK UMP (.40 S&W) 15 Round Magazine - HKP-17584 HK UMP Magazine - .40 S&W - 15 Round
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    HK UMP Magazine - .40 S&W - 15 Round

    HKP HK Parts

    $49.95
    UMP, SMG .40 Cal 15 Round Magazine - US Each ultra compact 15 round magazine will fit all HK UMP .40 caliber carbines, SMG's as well as the USC-UMP .40 caliberP conversions. Each magazine features, steel feed lips, enhanced polymer construction and all...
    HKP-17584
    $49.95
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    $49.95
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  • New - Lancer 30 Round AR-15 Magazine - HKP-21188 Lancer 30 Round AR-15 Magazine - Smoke
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    Lancer 30 Round AR-15 Magazine - Smoke

    Lancer

    $29.95
    Lancer 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
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  • HK91, G3, MSG90 10 Round Magazine - Alloy H&K Heckler & Koch HKP-22418 HK91, G3, MSG90 10 Round Magazine - Alloy H&K Heckler & Koch HKP-22418
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    HK91, G3, PTR Magazine - 10 Round - Alloy

    H&K Heckler & Koch

    $37.95
    H&K HK91, G3, MSG90 10 Round Magazine - Alloy This part counts as 1 US-made part for 922r compliance for HK rifles. Manufactured by HK and converted to ten round capacity in the United States using a US-made floorplate. Compatible With: HK91 HK...
    HKP-22418
    $37.95
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  • New - H&K HK 417/MR762 Magazine Catch Retainer Ring - HKP-16521 HK417, MR762 Magazine Catch Retainer Ring
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    HK417, MR762 Magazine Catch Retainer Ring

    H&K Heckler & Koch

    $10.95
    H&K HK 417/MR762 Magazine Catch Retainer Ring   Compatible With: HK 417 HK MR762
    HKP-16521
    $10.95
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  • On Sale
    Refurbished - HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished - BLEMISHED - HKP-21922-B HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished - BLEMISHED
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    HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished - BLEMISHED

    H&K Heckler & Koch

    Now: $44.95
    Was: $84.95
    HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished - BLEMISHED MAGAZINE BODIES HAVE PITTING - CONDITION MAY VARY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...
    HKP-21922-B
    Now: $44.95
    Was: $84.95
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    Now: $44.95
    Was: $84.95
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  • New - B&T Magazine Slim Bumper Upgrade Kit - HKP-21712 B&T APC9/TP9/SPC9 Magazine Slim Bumper Upgrade Kit
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    B&T APC9/TP9/SPC9 Magazine Slim Bumper Upgrade Kit

    B&T Brugger & Thomet

    $20.00
    B&T Magazine Slim Bumper Upgrade Kit This magazine upgrade kit enhances the durability of your 9mm magazines, providing extra protection for the base. The kit features a two-piece base plate that reinforces the bottom of the magazine, covered with a...
    HKP-21712
    $20.00
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    $20.00
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  • On Sale
    New - HKP HK 416 .22LR Dual Magazine Clamp - Black - BLEMISHED - HKP-21607-BL-B HK416 .22LR Dual Magazine Clamp - Black - BLEMISHED
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    HK416 .22LR Dual Magazine Clamp - Black - BLEMISHED

    HKP HK Parts

    Now: $28.95
    Was: $49.95
    HKP HK416 .22LR Dual Magazine Clamp - Black - BLEMISHED MACHINE FLAWS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Securely hold two HK 416 .22LR magazines...
    HKP-21607-BL-B
    Now: $28.95
    Was: $49.95
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    Now: $28.95
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  • New - HKP HK USP 9mm +10 Magazine Extension - HKP-21382-M HK USP 9mm +10 Magazine Extension
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    HK USP 9mm +10 Magazine Extension

    HKP HK Parts

    $69.95
    Magazine Extension - +10 - HK USP 9mm  Easy to install. Simply add the mag extension to your existing mag body and follower. No gunsmithing needed. Made 100% in the USA out of aircraft-grade, hard-coat anodized aluminum with steel hardware. Ultra...
    HKP-21382-M
    $69.95
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  • New - Zenith 30 Round HK MP5 Supersonic Labeled Magazine - HKP-20830 HK MP5 Magazine - Supersonic Labeled - 30 Round
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    HK MP5 Magazine - Supersonic Labeled - 30 Round

    Zenith

    $43.95
    Zenith 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
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  • New - B&T 19 Round BT USW-A1 9mm Magazine - Black - HKP-18354 B&T USW-A1 Magazine - 9mm - 19 Round
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    B&T USW-A1 Magazine - 9mm - 19 Round

    B&T Brugger & Thomet

    $55.00
    B&T 19 Round BT USW-A1 9mm Magazine New Swiss B&T manufactured 19 Round magazine Compatible With: B&T USW-A1 9mm Specifications: Factory new condition 19-round capacity 9mm
    HKP-18354
    $55.00
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    $55.00
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  • HKP HK MP5, MP5K Dual 9mm Magazine Clamp Bundle - Turkish Contract HKP HK MP5, MP5K Dual 9mm Magazine Clamp Bundle - Turkish Contract
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    HKP HK MP5, MP5K Dual 9mm Magazine Clamp Bundle - Turkish Contract

    HKP HK Parts

    $99.95
    HKP HK MP5, MP5K Dual 9mm Magazine Clamp Bundle - Turkish Contract HKP dual mag clamp with two Turkish contract 30 round 9mm MP5 magazines.  Ideal for faster mag swaps and having two types of ammo (subs vs supers or FMJ's vs JHP's) ready to load...
    HKP-22492
    $99.95
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    $99.95
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  • HK CC9 Magazine Floorplate - 9mm - 12 Round HK CC9 Magazine Floorplate - 9mm - 12 Round
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    HK CC9 Magazine Floorplate - 9mm - 12 Round

    H&K Heckler & Koch

    $5.95
    H&K CC9 Magazine Floorplate - 12 Round Factory German HK magazine locking plate for use with the HK CC9 12 round magazine. Secures the extended baseplate to the magazine body. Compatible With: HK CC9
    HKP-22148
    $5.95
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    $5.95
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