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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On Sale
HK MP5 Magazine Spring - .40 S&W, 10mm - 30 Round
HKP HK Parts
Now: $3.95Was: $4.95HKP MP5 40/10 30 Round Magazine SpringHKP-16509Now: $3.95Was: $4.95 -
Out Of Stock
HK MP5, MP5K, SP5, SP5K Magazine Loader
B&T Brugger & Thomet
$24.00B&T Brugger and Thomet Magazine Loader for HK MP5, MP5K and HK SP5, HK SP5K The world’s fastest magazine loader. The B&T magazine loader loads your MP5 magazines directly from the ammo box tray into the magazine in a fraction of the time...HKP-21687$24.00 -
On Sale
HK USP Magazine Locking Plate - 9mm, .40 S&W - High Capacity
H&K Heckler & Koch
Now: $5.95Was: $6.95Heckler and Koch High Capacity Magazine Locking Plate for HK USP 9mm and .40 S&W Compatible With: USP9 USP40HKP-02165Now: $5.95Was: $6.95 -
On Sale
HK MP5 Recoil Spring - Enhanced
HKP HK Parts
Now: $14.95Was: $16.95HKP HK MP5 Enhanced Recoil Spring The HK Parts enhanced recoil spring offers a 5% increase in strength over the factory MP5 spring. Ideal for high round count firearms, suppressed setups, or simply to improve longevity. Won't fit F style recoil rods or...HKP-22209Now: $14.95Was: $16.95 -
On Sale
HK45 Magazine with Extension - Enhanced - 15 Round
HKP HK Parts
$91.95 - $113.95HKP HK Parts 15 Round Enhanced Magazine for HK45 HK45 and HK45 tactical +5 enhanced magazine extension. Our enhanced magazine was made to emulate the same side and front grip section of the HK45 to add the appearance of an extended grip. Paired...HKP-21430-M$91.95 - $113.95 -
On Sale
HK VP9SK Magazine - 12 Round - Translucent
Elite Tactical Systems
Now: $12.95Was: $16.99Elite Tactical Systems 9mm 30 Round Magazine HK VP9SK Features: Extended 12-round capacity Base plates interchangeable with ETS line of 9mm double stack magazines. Due to the wide variety of extensions for Glock, our mag base is designed to be...HKP-19198Now: $12.95Was: $16.99 -
HK91, G3 Magazine Clamp
H&K Heckler & Koch
$149.95New HK German Magazine Clamp for all HK .308 Magazines New German HK G3 & HK 91 Magazine Clamp fits all HK G3 & HK 91 & PTR 91 steel or aluminum magazines. Clamps HK magazines together for tactical environments. Please Note: This part is no...HKP-00219$149.95 -
On Sale
HK91, G3 20 Round Magazine - Steel - Refinished
H&K Heckler & Koch
Now: $52.95Was: $57.95HK 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...HKP-21587Now: $52.95Was: $57.95 -
Out Of Stock
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Subsonic - Speak No Evil Monkey
Zenith
$43.95Zenith 30 Round HK MP5 Monkey Subsonic 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-20916$43.95 -
On Sale
HK45, HK45T Magazine - .45 ACP - 13 Round - Red
HKP HK Parts
Now: $80.95Was: $89.9513 Round HK 45/45 Tactical .45 ACP Magazine - Red HK45 & HK45 Tactical +3 magazine extension coupled with a new HK German 10 round HK45 magazine. Each unit is then fully assembled as a 13 round HK45, HK45 Tactical magazine. Ideal for concealed carry,...HKP-18386Now: $80.95Was: $89.95 -
On Sale
HK MP5 Magazine Clamp - .40 S&W, 10mm
H&K Heckler & Koch
Now: $116.95Was: $129.95H&K Heckler and Koch New HK German Magazine Clamp for HK MP5 .40 S&W, 10mm, .357 SIG Fits all MP5 40,10 Magazines. Holds two magazines together for immediate access.HKP-00431Now: $116.95Was: $129.95 -
On Sale
HK CC9 Magazine Floorplate - 9mm - 12 Round
H&K Heckler & Koch
Now: $4.95Was: $5.95H&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 *These are NOT compatible with HK CC9 10...HKP-22148Now: $4.95Was: $5.95