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
HK45 +5 Magazine Extension Kit
HKP HK Parts
Now: $51.96Was: $64.95HKP HK45 +5 Magazine Extension Kit HK Parts magazine extension +5 kit adds 5 additional rounds to the HK45 magazine with the simple swap of the floor plate & high-reliability mag spring. HKP highly recommends using a magazine loader when...Now: $51.96Was: $64.95 -
On Sale
HK USP Extended Floorplate - .45 ACP - 12 Round
H&K Heckler & Koch
Now: $9.45Was: $10.50HK USP 45 12 Round Magazine Floor Plate - Extended A great spare to have on hand as these are prone to breakage if mags are dropped on hard surfaces. Compatible With: All HK USP 45 full size & USP 45 Tactical 12 round magazines.Now: $9.45Was: $10.50 -
On Sale
HK45 Magazine - 17 Round
HKP HK Parts / Heckler & Koch
Now: $107.95Was: $119.95HKP - 17 Round HK45 Magazine HK45 & HK45 tactical +7 magazine extension coupled with a new HK German 10 round HK45 magazine. Each unit is then fully assembled as a 17 round HK45, HK45 tactical magazine. Ideal for competition shooters that would like...Now: $107.95Was: $119.95 -
On Sale
HK45C, USPC Floorplate - 8 Round
H&K Heckler & Koch
Now: $58.46Was: $64.95H&K 8 Round HK USPC/45C .45 ACP Floorplate Brand new German HK manufacture. Compatible With: HK45 Compact, HK45 Tactical HK USP Compact 45, HK USPC TacticalNow: $58.46Was: $64.95 -
On Sale
HK416, MR556 Magazine - 20 Round
H&K Heckler & Koch
Now: $67.45Was: $74.95H&K 20 Round HK MR556 & 416 5.56/.223 Magazine New HK416 and MR556 Factory 20 Round Steel Maritime Coated Magazine. Will fit and work in all AR-15/M16 weapons. Perfect for those who need a lower profile magazine or who will be doing prone or...Now: $67.45Was: $74.95 -
On Sale
HK MP5, MP5K Magazine - 20 Round
Mora Arms
Now: $26.95Was: $29.95Mora Arms HK MP5, MP5K Magazine - 20 Round 20-round curved steel magazine for MP5 platforms. Compatible With: HK MP5, SP5 HK MP5K, SP5K HK SP89 HK 94 Clones and Custom BuildsNow: $26.95Was: $29.95 -
Out Of StockOn Sale
HK91, G3, PSG1, HK11 Magazine - 50 Round Drum
HKP HK Parts
Now: $287.96Was: $359.95HKP 50 Round Drum HK91, G3, PSG1/MSG90, HK11 - 7.62x51/.308 Modeled after the discontinued HK G8 50 round drum, the HK Parts drum steps in where the original left off. Each drum is crafted in the US from billet aluminum with aluminum and steel...Now: $287.96Was: $359.95 -
On Sale
HK VP9, VP40, USP Series, P Series Magazine Spring - 10 Round
H&K Heckler & Koch
Now: $6.25Was: $6.95New German HK Magazine Spring For 10 Round Magazines A must-have part as magazine springs are high wear and a common replacement item. Compatible With: HK USP 9mm HK USP 40 S&W HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK...Now: $6.25Was: $6.95 -
On Sale
HK 10 Round HK Mark 23/SOCOM .45 ACP Magazine
H&K Heckler & Koch
Now: $53.10Was: $59.00HK Mark23 SOCOM 10 Round Magazine Fits all HK Mark 23 and or Socom pistols.Now: $53.10Was: $59.00 -
On Sale
GSG5, SIG Magazine Spring - Kimber - 1911 .22LR conversions
GSG German Sports Guns
Now: $1.49Was: $3.95GSG/Sig Sauer/Kimber Magazine Spring German-made spare magazine spring for your 10-round 1911 magazine. Compatible With: GSG5 1911 SIG Kimber & many other guns that use this style of magazine for the 1911 .22 conversions.Now: $1.49Was: $3.95 -
On Sale
HK MP5 Magazine - 30 Round - LEO Marked
Zenith
Now: $47.66Was: $52.95Zenith 30 Round HK MP5 Magazine - - LEO Marked Replica LEO laser markings that closely resemble those found on factory magazines. These markings are expertly lasered onto Zenith magazines, successfully emulating the sought-after LEO markings of authentic...Now: $47.66Was: $52.95 -
HKP +2 HK 45C Finger Rest Magazine Extension
HKP HK Parts
$29.95HK45C 8 Round Magazine +2 Magazine Extension/Finger Rest All of the HK .45 cal mags will soon have a variety of mag extensions! More to come. HK45C 8 round +2 mag extensions. Replaces the floorplate for a +2 round addition for a total of 10 rounds in the...$29.95