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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HK21 Drum Hanger and100rd Drum
HKP HK Parts
$435.95HKP HK21 Drum Hanger with H&K 100 Round Drum Complete your HK21 or FMP21 build with our HKP drum hanger and H&K original 100-round drum. Our HK21 drum hanger is precisley machined from 4140 billet steel, heat-treated to 50 Rockwell, and...HKP-21633$435.95 -
HK UMP Magazine Floorplate
HKP HK Parts
$7.95HKP HK UMP Floorplate Compatible With: UMP .45 UMP .40 UMP 9mm These can become cracked or broken with use or drops onto hard surfaces. Made in the USA and counts as 1 US compliant part.HKP-17161$7.95 -
HK MP5 Magazine Replacement Parts Kit - 30 Round - 9mm
MKE
$23.95MKE HK MP5 9mm 30 Round Magazine Replacement Parts Kit Replacement magazine parts kit for HK MP5 9mm firearms. Made in Turkey and designed to match factory MP5 specifications. Includes: 30 round magazine spring MP5 magazine follower MP5 magazine floor...HKP-99342$23.95 -
MP9, TP9, APC9, GHM9, SPC9 Magazine Spring - 9mm - 30 Round
B&T Brugger & Thomet
$6.95B&T 30 Round 9mm Magazine Spring Factory B&T replacement magazine spring for 30 round 9mm magazines. Compatible With: MP9/TP9 APC9 GHM9 SPC9HKP-21758$6.95 -
HK MP5 Dual Magazine Clamp Conversion Screw - G3 to MP5 Mags
HKP HK Parts
$2.95HKP Dual HK MP5 Magazine Clamp Conversion Screw This screw converts a HK91, G3, PTR dual magazine clamp (HKP-19634) into the correct length for use with an MP5 magazine. Includes: 1 screwHKP-20318$2.95 -
HK 5.56 Magazine Assist - 3 Pack
Magpul
$9.95ORIGINAL MAGPUL® 5.56 NATO, 3 PACK When installed on the base of a 5.56x45 rifle magazine, the original Magpul provides improved speed and control during high stress, tactical magazine changes. Durable synthetic rubber loop with recessed rough...HKP-17320$9.95 -
HK CC9 Magazine Floorplate - 9mm - 12 Round
H&K Heckler & Koch
$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 CC9HKP-22148$5.95 -
B&T KH9 Covert 9mm "Slip-In" 25 Round Magazine - Coyote Tan
B&T Brugger & Thomet
$50.00B&T KH9 Covert 9mm "Slip-In" 25 Round Magazine - Coyote Tan Enhance your B&T KH9 Covert with this 25-round slip-in magazine, designed for smooth feeding. Featuring a slimline rubber bumper for added protection, this magazine ensures optimal...HKP-21717$50.00 -
On Sale
HKP +3 HK45 Tactical Magazine Extension - Red - BLEMISHED
HKP HK Parts
Now: $24.95Was: $49.95HKP +3 HK45 Tactical Magazine Extension - Red - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK45 & HK45 Tactical +3 magazine extension adds...HKP-18385-RE-BNow: $24.95Was: $49.95 -
On Sale
HK MP5 .22 Dual Magazine Clamp - Black - BLEMISHED
HKP HK Parts
Now: $18.95Was: $29.95HKP HK MP5 .22 Dual Magazine Clamp - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The MP5 .22 magazine grip or dual magazine clamp. Fits all...HKP-20856-BL-BNow: $18.95Was: $29.95 -
HK91, G3 Magazine - .308 - 10 Round - Used
H&K Heckler & Koch
$64.95H&K 10 Round HK 91, G3, PTR .308 Magazine - Used Each HK magazine is made by using a factory German HK 20 round mag that is then professionally converted to 10 rounds. Perfect for shooting bench or prone as the 20 round magazines are to long and get...HKP-19887$64.95 -
HK USPC, P2000 Magazine Body - .40 S&W - 10 Round
H&K Heckler & Koch
$24.95H&K 10 Round HK USPC/P2000 .40 S&W Magazine BodyHKP-02499$24.95