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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Out Of Stock
HK MP5 Magazine Floorplate - 10mm / .40 S&W
H&K Heckler & Koch
$14.95New HK German MP5/40 Magazine Floor Plate$14.95 -
HK CC9 Magazine +5 Extension Kit - 9mm
HKP HK Parts
$59.95HKP HK CC9 +5 Magazine Extension US-made +5 magazine extension for the HK CC9. This low-profile base pad increases a standard 15-round CC9 magazine to 20 rounds of 9mm. Machined from aircraft-grade hard coat anodized aluminum with steel hardware...$59.95 -
HK CC9 Magazine Locking Plate - 12 Round
H&K Heckler & Koch
$5.95H&K CC9 Magazine Locking Plate - 12 Round Locking plate for H&K CC9 12-round magazine. Secures the floor plate and internal components to the magazine body. German-made by H&K. Compatible With: HK CC9$5.95 -
HK MG3 50 Round Assault Drum
H&K Heckler & Koch
$27.95H&K MG3 50 Round Assault Drum H&K manufactured 50-round drum for the MG3. Unissued, but may have light marks or dust from long-term storage. Clips onto MG3 feed trays. With minor modifications, these can be run on HK21, HK21E, and HK51B setups...$27.95 -
HK USP Full Size Magazine Floorplate - .40 S&W - 10 Round - Standard
H&K Heckler & Koch
$8.9510 Round HK USP .40 S&W Full Size Standard Magzine Floor Plate Compatible With: HK USP 40 Full Size S&W 10 Round Magazine$8.95 -
HK 5 Round HK USC .45 ACP Magazine
H&K Heckler & Koch
$57.95HK German Factory 5 Round USC .45 Magazine This is the only magazine that HK offers for the HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible With: All HK USC carbines$57.95 -
HK G36 (5.56/.223) 10 Round Factory Magazine - FDE
H&K Heckler & Koch
$87.95HK G36 10 Round Magazine in Flat Dark Earth (FDE) Compatible With: G36 G36K G36C Double Stack Capacity Magwell Converted SL8's Specifications: Capacity: 10-rounds Condition: New, rare find Manufacturer: HK Germany$87.95 -
HK UMP Magazine - .40 ACP - 30 Round - LEO Marked
H&K Heckler & Koch
$99.95Rare Surplus 30 Round Magazine - LEO Marked - Windowless - UMP .40 S/W Rare UMP .40 windowless magazine with LEO markings. Highly unique magazines as these were "early production" magazines that were used before they switched over to the windowed UMP...$99.95 -
On Sale
HK USP Compact Lockout Device
H&K Heckler & Koch
Now: $9.95Was: $18.95HK USPC Lockout Device Easily installs to lock out the magazine. Used to comply with certain state laws and as an added safety feature. This lockout device can be retrofitted to older-style USPC's that do not have the lockout device installed. Compatible...Now: $9.95Was: $18.95 -
On Sale
HK CC9 Magazine - Extended Pinky Rest - 15 Round - Black Extension with Red Follower - BLEMISHED
HKP HK Parts
Now: $56.95Was: $79.95HK CC9 Magazine - Extended Pinky Rest - 15 Round - Black Extension with Red Follower - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Factory German...Now: $56.95Was: $79.95 -
On Sale
HK VP9SK, P30SK Magazine Pinky Rest - Black - BLEMISHED
HKP HK Parts
Now: $16.95Was: $22.95HK VP9SK, P30SK Magazine Pinky Rest - Black - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This machined floorplate allows the user to quickly swap...Now: $16.95Was: $22.95 -
HK CC9 Magazine Body - 9mm - 12 Round
H&K Heckler & Koch
$5.95Heckler and Koch 12-Round Magazine Body for HK CC9 OEM 10-round magazine body for the HK CC9, made in Germany by Heckler & Koch and ideal as a factory-spec replacement. Compatible With: CC9$5.95