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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HK USP Magazine Locking Plate - 9mm - 10 Round
H&K Heckler & Koch
$5.95Heckler and Koch Magazine Locking Plate For USP 9mm Full Size Magazines Replacement magazine locking plate designed for USP 9mm full size magazines. Intended for maintenance or repair of compatible 10-round magazine assemblies. Compatible With: USP9 10...HKP-01597$5.95 -
Out Of Stock
HK91, G3 Magazine Loader
H&K Heckler & Koch
$0.00HK Factory Loader for HK 91/G3 Magazines Compatible With: HK 91 magazines HK G3 magazines PTR-91 Magazines HK PSG1 magazines HK MSG-90 magazines HK 90 series 308 magazinesHKP-00221$0.00 -
Out Of Stock
HK MP5 Magazine Floorplate - .40 S&W, 10mm
H&K Heckler & Koch
$14.95H&K Heckler and Koch New HK German Magazine Floor Plate HK MP5 40,10HKP-01269$14.95 -
On Sale
HK MP5, MP5K, SP89 MP5 Magazine - 9mm - 30 Round - Turkish - BLEMISHED
Other
Now: $23.95Was: $34.95HK MP5, MP5K, SP89 MP5 Magazine - 9mm - 30 Round - Turkish - BLEMISHED INSTALLATION MARKS. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. These newly imported...HKP-22274-BNow: $23.95Was: $34.95 -
Out Of StockOn Sale
HK VP9A1 K Magazine - 10 Round - BLEMISHED
H&K Heckler & Koch
Now: $39.95Was: $59.95HK VP9A1 K Magazine - 10 Round - BLEMISHED INSTALLATION MARKS COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Factory 10-round magazine for the VP9A1 K...HKP-22301-BNow: $39.95Was: $59.95 -
On Sale
HK CC9 Magazine Spring - 10 Round
H&K Heckler & Koch
Now: $4.95Was: $5.95Heckler and Koch 10-Round Magazine Spring for HK CC9 Genuine 10-round HK CC9 magazine spring, made from steel for reliable feeding and long service life. Compatible With: CC9HKP-22151Now: $4.95Was: $5.95 -
On Sale
HK USP/T 9mm +7 Magazine Extension - BLEMISHED
HKP HK Parts
Now: $48.95Was: $69.95HKP HK USP/T 9mm +7 Magazine Extension - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Easy to install. Simply add the mag extension to your existing...HKP-21841-BL-BNow: $48.95Was: $69.95 -
On Sale
HK VP9SK, P30SK Magazine Extension - Pinky Rest - +2 - Red - BLEMISHED
HKP HK Parts
Now: $14.95Was: $24.95HKP +2 HK VP9SK/P30SK Magazine Extension w/ Pinky Rest - 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. The mag extension also provides a pinky...HKP-21076-RE-BNow: $14.95Was: $24.95 -
On Sale
HK USP Full Size Magazine Floorplate - .40 S&W - 10 Round - Standard
H&K Heckler & Koch
Now: $7.95Was: $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 MagazineHKP-01439Now: $7.95Was: $8.95 -
On Sale
HK USC Magazine - 5 Round - .45 ACP
H&K Heckler & Koch
Now: $52.95Was: $57.95HK Heckler and Koch 5 Round .45 ACP Magazine for HK USC 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 carbinesHKP-20041Now: $52.95Was: $57.95 -
On Sale
HK Mark 23 Lockout Device Set
H&K Heckler & Koch
Now: $26.95Was: $29.95HK Mark 23/SOCOM Lockout Device Set Includes: Lockout key Lockout deviceHKP-01547Now: $26.95Was: $29.95 -
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...HKP-01500Now: $9.95Was: $18.95