Labor Day Sale
The HK Parts Labor Day Sale is live. Save up to 20% on select HK firearm parts, magazines, accessories, upgrades, and products from top brands. Get free shipping on qualifying orders of $250 or more. Limited quantities are available.
Free shipping applies to qualifying orders with a subtotal of $250 or more. All orders receiving free shipping will be shipped via USPS Standard. Exclusions may apply.
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On Sale
HK MP5, SP5 3-Lug Faux Suppressor - Early MP5SD Style
MFI
Now: $151.16Was: $167.95HK MP5, SP5 3-Lug Faux Suppressor - Early classic SD Style MFI replicates the classic appearance of an early MP5SD suppressor. This new design enhances the authenticity of your build for those who...HKP-22439Now: $151.16Was: $167.95 -
On Sale
HK91, G3, FMP Locking Piece - USED
H&K Heckler & Koch
Now: $6.70Was: $14.95Heckler and Koch Locking Piece for HK FMP HK91 and G3 - USED SOLD INDIVIDUALLY. USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOHKP-16712-USEDNow: $6.70Was: $14.95 -
On Sale
Pistol Flash Hider - 9mm - 4 Prong - Threaded 1/2x28 - BLEMISHED
USA
Now: $40.46Was: $74.95HK (9mm) 4 Prong Pistol Flash Hider - Threaded 1/2x28 - BLEMISHED VARYING CONDITION SHOWN IN PHOTOS - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART ISHKP-01965-BNow: $40.46Was: $74.95 -
On Sale
Century Arms AP51 Fixed Stock Backplate
HKP HK Parts / Heckler & Koch
Now: $80.96Was: $89.95H&K/HKP Century Arms AP51 Fixed Stock Backplate HKP's drop-in replacement backplate and recoil rod is expertly modified to fit the Century Arms AP51. Crafted to the precise length for optimal...HKP-22188Now: $80.96Was: $89.95 -
On Sale
HK MP5 Trigger Pack - Single Stage Semi-Auto - SEF
HKP HK Parts
Now: $286.84Was: $449.95HKP/H&K MP5 9mm Semi-Auto SEF Single Stage Trigger Pack This trigger pack starts as a factory F/A trigger pack before being converted into a semi-auto trigger pack and receiving single-stage trigger...HKP-21083Now: $286.84Was: $449.95 -
On Sale
Flash Hider .22 Cal - Titanium - Silver
Tactical Precision MFG
Now: $33.71Was: $88.99TPM Tactical Precision MFG Flash Hider .22 LR - Titanium This titanium tri-port muzzle brake reduces recoil, muzzle rise, and hides the flash. Dust does not kick up due to three offset front ports...HKP-20778Now: $33.71Was: $88.99 -
On Sale
HK SP5 End Cap with Buffer - QD
HKP HK Parts
Now: $44.96Was: $99.95HKP HK Parts Quick Detach End Cap for HK SP5 With this SP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip top condition for...HKP-20757Now: $44.96Was: $99.95 -
On Sale
HK UMP .40 Semi-Auto Bolt Group - Complete
Michaels Machines
Now: $414.34Was: $649.95Michaels Machines HK UMP .40 Semi-Auto Bolt Group - Complete MM’s UMP tungsten filled UMP .40 bolt carrier. Heat treated, parkarized and polished for the best look and function possible, as an added...HKP-20626Now: $414.34Was: $649.95 -
On Sale
HK UMP .45 Conversion Kit
Now: $989.96Was: $1,099.95H&K HK UMP .45 Conversion Kit This kit optimizes the UMP platform by allowing the user swap between calibers in approximately 5 minutes. The Michael's machine semi-auto bolt pairs perfectly with the...HKP-20623Now: $989.96Was: $1,099.95 -
On Sale
HK Single Point Leather Sling - Brown
HKP HK Parts
Now: $44.96Was: $49.95Single Point Leather Sling - Brown Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering...HKP-20161Now: $44.96Was: $49.95 -
On Sale
HK MR556 Rail System - 10" - M-LOK
KDG Kinetic Development Group
Now: $209.96Was: $374.95KDG HK MR556 10" M-LOK Rail System Direct-mount rail system designed to replace the factory HK MR556 handguard. Features a continuous monolithic Picatinny rail at the 12 o’clock position and M-LOK...HKP-19246Now: $209.96Was: $374.95 -
On Sale
HK MP5K, SP5K, SP89 Helmet Stock - Folding and Adjustable
B&T Brugger & Thomet
Now: $265.97Was: $379.95B&T HK MP5K, SP5K, SP89 Helmet Stock - Folding and Adjustable This Swiss-made folding helmet stock offers a compact, military-grade solution for MP5K-pattern firearms. Built from durable polymer and...HKP-18101Now: $265.97Was: $379.95