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 UMP Caliber Conversion to .40 S&W Kit - 7.87" Barrel - 30 Round Magazine
Michaels Machines
Now: $637.47Was: $999.95HK UMP 40 Caliber Conversion Kit With this UMP Conversion kit, UMP .45 sub guns can be converted to .40 caliber. Machined bolt carriers are available for USC/UMP conversion sub guns. This is a simple...HKP-18754Now: $637.47Was: $999.95 -
On Sale
HK51, PTR PDW Stock - AR15 Style
PTR
Now: $216.72Was: $339.95HK51, PTR PDW Magpul Stock - AR-15 Style AR15/M16 to HK 90 series stock adapter for the HK51 and PTR PDW. This is a perfect compliment for those that want to use the popular Magpul Moe stock. Each...HKP-15753Now: $216.72Was: $339.95 -
On Sale
HK MP5, HK94, HK33, HK53, HK93 Stock - AR15 Style
HKP HK Parts
Now: $126.19Was: $197.95HKP HK Parts AR-15 Style Magpul Stock for HK33, HK53, and HK93 - 5.56 / .223 US manufactured AR15 to HK33, HK53, HK93 series stock assembly with Magpul MOE stock. Each unit comes complete and ready...HKP-16271Now: $126.19Was: $197.95 -
On Sale
Century Arms AP5-P, AP5-M Handguard with Handstop - BLEMISHED
MKE
Now: $20.21Was: $34.95MKE AP5-P/M Handguard with Hand Stop - BLEMISHED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN...HKP-22221-BNow: $20.21Was: $34.95 -
On Sale
HK USP StippleTape Grip Wrap - 9mm / .40 S&W
Volker Precision
Now: $18.00Was: $19.99HK USP StippleTape Grip Wrap - 9mm / .40 S&W - Volker Precision StippleTape textured rubber grips for HK USP. The wrap fits neatly withing the existing texture recess on both sides of the grip. Made...HKP-22502Now: $18.00Was: $19.99 -
On Sale
HK416 A1, MR556 A1 Barrel Nut
Nefarious Arms
Now: $44.96Was: $49.95Nefarious Arms HK MR556 A1/416 A1 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option. Meticulously crafted...HKP-22279Now: $44.96Was: $49.95 -
On Sale
HK416, MR556 Barrel - 5.56 - 9" - Threaded 1/2"x28 - PDW - A1 and A3
Nefarious Arms
Now: $535.46Was: $594.95Nefarious Arms HK 416C 9" Barrel The Nefarious Arms HK416/MR556 Barrel is built for shooters who demand precision, durability, and consistent performance. Made in the USA from 4150 chromoly steel,...HKP-21906Now: $535.46Was: $594.95 -
On Sale
HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A5 Profile
Nefarious Arms
Now: $535.46Was: $594.95Nefarious Arms HK MR556416 10.4" A5 Barrel An expertly crafted 10.4" barrel designed for the HK MR556 and 416 platforms. Featuring the A5 profile, this barrel balances durability and weight, making...HKP-21873Now: $535.46Was: $594.95 -
On Sale
HK G3K, HK33 Flash Hider - 4 Prong Enclosed
RCM
Now: $169.16Was: $187.95RCM HK G3K & HK33 Flash Hider - 4 Prong - Enclosed End The RCM G3K flash hider can be welded to a 12.69" barrel to achieve a non-SBR OAL of 16 plus inches or add to any other configuration. Made in...HKP-21598Now: $169.16Was: $187.95 -
On Sale
HK MP5 Trigger Pack - Single Stage Semi-Auto - Ambi
HKP HK Parts
Now: $293.22Was: $459.95HKP/H&K MP5 9mm Single Stage Semi-Auto Ambidextrous 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...HKP-21483Now: $293.22Was: $459.95 -
On Sale
.30 Cal Muzzle Brake - 3 Port - Crush Washer
Tactical Precision MFG
Now: $35.96Was: $72.99TPM Tactical Precision MFG 3 Port .30 Cal Muzzle Brake with Crush Washer This 3 port muzzle brake is made for any 5/8x24 application and comes with a crush washer. Specifications: DimensiHKP-20900Now: $35.96Was: $72.99 -
On Sale
HK VP9 Reflex Mini Sight 2.0 and Optic Plate - 8MOA - Glass Lens - Shield Sights
HKP HK Parts / Shield Sights
Now: $386.96Was: $429.95Shield Sights Reflex Mini Sight 2.0 and Optic Plate Bundle Includes: Shield Reflex Mini Sight 2.0, 8MOA, glass lens VP9 aluminum optic plateHKP-20571Now: $386.96Was: $429.95