HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
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On Sale
HK UMP40 Bolt Group - Semi-Auto - 40 S&W - USED
H&K Heckler & Koch
Now: $547.46Was: $949.95Heckler and Koch HK UMP40 Bolt Group - Semi-Auto - 40 S&W - USED ONLY 3 UNITS AVAILABLE - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Complete factory HK bolt group for semi-automatic UMP firearms...HKP-99388Now: $547.46Was: $949.95 -
On Sale
HK MP5 Bolt Head with Locking Piece - .40 S&W, 10mm - BLEMISHED
H&K Heckler & Koch
Now: $419.96Was: $749.95Heckler and Koch Bolt Head with Locking Piece for HK MP5 .40 S&W and 10mm - BLEMISHED ONLY 7 UNITS AVAILABLE - CONDITION MAY VARY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS...HKP-99369Now: $419.96Was: $749.95 -
HK MP5, MP5K Cleaning Brush Rod - 9mm
H&K Heckler & Koch
$294.95HK MP5 Cleaning Brush Rod Factory cleaning rod designed specifically for 9mm MP5 platforms. An essential tool for ensuring optimal function and accuracy. Compatible With: HK MP5, SP5HKP-22494$294.95Out Of StockOn Sale
HK UMP & B&T APC Folding Brace - BLEMISHED
SB Tactical
Now: $40.96Was: $79.95HK UMP & B&T APC Folding Brace - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED CRACKEDHKP-18258-BNow: $40.96Was: $79.95
HK416, MR556 A4 Hammer Washer
H&K Heckler & Koch
$58.95Heckler and Koch Hammer Washer for HK MR556 OEM hammer washer for HK MR556 and HK416 rifles. Factory-spec replacement washer for the hammer assembly, ideal for repairs, rebuilds, or returning rifles...HKP-22434$58.95
HK416, MR556 Pistol Grip - Walnut
JMK
$78.95JMK HK416, MR556 pistol grip - Walnut The pistol grip by JMK is made from CNC-machined black walnut. After machining, the grip is dyed to ensure a uniform color and is finished with a catalyzed satin...HKP-22400-M$78.95On Sale
HK417, MR762 Handguard - 15" - Tropentarn
H&K Heckler & Koch
Now: $439.95Was: $488.95Heckler and Koch HK MR762 A4 Complete Handguard - Tropentarn - 15" Factory HK handguard with a 12 o’clock Picatinny rail and M-LOK slots at 3, 6, and 9 o’clock for mounting optics and accessories...HKP-99326Now: $439.95Was: $488.95
HK21 Barrel - 17.7" - Threaded 15X1 - 7.62x51 / .308
Michaels Machines
$1,189.95MM HK21 Barrel - 17.7" - CHF Michael's Machines HK21 barrels are crafted in the US from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Barrels come stripped, requiring a flash...HKP-22332$1,189.95Out Of StockOn Sale
HK33K, HK53 Locking Piece #3 - 58 Degree - New Old Stock
H&K Heckler & Koch
Now: $1,449.95Was: $1,949.95Heckler and Koch HK53 Locking Piece #3 - 58 Degree - New Old Stock ONLY 2 UNITS AVAILABLE - AS PICTURED Priced forHKP-99315Now: $1,449.95Was: $1,949.95
HK MP5 Parts Kit - A3 Buttstock - 4 Position 3 Round Burst - .40 S&W, 10mm
H&K Heckler & Koch
$4,799.95H&K Heckler and Koch A3 4 Position 3 Round Burst Parts Kit for HK MP5 40,10 Genuine German HK MP5 .40 parts kits are becoming increasingly rare, and this setup is a prized find. Featuring the...HKP-22242$4,799.95On Sale
HK UMP, USC Bolt Carrier - Semi Auto - .45 ACP - BLEMISHED
USA
Now: $254.96Was: $399.95USA HK UMP/USC .45 Semi Auto Bolt Carrier - Complete - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...HKP-18588-BNow: $254.96Was: $399.95
HK91, G3 Bolt Carrier - Full Auto - SURPLUS
H&K Heckler & Koch
$149.95Heckler and Koch Factory F/A Bolt Carrier for HK G3 and HK91 - SURPLUS UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Surplus factory H&K full-auto steel bolt carrier for the G3...HKP-22161$149.95