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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Magpul RSA - Rail Sling Attachment
Magpul
$29.95Magpul RSA - Rail Sling Attachment Attaches to Picatinny rails for an additional point of attachment for slings.HKP-02423$29.95 -
HK MR556 A4 Upper Receiver Kit - 16.5″ - 5.56 - M-LOK
H&K Heckler & Koch
$1,939.00H&K MR556 A4 16.5″ 5.56 M-LOK Upper Receiver Kit This kit includes a complete upper receiver/barrel assembly, allowing Mil-Spec 5.56mm AR-style rifles to be retrofitted to HK’s piston and pusher rod system. This system utilizes a piston...HKP-21909$1,939.00 -
HK MP5K Brace or Stock Adapter - Folding
HKP HK Parts / SB Tactical
$79.99SB Tactical HK MP5K Folding Brace/Stock Adapter Factory SB Tactical adapter for folding pistol brace. Aluminum with hard coat anodize for the ultimate finish. Features: Seamless styling adds elegance & operator utility Quick and easy H buffer...HKP-21413$79.99 -
$3.95 -
HK SL8, 36 Extended Bottom Rail Kit
H&K Heckler & Koch
$99.95H&K HK SL8, HK G36 Extended Bottom Rail Kit This rail is the factory correct HK German manufactured bottom rail for the G36 or SL8 rifle. This allows the longest rail on the bottom of the polymer forearm. 9.25" in length overall. Comes with all...HKP-16549$99.95 -
HK417, MR762, MR308 Trigger - Geissele
Geissele
$479.95HK MR 762 Trigger- Geissele The HK MR762 trigger is similar to our SSA with a 4.5 total pull weight. It can be used in both the HK 762 and semi-auto HK 417's. Please note: After installing the MR762 trigger you must cock the hammer in order to engage the...HKP-16463$479.95 -
HK G36, SL8 Extractor
H&K Heckler & Koch
$79.95G36 & HK SL8 German Extractor For Bolt Head New HK German. This is a great item to keep as a spare. Compatible With: All G36 Variants SL8-1, SL8-6HKP-00287$79.95 -
HK91, G3 Bolt Head Complete - US Made
$149.95Bolt Head - Complete This item is a complete bolt head using a combination of new HK German and New US-made parts. This part counts as 1 US-made compliant part for the 922r compliance. Compatible With: HK 91 HK G3 PTR-91 SAR3/8 Other HK .308 Clones or...HKP-00839$149.95 -
HK MP5SD Parts Kit - Pistol Build - 9mm - Receiver Flat and Weldment Set
HKP HK Parts
$2,249.95HKP HK MP5SD Kit - Pistol Build - 9mm MP5SD 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts. This is the first time that these iconic kits have been...HKP-18052$2,249.95 -
HK94, HK93 Semi Grip Frame SEF - Metal
HKP HK Parts
$189.95HK MP5,94, 33,93 Style Metal Grip Frame For Semi Auto Shelves Each German HK housing started out as a factory HK German select fire metal housing. Each housing was modified by welding in a factory correct semi auto shelf, clipped from a double tang...HKP-16470$189.95 -
On Sale
HK G36, G36C, G36K 30 Round Magazine - OD Green - BLEMISHED
HKP HK Parts
Now: $28.95Was: $38.95HKP HK G36 30 Round Magazine - OD Green - BLEMISHED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY MOLD POLYMER IMPERFECTION MARKINGS ARE VISIBLE COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL...HKP-22525-BNow: $28.95Was: $38.95 -
HK91, G3, PTR Magazine - 10 Round - Alloy
H&K Heckler & Koch
$37.95H&K HK91, G3, MSG90 10 Round Magazine - Alloy This part counts as 1 US-made part for 922r compliance for HK rifles. Manufactured by HK and converted to ten round capacity in the United States using a US-made floorplate. Compatible With: HK91 HK...HKP-22418$37.95