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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HK G36C, G36K Tri-Rail Set - Complete
UTG
$64.95UTG 1 Long and 2 Short Rail Rail Set for HK G36C, G36K, G36 .22LR Three-piece Picatinny rail set for G36-pattern handguards or forearms with built-in rail mounting points. Includes bottom, left, and right aluminum rails, along with mounting screws and...HKP-00272$64.95 -
Barrel Bore Cleaning Brush - 9mm / .357 SIG
H&K Heckler & Koch
$1.95HK 9mm / .357 SIG Barrel Bore Brush This brush is a must-have item to clean the barrel effectively, and it is compatible with all standard 8-32 threaded cleaning rods (universal/most common thread). We offer a large variety of long-lasting bore...HKP-02760$1.95 -
HK MP5, HK91, G3 Pistol Grip
AC-Unity
$9.95AC-Unity HK G3 Pistol Grip Beautifully designed and textured for a great feel and sure grip. It also goes correct for HK33 or MP5 style weapons using buttstocks mounted with steel backplates. It is made from an advanced polymer-resin/granulate that is...HKP-21629$9.95 -
HK416, MR556, G36, SL8 Piston Ring - Replacement Set of 3
H&K Heckler & Koch
$19.95HKP Gas Piston Ring Replacement Combo Set- 3 Rings The gas rings are prone to periodic breakage and wear and tear and require them to be replaced periodically. These are some of the most common breakage parts we see that need to be replaced on these...HKP-00048$19.95 -
HK USC (.45 ACP) 10 Round Magazine
H&K Heckler & Koch
$74.95HK German Factory 10 Round USC .45 Magazine This is the only magazine that HK offers for HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible with all HK USC Carbines.HKP-00811$74.95 -
On Sale
HK MP5SD Rubber Handguard - BLEMISHED
HKP HK Parts
Now: $64.95Was: $169.95HKP MP5SD Rubber Handguard - BLEMISHED THIS COSMETICALLY BLEMISHED ITEM IS FULLY FUNCTIONAL. THIS ITEM IS SOLD AS IS AND NOT ELIGIBLE FOR A RETURN. These handguards will have minor damages on the steel. They will be slightly bent on some areas but...HKP-17400-BNow: $64.95Was: $169.95 -
HK MP5, HK94 Folding Stock - UMP Style
B&T Brugger & Thomet
$279.95B&T MP5 & HK94 UMP Style Folding Stock New Swiss/German HK Made B&T Folding Stock for the MP5/ SP5 full size. These are hard to find and the real deal. 100% Swiss & German HK made. This is a military-grade stock. B&T Switzerland has...HKP-16928$279.95 -
HK MP5, SP5 Folding Brace
B&T Brugger & Thomet / SB Tactical
$279.95B&T MP5/SP5 Folding Brace - Swiss/US Factory Swiss B&T MP5, SP5 Folding Pistol Brace with the SB Tactical/B&T components assembled. A rare offering using the B&T Swiss manufactured folding polymer end cap with sling swivel slightly used...HKP-19353$279.95 -
HK91, G3 Rear Sight - Surplus
H&K Heckler & Koch
$14.95HK German G3, 91, PTR Rear Sight Assembly Good - Very Good HK German factory sight. We offer the finest used German HK sights at the BEST price in the country. Each German HK used sight was hand selected & picked from to be the finest examples of all...HKP-18092$14.95 -
HK MP5K/SP89/SP5K 9mm #28 Locking Piece
H&K Heckler & Koch
$199.99H&K MP5K/SP89/SP5K/SP5K PDW 9mm #28 Locking Piece This is the locking piece that is recommended when using a suppressor and 147-grain or heavier bullets. This will slow the rate of fire while suppressed to safe levels. This locking piece is 80...HKP-00918$199.99 -
HK416, HK417, MR556, MR762, G28 A5 Grip V2 - RAL8000
H&K Heckler & Koch
$44.95H&K HK MR556/MR762/416/417/G28 A5 Grip V2 - RAL 8000 Compatible With: HK MR556 HK 416/416-A5 HK MR762 HK 417/417-A2 HK M27 HK G28 AR-15, M4, & M16 Platforms Please Note: Color representation is based on Heckler & Koch's information...HKP-18467$44.95 -
HK416, MR556, G36, SL8 Piston Ring - Replacement Set of 3 - USA
HKP HK Parts
$8.95HK MR556, HK416 & G36, SL8 Gas Piston Ring Replacement Combo Set - 3 Rings This is a high wear common repair & replacement item. The gas rings are prone to periodic breakage & wear, tear and require them to be replaced periodically...HKP-17933$8.95