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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Out Of Stock
HK416, MR556 M-LOK 9" Handguard
HKP HK Parts
$199.95HK MR556 & HK416 9" M-LOK Forearm Specifications: Weight: 10.2 oz MADE IN THE USA BILLET MACHINED MUCH LIGHTER THAN THE HK FACTORY FOREARM OFFERINGSHKP-17981$199.95 -
HK416, MR556 Firing Pin Catch - Titanium
HKP HK Parts
$49.95HKP HK Parts HK416 and HK MR556 Firing Pin - Titanium Made in the US from grade 6 Titanium. Get the lightest, strongest firing pin available for your HK firearm. Compatible With: HK416, MR556 HK M27HKP-17767$49.95 -
Out Of Stock
HK G36, SL8 Piston Rod Spring
H&K Heckler & Koch
$9.99HK G36 & SL8 Piston Rod Spring A must-have spare repair and replacement part. New HK German factory part. Compatible With: HK G36 HK SL8HKP-01863$9.99 -
Out Of Stock
HK G36 Magazine Spring - 30 Round
H&K Heckler & Koch
$9.95HK G36 30 Round Magazine Follower Spring New German HK G36 30 round magazine spring. A high wear and replacement item. Compatible With: G36 G36K G36C Sl8-G36 conversions that use the G36 magHKP-16363$9.95 -
HK G36K Handguard - Extended - Picatinny Rail
H&K Heckler & Koch
$149.95HK G36K German Factory Picatinny Extended Bottom Rail Fits all HK G36K newer style handguards with the rail attachment points. This is the full-length version for a full-length bottom rail for the G36K forearm. New HK German manufacture.HKP-01137$149.95 -
Out Of Stock
HK G36C, G36K Gas Piston - US Made
USA
$49.95HK G36C/G36K Gas Piston New Tom Bostic US Made G36C & G36K Gas Piston. Counts as one US made compliant part for your SL8 - G36C or G36K style conversion. This is one of the best parts to use on the conversion as it is one of the cheapest ways to get...HKP-17277$49.95 -
HK UMP Parts Kit - .45 ACP - De-Milled - Used
H&K Heckler & Koch
$3,429.95HK German UMP .45 Parts Kit- Used PD Trade-In UMP .45 German parts kit complete with all the factory HK parts minus the receiver. PD trade-ins are in good shape. Click this link to complete your build with an S5 Tactical receiver. Black Ops Defense...HKP-00589$3,429.95 -
HK USC (.45 ACP) Bolt Group- Incomplete
H&K Heckler & Koch
$699.95HK German USC .45 Factory Semi Bolt - Incomplete HK German USC, Omega GS 45 caliber bolt carrier that is stripped. Just add the firing pin, firing pin spring, extractor and firing pin retaining pin for a complete bolt. Made in Germany.HKP-17011$699.95 -
HK23E Locking Piece #20 - 70 Degree
RCM
$49.95New US-Made #20 Locking Piece - 70 Degree For HK23E New US-manufactured RCM # 20 70-degree locking piece for HK23E and other custom builds. Made from the finest ordnance grade steel and heat treated to perfection. A perfect spare for your...HKP-02525$49.95 -
Out Of Stock
HK21E, HK23E Complete Recoil Rod Assembly
H&K Heckler & Koch
$0.00HK 21E, 23E Recoil Rod Assembly Complete Great item to have on hand as this is a high wear and replacement item. Compatible With: HK 21E HK 23E MM23E MM21E Other custom builds or clonesHKP-00570$0.00 -
HK91, G3 Navy Style Trigger Group (SEF) - Used Good
H&K Heckler & Koch
$354.95H&K 91/G3 (7.62x51/.308) Navy Style Trigger Group (SEF) - Used Good These are pulled from German military HK G3 rifles. These work great as spares or for collectible items. These are used but in good shape overall. Includes: SEF Black Polymer...HKP-00930$354.95 -
On Sale
HK33, HK53, HK93 Complete FBI Trigger Group - Clipped, Pinned
H&K Heckler & Koch
Now: $689.95Was: $849.95Heckler and Koch Complete FBI Trigger Group for HK33, HK53, HK93 - Clipped & Pinned Complete FBI-style trigger group for HK93, HK53, and HK33 pattern rifles chambered in 5.56 / .223. Manufactured from genuine Heckler and Koch German components...HKP-00019Now: $689.95Was: $849.95