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
AR-15 A2 Stock Sling Adapter - USED
Now: $9.97Was: $24.95AR-15 A2 Stock Sling Adapter - USED US-made stock sling adapter for the AR-15 A2 stock. Compatible With: AR-15 A2 StockHKP-99180Now: $9.97Was: $24.95 -
On Sale
HK417, MR762 Bolt Head, Complete - E1
H&K Heckler & Koch
Now: $536.95Was: $595.95Heckler and Koch 417 E1 Bolt Head - Complete Rare factory bolt head for the HK417. Compatible With: HK MR762 HK417HKP-22037Now: $536.95Was: $595.95 -
HK MP7 Lock Washer
H&K Heckler & Koch
$4.95H&K MP7 Lock Washer Factory lock washer for the MP7 platform. Specifications: Inside diameter: 4.10mm Outside diameter: 7.75mm<HKP-21978$4.95 -
On Sale
HK G3 A2 Adjustable Stock Extension - GUNSMITH SPECIAL
USA
Now: $22.46Was: $69.95G3 A2 Adjustable Stock Extension -GUNSMITH SPECIAL MISSING EXTENSION BLOCKS Please Note: Will require work before being functional. HKP recommends the work be performed by a professional gunsmith...HKP-00872-BNow: $22.46Was: $69.95 -
HK21, HK21E, HK23, HK23E Double Frame Front Sight Base
H&K Heckler & Koch
$66.95H&K 21/21E/23/23E Double Frame Front Sight Base Original, unissued German double frame front sight bases. These have never been welded to a cocking tube and are perfect for completing or restoring...HKP-21908$66.95 -
HK21E, HK23E Left Receiver Reinforcement Rail Weldment
H&K Heckler & Koch
$14.95H&K 21E/23E Left Receiver Reinforcement Rail Weldment Genuine German-made weldment for left-side receiver reinforcement rail. Precision-machined using the correct steel and milling for you HK21E or...HKP-21907$14.95 -
On Sale
HK MP5K Stock or Brace Adapter - .40 S&W, 10mm
HKP HK Parts
Now: $72.64Was: $113.95HKP HK Parts .40S&W and 10mm Brace and Stock Adapter for HK MP5K Easily attach your favorite A2 style stock to your MP5K 40, 10 with this durable, precision-engineered adapter. Made in the US and...HKP-21869Now: $72.64Was: $113.95 -
HK MR556 Barrel - 5.56 / .223 - 16" - Complete Upper
H&K Heckler & Koch
$989.95HK MR556 16" Complete Upper Barrel Factory HK MR556 16" barrel, complete with a factory-installed barrel nut, gas block and flash hider. Every component is brand new and meticulously crafted,...HKP-21805$989.95 -
On Sale
HK G3 Brass Catcher
B&T Brugger & Thomet
Now: $223.46Was: $385.00B&T HK G3 Brass Catcher THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL. Mounts to B&T tri-rail handguard (BT-21042) which is no longer available from B&T.HKP-21703Now: $223.46Was: $385.00 -
On Sale
HK416 Handguard - 9" - Strike Industries GRIDLOK - Full Duty
Strike Industries
Now: $203.33Was: $318.95Strike Industries HK 416 - 9" Handguard - Gridlok Full Duty The Strike Industries GRIDLOK® Rail for 416 gives you a primary, a secondary or multiple setup options as a quick and direct handguard swap...HKP-21312Now: $203.33Was: $318.95 -
On Sale
HK MP5K Barrel - 10mm - Threaded 14x.75 with 3 Lug
RCM
Now: $188.46Was: $279.95RCM HK MP5K 10mm Barrel - Threaded 14x.75 Upgrade your MP5K with the RCM HK MP5K 10mm Barrel, featuring a precise 14x1.75 threading for optimal accessory compatibility. Expertly crafted to enhance...HKP-21155Now: $188.46Was: $279.95 -
Out Of Stock
HK11 LMG 7.62×51mm NATO Parts Kit
H&K Heckler & Koch
$0.00H&K HK11 LMG 7.62×51mm NATO Parts Kit HK 11 Parts Kit 7.62x51mm demilled to BATFE specs with 2 spare G3 aluminum magazines. The HK11 was built during the 70’s and 80’s. These are interchangeable with...HKP-20912$0.00