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
HK416 A5 Bolt Carrier
H&K Heckler & Koch
Now: $1,497.95Was: $1,997.95H&K HK416 A5 Bolt Carrier Factory HK416 A5 full auto bolt carrier. This carrier is backwards compatible with earlier HK416 A1 and A3 variants. Features the updated captive firing pin retaining system. Compatible With: HK416 A5 HK416 A1 HK416...Now: $1,497.95Was: $1,997.95 -
HK MP5 Stock or Brace Adapter - A2 - .22LR
HKP HK Parts
$124.95HK MP5 .22LR A2 Stock Adapter The MP5 .22LR adapter provides a solid mounting interface to add an HK91/G3 A2 stock section. Features: Ambidextrous QD sling attachment points Easy installation with included hardware CNC machined from aircraft-grade...$124.95 -
HK417 Bolt Carrier - Full Auto
H&K Heckler & Koch
$1,859.95H&K HK417 Bolt Carrier - Full Auto Genuine factory full auto HK417 bolt carrier. Although designed for the full auto HK417, the carrier is compatible with MR762 receivers. Limited number available. Compatible With: HK417 HK...$1,859.95 -
On Sale
HK 90 Series Locking Roller for Bolt Head - 7.96mm
MKE
Now: $22.95Was: $28.95MKE -4 Roller for Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. Made in Turkey by MKE on HK tooling. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the...Now: $22.95Was: $28.95 -
HK90 Series Sear and Trigger Axle - USA
MKE
$1.99HK Sear and Trigger Axle For 90 Series - SURPLUS MKE sear and trigger axle for the 90 series style trigger packs. Each axle pin (aka pivot pin) measures .197 inches (5.0mm). Each HK trigger pack uses a total of 2 of these axle pins per trigger pack...$1.99 -
HK416, MR556 Muzzle Device - Assault - Closed Tine - 1/2x28
B&T Brugger & Thomet
$109.00B&T Assault Closed Tine Muzzle Device - HK416/MR556 - 1/2x28 Factory B&T 1/2x28 flash hider and suppressor adapter for 5.56 rifles. Includes: ROTEX flash hider Shim kit Rocksett pipette Features: Swiss-manufactured Threaded 1/2x28 High...$109.00 -
On Sale
HK UMP, USC Housing - Lower - Navy Grip - 40 S&W / .45 ACP / 9mm - USED
H&K Heckler & Koch
Now: $374.96Was: $649.95H&K Heckler & Koch's HK UMP and HK USC Housing - Lower - Navy Grip - 40 S&W / .45 ACP / 9mm - USED Priced for ONE Navy Lower Housing ONLY - Each unit Sold INDIVIDUALLY ONLY 4 UNITS AVAILABLE - Condition Varies by Unit Genuine H&K...Now: $374.96Was: $649.95 -
On Sale
HK MP5 Folding Helmet Stock - Adjustable Length - USED
B&T Brugger & Thomet
Now: $209.96Was: $379.95B&T HK MP5 Folding Helmet Stock - Adjustable Length - USED ONLY 3 UNITS AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Swiss...Now: $209.96Was: $379.95 -
On Sale
HK MP5 Trigger Housing - 2 Position - Push Pin - USED
USA
Now: $48.71Was: $99.95US-Made HK MP5 2 Position Trigger Housing - Push Pin - USED Priced for ONE Trigger Housing - Condition Varies by Unit - Sold Individually Used US-made 2-position housing for the MP5. Compatible With: HK MP5 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR...Now: $48.71Was: $99.95 -
Out Of StockOn Sale
HK SL8, G36 Optic Mount - Ultra Low Profile - Picatinny Rail
Now: $322.46Was: $599.95Titan Tactical HK SL8/G36 Ultra Low Profile Optic Top Rail V2 ONLY 2 UNITS AVAILABLE - AS PICTURED DOES NOT INCLUDE HARDWARE. PRICE IS PER MAGAZINE - SOLD INDIVIDUALLY. Precision-machined 6061 aluminum optic rail for HK SL8 and G36 rifles. Sits...Now: $322.46Was: $599.95 -
On Sale
HK G36K Handguard - LED Light - Used - Rare
Surefire
Now: $549.95Was: $1,349.95Surefire HK G36K Handguard - Used - Rare SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. This authentic Surefire handguard for the HK G36K is a rare find with only a few units available. A great collector’s...Now: $549.95Was: $1,349.95 -
Out Of Stock
HK416, MR556 Bayonet Adapter - M27 Style
H&K Heckler & Koch
$61.95Heckler and Koch Bayonet Adapter HK416, MR556 for M27 Build OEM bayonet adapter for HK416 and MR556 rifles for M27-style builds. Mounts to the barrel assembly to accept a standard bayonet. Specifications Bayonet adapter only (roll pin sold...$61.95