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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Ergo M-LOK Harris Bipod Mount
Ergo
$33.95M-LOK Harris Style Bipod Mount Features: Contoured to fit Harris-style bipods Black anodized 6061-T6 alum.HKP-17851$33.95 -
On Sale
AR-15 Commercial Buffer Tube Kit
HKP HK Parts
Now: $27.95Was: $47.95AR-15 Commercial Buffer Tube Kit Compatible With: All AR-15 style platforms Not correct length for HK rifles Includes: Made with T7 7075 aircraft-grade aluminum Made in the USA with a polished inside tube Mil-Spec triple hard coat Teflon...HKP-02736Now: $27.95Was: $47.95 -
HK416, MR556 Upper Receiver - Stripped - No Forward Assist
H&K Heckler & Koch
$489.99HK416, MR556 Upper Receiver - Stripped - No Forward Assist Genuine HK HK416 upper receiver designed for HK416 and MR556 rifle platforms. This stripped receiver does not include a forward assist or ejection port door. Compatible With HK416, MR556 MR223HKP-22506$489.99 -
HK MP5, MP5K Folding Stock or Brace - HDA3
Haga Defense
$349.95HDA3 Stock and Brace for MP5K, SP5K The HDA3 is a modular, USA-made stock and brace system developed by Haga Defense and A3 Industries. Built for strength, adaptability, and cross-platform compatibility, it delivers premium rigidity, smooth...HKP-22355-M$349.95 -
On Sale
AK Binary Trigger - Curved - BFSIII - BLEMISHED
FA Franklin Armory
Now: $385.99Was: $534.95Franklin Armory BFSIII AK-C1 Standard Caliber - 7.62x39 - BLEMISHED DAMAGED PACKAGING - PRODUCT UNAFFECTED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The...HKP-19833-BNow: $385.99Was: $534.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Pistol Grip - Tool Included
H&K Heckler & Koch
$159.95HK Heckler and Koch's Pistol Grip with tool - Black Factory German pistol grip in black. Compatible With: HK416, MR556 HK417, MR762 M27 G28 AR-15, M4, & M16 PlatformsHKP-22208$159.95 -
On Sale
HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special
USA
Now: $19.95Was: $59.95HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special MP5 length trigger housing perfect for projects or custom builds, each marked with the SE pictogram. The condition will vary from part-to-part vs. the pictured unit. Please Note:...HKP-99103Now: $19.95Was: $59.95 -
Out Of Stock
Picatinny Optic Mount - 39mm - Skeleton - Aimpoint ACRO P-2
B&T Brugger & Thomet
$737.95B&T Aimpoint ACRO P-2 w/ B&T Skeleton Mount 39mm The Aimpoint Acro P-2, paired with the B&T Skeleton Mount (39mm), takes the ACRO reflex sight to new heights in durability and reliability. It's fully enclosed design protects against rain, mud...HKP-21857-M$737.95 -
HK MP5, MP5K Thread Protector - 1/2x32 - RH
HKP HK Parts
$14.95HKP HK MP5/K Thread Protector - Threaded 1/2x32 RH This MP5/K thread protector is designed to safeguard your barrel threads from damage when a muzzle device is not in use. Made in the USA from high-quality steel, it offers durability and a precise fit...HKP-21829$14.95 -
HK MP5K Pistol Stabilizing Brace - SBA5
SB Tactical
$248.95SB Tactical HK MP5K SBA5 Pistol Stabilizing Brace SB Tactical combined with our MP5K end cap creates a true drop-in brace, perfect for those seeking the flexibility that the SBA5 pistol stabilizing brace offers. With a 5-position adjustable length, this...HKP-21795-M$248.95 -
HK MP5K, AP5-P Trigger Group
MKE
$479.95Century AP5-P, AP5-M Trigger Group This trigger group serves as a direct replacement for AP5-P, AP5-M, Zenith clones, and factory MP5K receivers. For customers needing compatibility with shelfed receivers, we also offer a clip-pin service as an optional...HKP-21668$479.95 -
Out Of Stock
HK MP5, SP5 Adapter - Tail Hook
B&T Brugger & Thomet
$135.00B&T Tail Hook Adapter MP5/SP5 (Including K) Compatible With: HK MP5/MP5K HK SP5/SP5KHKP-21763$135.00