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
HK90 Series Cocking Tube End Cap - Aluminum - USED
HKP HK Parts
Now: $7.95Was: $12.95HK Cocking Tube End Cap - Aluminum - USED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Made from weight-saving aircraft-grade aluminum alloy. US-made. Compatible With: All 90 series HK firearms and...HKP-02806-USEDNow: $7.95Was: $12.95 -
HK MP5K, AP5-P End Cap - Incomplete
MKE
$27.95MKE MP5K, AP5-P - Incomplete MKE manufactured replacement end cap. This end cap does not include the buffer, hardware, or sling swivel. Compatible With: HK MP5K HK SP89 HK SP5K Century AP5-P, AP5-MHKP-22472$27.95 -
WOOX Edge Stock - Walnut - Picatinny Mount
WOOX
$228.95 - $298.95WOOX Edge Stock - Walnut The WOOX Edge Stock is a premium upgrade for rifles and SMGs featuring a 3 Picatinny stock interface. It blends a precision-machined aluminum body with an American walnut cheek riser for a clean profile, solid lockup, and a...HKP-22460-M$228.95 - $298.95 -
On Sale
HK MP5, AP5 Front Sight Tower - UNFINISHED - BLEMISHED
MKE
Now: $22.46Was: $49.95MKE AP5, MP5 Front Sight Tower - UNFINISHED - BLEMISHED SOLD INDIVIDUALLY - UNFINISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The front sight tower is a...HKP-22220-BNow: $22.46Was: $49.95 -
HK MP5, MP5K, HK416, MR556 Flash Hider - 1/2x28 - Taper Mount
JMAC Customs
$116.951/2x28 - Plan B Taper Mount Flash Hider for MP5, HK416, MR556, APC223 The 360HD is the latest evolution in JMac Custom's Recoil Reduction Device (RRD) family of muzzle brakes, designed to meet the needs of serious shooters and...HKP-22408$116.95 -
HK417, MR762 Handguard - 15" - Tropentarn
H&K Heckler & Koch
$488.95Heckler and Koch HK MR762 A4 Complete Handguard - Tropentarn - 15" Factory HK handguard with a 12 o’clock Picatinny rail and M-LOK slots at 3, 6, and 9 o’clock for mounting optics and accessories. Includes dual QD sling sockets for...HKP-99326$488.95 -
HK416, MR556 Handguard - 12.5" - M-LOK - Tropentarn
H&K Heckler & Koch
$488.95H&K HK MR556/HK 416 12.5" M-LOK Handguard - Tropentarn New HK German manufactured handguard for the HK 416 and MR556 firearm. ONLY 3 AVAILABLE Compatible With: HK MR556 HK 416HKP-99327$488.95 -
HK416 A1, MR556 A1 Barrel Nut
Nefarious Arms
$49.95Nefarious Arms HK MR556 A1/416 A1 Barrel Nut Whether replacing a barrel nut or sourcing the best parts for your build, the Nefarious MR556/416 barrel nut is an excellent option. Meticulously crafted in the US to the highest quality standards...HKP-22279$49.95 -
Out Of StockOn Sale
HK33K, HK53 Locking Piece #3 - 58 Degree - New Old Stock
H&K Heckler & Koch
Now: $1,449.95Was: $1,949.95Heckler and Koch HK53 Locking Piece #3 - 58 Degree - New Old Stock ONLY 2 UNITS AVAILABLE - AS PICTURED Priced for ONE Locking Piece - Condition Varies by Unit - Sold Individually Rare genuine German HK #3 locking piece. This is the correct factory...HKP-99315Now: $1,449.95Was: $1,949.95 -
HK MP5 Parts Kit - A3 Buttstock - 4 Position 3 Round Burst - .40 S&W, 10mm
H&K Heckler & Koch
$4,799.95H&K Heckler and Koch A3 4 Position 3 Round Burst Parts Kit for HK MP5 40,10 Genuine German HK MP5 .40 parts kits are becoming increasingly rare, and this setup is a prized find. Featuring the sought-after bolt hold open feature, the 4-position,...HKP-22242$4,799.95 -
On Sale
Century Arms AP5 Flash Hider - Incomplete
MKE
Now: $37.46Was: $79.95MKE AP5 Incomplete Flash Hider The MKE AP5 and MKE AP5-P OEM flash hider is an essential spare for anyone needing to replace a broken or damaged flash hider body. With a straightforward process, you can easily remove the locking latch, spring, and pins...HKP-22223Now: $37.46Was: $79.95 -
On Sale
HK MP5 Tactical Weapon Light - USED
B&T Brugger & Thomet
Now: $129.95Was: $299.95B&T HK MP5 Tactical Handguard Weapon Light - USED ONLY 3 UNITS LEFT - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DOES NOT INCLUDE BATTERIES LED weapon light compatible with B&T TL99 MP5/SP5 handguards. Specifications: High...HKP-99270Now: $129.95Was: $299.95