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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Arm Brace Hook
MI Midwest Industries
$97.95Midwest Industries Arm Brace Hook The Arm Brace Hook is designed for pistols that use a 1.2" diameter buffer tube. It provides a secure and stable point of contact while offering a built-in,...HKP-22417$97.95 -
Out Of Stock
HK MP5 Safety Select Catch Lever Sleeve - Ambi
H&K Heckler & Koch
$12.95HK MP5 Safety Select Catch Lever Sleeve - Ambidextrous Trigger Packs Factory replacement sleeve for the safety selector catch lever. Compatible With the Following Ambidextrous Trigger Packs:HKP-22337$12.95 -
On Sale
HK416, MR556 Barrel Flute Cleaning Brush - 5.56 / .223
HKP HK Parts
Now: $15.91Was: $24.95HK MR556, HK416 Cleaning Brush - Barrel Flute - 5.56 / .223 This brush is a must-have for cleaning the chamber flutes on a MR556 or HK416 firearm. If the flutes become clogged or dirty, the firearm...HKP-22316Now: $15.91Was: $24.95 -
On Sale
HK G36 Magazine - 30 Round - LEO Marked - USED - BLEMISHED
H&K Heckler & Koch
Now: $89.96Was: $195.99H&K G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED - BLEMISHED BROKEN COUPLERS AND LUGS - VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL ANDHKP-22212-BNow: $89.96Was: $195.99 -
On Sale
HK91, G3 Caliber Conversion Kit - .22LR - BLEMISHED
H&K Heckler & Koch
Now: $409.46Was: $945.95Heckler and Koch HK G3, HK91 .22LR Caliber Conversion Kit - BLEMISHED THESE KITS INCLUDE A BENT BARREL AND ONE MAGAZINE. BLEMISHED PARTS ARE SOLD AS IS. THIS KITHKP-01147-BNow: $409.46Was: $945.95 -
Out Of Stock
HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"
H&K Heckler & Koch
$389.95H&K HK MR556 A4/A5 16.5" Barrel This 16.5" factory H&K MR556 A4 barrel is cold hammer-forged from high-quality steel for exceptional durability, accuracy, and longevity. Manufactured to Heckler &...HKP-21931$389.95 -
On Sale
HK MP5 Receiver Flat - 9mm - no Sling Clip
HKP HK Parts
Now: $121.09Was: $189.95HKP HK MP5 9mm Receiver Flat w/o Sling Clip The MP5 9mm receiver flat serves as the foundation for custom MP5 builds. This version does not include a sling clip cutout, offering flexibility for...HKP-21828Now: $121.09Was: $189.95 -
Out Of Stock
HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5
Nefarious Arms
$594.95Nefarious Arms HK 416/MR556 14.5" A5 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or...HKP-21590$594.95 -
On Sale
Bolt Knob - Fluted
Tactical Precision MFG
Now: $18.71Was: $48.99TPM - Fluted Bolt Knob These bolt knobs can dress up any rifle with a 5/16×24 threaded bolt handle. Features: DimensiHKP-20786Now: $18.71Was: $48.99 -
On Sale
Bolt Knob - Drake - Aluminum
Tactical Precision MFG
Now: $15.71Was: $39.99Drake Bolt Knob - Aluminum These bolt knobs are made from aluminum and are finished a in midnight bronze Cerakote and will fit any 5/16-24 threaded bolt handle. Features:HKP-20773Now: $15.71Was: $39.99 -
On Sale
HK UMP 45 Magazine Spring - .45 ACP - 15 Round - US
HKP HK Parts
Now: $6.34Was: $9.95HK UMP .45 15 Round Magazine Spring Perfect for spares and to have on hand as these are consumable item that needs to be replaced from time to time. A must have item if you own a USC/UMP conversion...HKP-20679Now: $6.34Was: $9.95 -
HK416, MR556 Super Modular Handguard - 10.5" - M-LOK
Geissele
$499.95Geissele 10.5" M-LOK Handguard for HK416 The super modular rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK...HKP-20327$499.95