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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HK33, HK53, HK93 SBA5 Pistol Stabilizing Brace and Adapter
SB Tactical
$319.95SB Tactical HK 93/33/53 SBA5 Pistol Stabilizing Brace with Adapter SB Tactical combined with our HK 93/33/53 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...HKP-22069-M$319.95 -
HK MR762 A4 Handguard - Complete
H&K Heckler & Koch
$334.95Heckler and Koch HK MR762 A4 Complete Handguard 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 ambidextrous sling use...HKP-21972$334.95 -
HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished
H&K Heckler & Koch
$84.95HK G3/91 (7.62x51/.308) 15 Round Steel Magazine - Refinished HK G3 factory steel 15-round magazine, expertly restored to its former glory. This magazine has been meticulously refinished inside and out, featuring a polished follower along with a fully...HKP-21922$84.95 -
HK416, MR556 Barrel - 5.56 - 9" - Threaded 1/2"x28 - PDW - A1 and A3
Nefarious Arms
$594.95Nefarious Arms HK 416C 9" Barrel The Nefarious Arms HK416/MR556 Barrel is built for shooters who demand precision, durability, and consistent performance. Made in the USA from 4150 chromoly steel, cold-hammer-forged, and chrome-lined for enduring...HKP-21906$594.95 -
On Sale
HK MP5SD Rubber Handguard - BLEMISHED
H&K Heckler & Koch
Now: $168.95Was: $229.95HK German MP5SD Rubberized Steel Handguard VARYING CONDITION SHOWN - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Ideal for HK MP5SD 9mm...HKP-00136-BNow: $168.95Was: $229.95 -
HK A3 Stock Release Lever Rebuild Kit
H&K Heckler & Koch
$14.95H&K A3 Stock Release Lever Rebuild Kit This A3 collapsible stock rebuild kit is designed for the release lever on MP5, SP5, 93/53/33, and G3/91 collapsible stocks. With A3 stocks becoming more expensive it's a great idea to keep this kit on...HKP-21851$14.95 -
HK21E, HK23E Rear Sight Base
H&K Heckler & Koch
$89.95H&K HK21E/23E Rear Sight Base Factory German HK21E/23E rear sight base ready to weld on your build. The rear sight base serves as the mounting point for the rear sight, providing stability and proper alignment for accuracy on your HK21E or HK23E. As...HKP-21849$89.95 -
On Sale
HK33, HK53, HK93 Unfinished Polymer Trigger Piece - USED
USA
Now: $14.95Was: $79.95HK 93/53/33 Unfinished Polymer Trigger Piece - USED This unfinished trigger piece is compatible with HK 90 series firearms. Ideal for those looking to complete or customize their build. Compatible With: HK 93/53/33 THIS CLOSEOUT PART IS NOT ELIGIBLE...HKP-99050Now: $14.95Was: $79.95 -
HK MP5K Stock or Brace Adapter - 10mm / .40 S&W - Picatinny Rail
HKP HK Parts
$129.95HKP HK MP5K .40/10 Picatinny Rail Brace/Stock Adapter Open your MP5K up to a vast range of brace and stock options with our Picatinny rail stock adapter. Designed specifically for the MP5K 40 cal and 10mm platforms. Available exclusively at...HKP-21833$129.95 -
On Sale
HK MP5F Bolt Group - Complete - BLEMISHED
H&K Heckler & Koch
Now: $1,895.95Was: $4,399.95H&K MP5 F Bolt Group Complete - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The bolt head, bolt carrier, and all F/A-related parts...HKP-00953-BNow: $1,895.95Was: $4,399.95 -
HK G36 Helmet Stock
B&T Brugger & Thomet
$280.00B&T HK G36 Helmet Stock The B&T G36 helmet stock was designed to clearance the operator's helmet when viewing the target through the rifle's sights. This military derived design is precision made in Switzerland. Compatible With: HK G36HKP-21692$280.00 -
HK MP5K Parts Kit - .40 S&W - Pistol Build
$1,829.95HKP MP5K .40 S&W Pistol Build Kit MP5K .40 complete pistol build kit. Featuring the latest in highest quality components for an unparalleled build. Equipped with a 9/16x24 3-lug threaded barrel to accept a wide variety of muzzle devices and...HKP-21534$1,829.95