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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HK SL8, G36 Magazine Release - Extended
H&K Heckler & Koch
$19.95Heckler and Koch Oversized Extended Magazine Release for HK SL8 and HK G36 New HK German HK SL8, HK G36, HK243 extended mag release. A must have upgrade for your HK SL8, SL8 to G36 conversion or G36 firearm. The HK extended magazine release is a...HKP-17720$19.95 -
HK416, MR556, HK417, MR762 Handguard Locking Screw - Stainless
HKP HK Parts
$9.95HKP HK Parts Handguard Locking Screw - Stainless for HK416, HK MR556, HK417, and HK MR762 Replacement handguard locking screw that secures the handguard to the upper receiver. Made in USA from 17-4 SS with a 5mm hex head. Compatible With: HK...HKP-17657$9.95 -
M-LOK Rail Section - 3 Slots
Magpul
$10.95Magpul M-LOK Rail Section - 3 Slots Designed for use with all M-LOK compatible hand guards and forends, M-LOK aluminum rail sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc...HKP-20661$10.95 -
Out Of Stock
HK416, MR556 Trigger Guard - A5 Style
HKP HK Parts
$39.95HKP 416 & HK MR556 HK416A5 Style Trigger Guard Now you can upgrade your MR556, 416 & CR556 to the latest Gen HK 416 A5 Enhanced Trigger Guard. Fully assembled and ready to drop in. With a larger trigger guard area you can now use gloves...HKP-17793-M$39.95 -
HK SP5 Grip Module - SL
Magpul
$149.95 - $179.95Magpul HK SP5 SL Grip Module HK Parts brings a solution for those that are looking to upgrade to the Magpul SL grip. Click the drop down menu to select either the clipped and pinned or push pin options. This is a perfect option for those wanting improved...HKP-20574-M$149.95 - $179.95 -
HK MP5 Trunnion - 9mm
RCM
$64.95RCM MP5 9mm Trunnion US made to exact factory HK specifications and machined completely from ordnance grade steel and heat treated to factory specs. Compatible With: MP5, 94 MP5K SP89 Clones or other custom buildsHKP-01193$64.95 -
HK Rear Sight Spring - German
H&K Heckler & Koch
$4.95H&K German Rear Sight Spring HK German rear sight spring for rear diopter sights.HKP-00146$4.95 -
HK MP5 Receiver Flat with Weldment Set
PTR
$294.95MP5 9mm Receiver Flat With Complete Weldment & Rivet Set - PTR/LSC Several years ago PTR bought out LSC and now owns the tooling and dyes for the LSC 9mm flats. These elusive flats have been hard to find and are now available for the first time here...HKP-19509$294.95 -
On Sale
HK MP5, HK94, SP5K Magazine Floorplate - 9mm - US - BLEMISHED
USA
Now: $5.95Was: $9.95MP5 & MP5K 9mm Magazine Floor Plate - BLEMISHED VARYING CONDITION - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART PRICE IS PER MAGAZINE Floorplate - SOLD...HKP-17507-BNow: $5.95Was: $9.95 -
HK MP5K to MP5 Stock or Brace Adapter
HKP HK Parts
$129.95HKP HK MP5K to MP5 Brace/Stock Adapter Our new MP5K to MP5 stock adapter is the perfect addition for those looking for a stock that provides a better line of sight and a better cheek rest position like the MP5 A2 fixed stock does. This stock adapter will...HKP-20988$129.95 -
HK SEF Short Axle Selector Lever For Metal Trigger Housings Only - Used
HKP HK Parts
$9.95HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only - Used Compatible with all metal HK grip frames. Please Note: The polymer (plastic) style SEF housing uses the longer axle SEF selector lever, not this product offering.HKP-00120$9.95 -
HK G36 Magazine Conversion to AR-15 Magwell
H&K Heckler & Koch
$235.99H&K HK G36 to AR-15 Mag Conversion Magwell - Black Simply swap the magazine well from the G36 to this offering and you can then run AR15/M4 style magazine in your G36 or SL8/G36 conversion. Allows use of all AR15-M4 magazines in the G36 with this...HKP-17605$235.99