MP5K / SP5K Series
Discover the most comprehensive selection of HK MP5K and SP5K parts at HKP. From bolt carrier groups and barrels to trigger packs and magazines, we provide all the HK parts you need to build, upgrade, or maintain your firearm. Whether you're enhancing your MP5K with 922r compliant parts or looking for the perfect SP5K flash hider, our top-quality components are designed for precision, reliability, and performance. Trust HKP for all your MP5K and SP5K parts and accessories.
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HK MP5, AP5 Magazine Catch Push Button
MKE
$6.95HK MP5, AP5 Magazine Catch Button Push button for magazine catchCompatible with: HK MP5, SP5 HK MP5K, SP5K HK SP89 HK94 HK33, HK53, HK93 HK91, G3 In-spec. clones and custom buildsHKP-22548$6.95 -
$129.95 -
Out Of Stock
B&T Stock Conversion Kit - Stock or Brace Adapter - Telescopic
B&T Brugger & Thomet
$90.00B&T Stock Conversion Kit for Telescopic Brace/Stock Adapters This stock conversion kit will work on all models of telebraces with a tailhook adapter endplate. Perfect for converting you telescopic brace into a proper stock (NFA rules apply). The kit...HKP-21725$90.00 -
HK MP5K Receiver Flat - .40 S&W, 10mm
HKP HK Parts
$199.95MP5K-40, MP5K-10 Receiver Flat - USA Receiver Flat for use with a MP5K-40 or MP5K-10mm build. Please note: This is for the flat as picture no weldments are included. ***This US made receiver flat counts as one required 922r compliant part***HKP-18033$199.95 -
HK MP5SD Brass Catcher - Quick Detach
B&T Brugger & Thomet
$210.00B&T MP5SD Brass Catcher For Use With B&T Handguard The B&T brass catcher for the MP5SD locks into perfect position when mounted to the matched B&T's HK MP5SD Tri-Rail Handguard. Features a quick disconnect mechanism for easy...HKP-18099$210.00 -
Out Of Stock
RMR, SRO Adapter - 45° - Rail Offset
Trijicon
$91.45Trijicon RMR/SRO 45° Rail Offset Adapter Perfect for that situation where you need the versatility of a magnified optic paired with a Trijicon RMR or SRO red dot sight in close quarters. This offset rail adapter attaches to the firearm's picatinny...HKP-20336$91.45 -
On Sale
HK MP5 Selector Lever Conversion Set - 4 Position Burst To 0,1
H&K Heckler & Koch
Now: $129.95Was: $179.95HK 4 Position Burst To Semi ONLY Conversion Selector Lever Set - German HK The German HK selector lever set will allow the use to convert the following: 0,1,3,F Trigger packs 0,1,2,F Trigger packs To safe, semi only as far as the way the selector...HKP-17996Now: $129.95Was: $179.95 -
HK MP5K Ultra Carbine Stock and Adapter
HKP HK Parts / Magpul
$312.95HK MP5K Magpul UCS Stock with Adapter The HK Parts UCS adapter and stock for the MP5K pairs our proven stock adapter with Magpul's UCS stock for a compact, adjustable configuration. The UCS stock features a reversible hinge for left and right folding...HKP-22198$312.95 -
B&T Angled Foregrip - Picatinny
B&T Brugger & Thomet
$71.99B&T Angled Foregrip - Coyote Tan - Picatinny Mount For those shooters who prefer an angled foregrip, this grip is the perfect solution. The lugs at the end of the grip assure a firm rest for the supporting hand. The grip can be mounted easily onto...HKP-21392$71.99 -
Out Of Stock
HK MP5, MP5K, G3 Night Sights
Trijicon
$159.95Trijicon Bright & Tough - Night Sights - H&K SP89, Carbines, Rifles Trijicon bright & tough night sights are three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. Housed in a metal...HKP-20325$159.95 -
On Sale
HK Single Point Leather Sling - OD Green
HKP HK Parts
Now: $31.84Was: $49.95Single Point Leather Sling - OD Green Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...HKP-20163Now: $31.84Was: $49.95 -
Triangle Stock - TS-8 with 1913 Folding Mech
JMAC Customs
$299.95JMAC Customs TS-8 w/ 1913 Folding Mech Triangle stock 8" with our 1913 folding mech (not assembled) 2x integrated QD sling socket 8" length Drilled and tapped for optional cheek risers (will be available in the future) Compatible with SIG folding...HKP-20145$299.95